Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 34

Full-Text Articles in Medicine and Health Sciences

Implantable Biomaterials To Provide Local Immunotherapy Following Surgical Resection., Michael J Gough, Jason R Baird, R Bryan Bell Dec 2018

Implantable Biomaterials To Provide Local Immunotherapy Following Surgical Resection., Michael J Gough, Jason R Baird, R Bryan Bell

Articles, Abstracts, and Reports

No abstract provided.


Checkpoint Inhibitors: What Gastroenterologists Need To Know., Monjur Ahmed Dec 2018

Checkpoint Inhibitors: What Gastroenterologists Need To Know., Monjur Ahmed

Division of Gastroenterology and Hepatology Faculty Papers

Checkpoint inhibitors are increasingly being used in clinical practice. They can cause various gastrointestinal, hepatic and pancreatic side effects. As these side effects can be serious, appropriate management is essential. The different checkpoint inhibitors with their mechanisms of action and indications, as well as evaluation and management of gastrointestinal, hepatic and pancreatic side effects, are discussed in this article.


Sequence Analysis Methods For The Design Of Cancer Vaccines That Target Tumor-Specific Mutant Antigens (Neoantigens), Jasreet Hundal Dec 2018

Sequence Analysis Methods For The Design Of Cancer Vaccines That Target Tumor-Specific Mutant Antigens (Neoantigens), Jasreet Hundal

Arts & Sciences Electronic Theses and Dissertations

The human adaptive immune system is programmed to distinguish between self and non-self proteins and if trained to recognize markers unique to a cancer, it may be possible to stimulate the selective destruction of cancer cells. Therapeutic cancer vaccines aim to boost the immune system by selectively increasing the population of T cells specifically targeted to the tumor-unique antigens, thereby initiating cancer cell death.. In the past, this approach has primarily focused on targeted selection of ‘shared’ tumor antigens, found across many patients. The advent of massively parallel sequencing and specialized analytical approaches has enabled more efficient characterization of tumor-specific …


Perilymphatic Irx-2 Cytokine Therapy To Enhance Tumor Infiltrating Lymphocytes And Pd-L1 Expression Preceding Curative-Intent Therapy In Early Stage Breast Cancer, Joanna Pucilowska, Venkatesh Rajamanickam, Katherine Sanchez, Valerie Conrad, Alison Conlin, Shagheyegh Aliabadi-Wahle, Shu-Ching Chang, Gary Grunkemeier, Nikki Moxon, Staci Mellinger, Maritza Martel, James Egan, Monil Shah, David B Page Dec 2018

Perilymphatic Irx-2 Cytokine Therapy To Enhance Tumor Infiltrating Lymphocytes And Pd-L1 Expression Preceding Curative-Intent Therapy In Early Stage Breast Cancer, Joanna Pucilowska, Venkatesh Rajamanickam, Katherine Sanchez, Valerie Conrad, Alison Conlin, Shagheyegh Aliabadi-Wahle, Shu-Ching Chang, Gary Grunkemeier, Nikki Moxon, Staci Mellinger, Maritza Martel, James Egan, Monil Shah, David B Page

Books, Presentations, Posters, Etc.

Background: Cytokines are being explored as a therapeutic strategy to modulate the tumor microenvironment and facilitate immunotherapy benefit in breast cancer. Here, we investigate a locoregional therapeutic approach whereby cytokines (IRX-2) are administered into the subcutaneous peri-areolar tissue (in an anatomic distribution similar to sentinel lymph node mapping) to facilitate immune cell recruitment/activation within the draining lymph nodes and tumor in ESBC. IRX-2 is derived from ex vivo phytohemagglutinin-stimulated lymphocytes and contains multiple cytokines including IL-1β, IL-2, TNF-α, IFN-γ, IL-6, IL-8, and GM-CSF, with stable concentrations from lot to lot. Preclinically, IRX-2 activates T-cells and natural killer (NK) cells, facilitates …


Updated Efficacy Of First Or Second-Line Pembrolizumab Plus In Metastatic Triple Negative Breast Cancer And Correlations With Baseline Lymphocyte And Naïve Cd4+ T-Cell Count, David Page, Joanna Pucilowska, Laura Bennetts, I Kim, Katherine Sanchez, Maritza Martel, Alison Conlin, Nikki Moxon, Staci Mellinger, Anupama Acheson, K Kemmer, Z Mitri, J Vuky, J Ahn, C Abaya, T Manigault, R Basho, Walter Urba, Hl Mcarthur Dec 2018

Updated Efficacy Of First Or Second-Line Pembrolizumab Plus In Metastatic Triple Negative Breast Cancer And Correlations With Baseline Lymphocyte And Naïve Cd4+ T-Cell Count, David Page, Joanna Pucilowska, Laura Bennetts, I Kim, Katherine Sanchez, Maritza Martel, Alison Conlin, Nikki Moxon, Staci Mellinger, Anupama Acheson, K Kemmer, Z Mitri, J Vuky, J Ahn, C Abaya, T Manigault, R Basho, Walter Urba, Hl Mcarthur

Books, Presentations, Posters, Etc.

Background: In mTNBC, anti-PD-1/L1 monotherapy is most effective when administered early in the course of disease, with recent trials demonstrating overall response rates (ORR) of 23-26% in the first-line setting and 5-6% in later lines. This may reflect iatrogenic lymphopenia from preceding cytotoxic chemotherapy. Furthermore, curative-intent chemotherapy is associated with prolonged suppression of naïve CD4+ cells, a T-cell subset that may play a critical role in the generation of de novo anti-tumor immune responses. We present the final clinical results of a pilot study evaluating the safety and efficacy of combining pembrolizumab plus standard-of-care capecitabine in the first/second-line mTNBC …


Il-12 Gene Electrotransfer Triggers A Change In Immune Response Within Mouse Tumors, Guilan Shi, Chelsea Edelblute, Sezgi Arpag, Cathryn Lundberg, Richard Heller Dec 2018

Il-12 Gene Electrotransfer Triggers A Change In Immune Response Within Mouse Tumors, Guilan Shi, Chelsea Edelblute, Sezgi Arpag, Cathryn Lundberg, Richard Heller

Bioelectrics Publications

Metastatic melanoma is an aggressive skin cancer with a relatively low survival rate. Immune-based therapies have shown promise in the treatment of melanoma, but overall complete response rates are still low. Previous studies have demonstrated the potential of plasmid IL-12 (pIL-12) delivered by gene electrotransfer (GET) to be an effective immunotherapy for melanoma. However, events occurring in the tumor microenvironment following delivery have not been delineated. Therefore, utilizing a B16F10 mouse melanoma model, we evaluated changes in the tumor microenvironment following delivery of pIL-12 using different GET parameters or injection of plasmid alone. The results revealed a unique immune cell …


Distinct Role Of Il-27 In Immature And Lps-Induced Mature Dendritic Cell-Mediated Development Of Cd4, Fang Zhou, Guang-Xian Zhang, A. M. Rostami Nov 2018

Distinct Role Of Il-27 In Immature And Lps-Induced Mature Dendritic Cell-Mediated Development Of Cd4, Fang Zhou, Guang-Xian Zhang, A. M. Rostami

Department of Neurology Faculty Papers

Interleukin-27 (IL-27) plays an important role in regulation of anti-inflammatory responses and autoimmunity; however, the molecular mechanisms of IL-27 in modulation of immune tolerance and autoimmunity have not been fully elucidated. Dendritic cells (DCs) play a central role in regulating immune responses mediated by innate and adaptive immune systems, but regulatory mechanisms of DCs in CD4+ T cell-mediated immune responses have not yet been elucidated. Here we show that IL-27 treated mature DCs induced by LPS inhibit immune tolerance mediated by LPS-stimulated DCs. IL-27 treatment facilitates development of the CD4+ CD127+3G11+ regulatory T cell subset …


Preliminary Results From A First-In-Human Phase 1 Study Of The Cd40 Agonist Monoclonal Antibody (Mab) Cdx-1140, Rachel Sanborn, Michael S. Gordon, Mark O'Hara, Nina Bhardwaj, Yi He, Tracey Rawls, Tibor Keler, Michael Yellin Nov 2018

Preliminary Results From A First-In-Human Phase 1 Study Of The Cd40 Agonist Monoclonal Antibody (Mab) Cdx-1140, Rachel Sanborn, Michael S. Gordon, Mark O'Hara, Nina Bhardwaj, Yi He, Tracey Rawls, Tibor Keler, Michael Yellin

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Agonist CD40 mAbs can mediate antitumor immunity through multiple mechanisms, including enhancing tumor antigen presentation, activation of tumoricidal macrophages, and direct growth inhibition/killing of CD40- expressing tumor cells. To fully exploit these mechanisms may require the mAb to be dosed at levels that provide significant tumor and tissue penetration, without dose-limiting-toxicities (DLT) from systemic CD40 activation. Our agonist CD40 mAb, CDX-1140, was selected based on its unique and linear dose-dependent in vitro and in vivo activity and is postulated will achieve maximum agonist activity at dose levels associated with good systemic exposure. CDX-1140 is a fully human IgG2 agonist …


Delayed Immune-Related Events After Discontinuation Of Immunotherapy – Dire Syndrome?, Marcus Couey, R. Bryan Bell, Ashish Patel, Marka R Crittenden, Brendan Curti, Rom Leidner Nov 2018

Delayed Immune-Related Events After Discontinuation Of Immunotherapy – Dire Syndrome?, Marcus Couey, R. Bryan Bell, Ashish Patel, Marka R Crittenden, Brendan Curti, Rom Leidner

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Although the temporality of immune-related adverse events (irAE) is well-recognized during immunotherapy to be highly variable and often delayed,[1] post-immunotherapy irAE are rarely described and potentially under-recognized. In 2013, two cases were reported in abstract form in Deutschen Dermatologischen Gesellschaft.[2] In July 2018 a case of autoimmune hepatitis eight months post-immunotherapy was reported in The Oncologist[3] and a dermatologic series appeared online in JAMA Dermatology.[4] With expanding indications for IO and an increasing number of clinical trials in the curative-neoadjuvant setting, larger numbers of patients are being treated in earlier stages of disease and often for short courses. Given …


Mv-626, A Potent And Selective Inhibitor Of Enpp1 Enhances Sting Activation And Augments T-Cell Mediated Anti-Tumor Activity In Vivo, Jason Baird, Gregory Dietsch, Vincent Florio, Michael Gallatin, Clayton Knox, Joshua Odingo, Marka Crittenden, Michael J. Gough Nov 2018

Mv-626, A Potent And Selective Inhibitor Of Enpp1 Enhances Sting Activation And Augments T-Cell Mediated Anti-Tumor Activity In Vivo, Jason Baird, Gregory Dietsch, Vincent Florio, Michael Gallatin, Clayton Knox, Joshua Odingo, Marka Crittenden, Michael J. Gough

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: STING is an endogenous sensor of cGAMP, which is synthesized by cGAS following detection of cytoplasmic DNA. STING activation leads to interferon production and activation of inflammatory pathways that facilitate cytolytic T cell priming. STING agonists administered intratumorally show potent anti-tumor efficacy in a range of preclinical models; several agonists are in clinical development. Radiation therapy also increases cytoplasmic DNA levels in cancer cells, resulting in STING activation and secretion of inflammatory cytokines. Ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) is the phosphodiesterase that negatively regulates STING by hydrolyzing cGAMP. MV-626, a highly potent and selective ENPP1 inhibitor with 100% oral bioavailability …


Inducible T Cell Co-Stimulator (Icos) Is Upregulated On Lymphocytes Following Radiation Of Tumors And Icos Agonism In Combination With Radiation Results In Enhanced Tumor Control, Michael J. Gough, Shelly Bambina, Monica Gostissa, Christopher Harvey, David Friedman, Marka R Crittenden Nov 2018

Inducible T Cell Co-Stimulator (Icos) Is Upregulated On Lymphocytes Following Radiation Of Tumors And Icos Agonism In Combination With Radiation Results In Enhanced Tumor Control, Michael J. Gough, Shelly Bambina, Monica Gostissa, Christopher Harvey, David Friedman, Marka R Crittenden

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Radiation and co-stimulatory ligands or checkpoint inhibitors have demonstrated improved anti-tumor immunity and overall survival in preclinical animal studies. However, the results of human trials suggest we have not yet found the optimal combination. Here we demonstrate upregulation of ICOS expression on T cells following focal tumor radiation and test the hypothesis that ICOS agonism in combination with radiation will enhance the immunologic effect of radiation resulting in increased survival.

Methods: BALB/c mice bearing CT26 tumors or C57BL/6 mice bearing Panc02 tumors were treated at d14 with 20Gy CT guided radiation therapy and anti-ICOS antibody or isotype control antibody …


Pegzilarginase In Combination With Agonist Anti-Ox40 Therapy Enhances T Cell Priming And Effector Function Leading To Improved Tumor Regression And Survival, Melissa Kasiewicz, Annah Rolig, Elizabeth Sturgill, Mark Badeaux, Scott Rowlinson, William L. Redmond Nov 2018

Pegzilarginase In Combination With Agonist Anti-Ox40 Therapy Enhances T Cell Priming And Effector Function Leading To Improved Tumor Regression And Survival, Melissa Kasiewicz, Annah Rolig, Elizabeth Sturgill, Mark Badeaux, Scott Rowlinson, William L. Redmond

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Tumor cells defective in enzymes required for arginine biosynthesis are dependent upon arginine uptake from the environment. Extracellular depletion of arginine directly affects tumor cells, inducing autophagy and apoptosis. Pegzilarginase (AEB1102) is a bioengineered, pegylated, human arginase 1 (Aeglea Biotherapeutics) currently in phase I clinical trials. This arginine-depleting agent has been shown to both inhibit arginine auxotrophic tumor growth and to enhance the efficacy of PD-L1 blockade in preclinical models. In the current study, we investigated the therapeutic efficacy and mechanism of action of combined pegzilarginase/anti-OX40 (aOX40) immunotherapy. We hypothesized that pegzilarginase/aOX40 treatment would synergize to enhance T cell …


Tumor Infiltrating Lymphocyte Recruitment After Peri-Lymphatic Irx-2 Cytokine Immunotherapy In Resectable Breast Cancer And Head And Neck Carcinoma, Joanna Pucilowska, Venkatesh Rajamanickam, Nikki Moxon, Monil Shah, Maritza Martel, Alison Conlin, James E. Egan, David B. Page Nov 2018

Tumor Infiltrating Lymphocyte Recruitment After Peri-Lymphatic Irx-2 Cytokine Immunotherapy In Resectable Breast Cancer And Head And Neck Carcinoma, Joanna Pucilowska, Venkatesh Rajamanickam, Nikki Moxon, Monil Shah, Maritza Martel, Alison Conlin, James E. Egan, David B. Page

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: The IRX-2 biologic is a subcutaneous injectable immunotherapy composed of IL-2 and other cytokines derived from stimulated lymphocytes. Preclinically, IRX-2 activates T cells, natural killer cells, macrophages, and dendritic cells, and facilitates maturation of antigen-presenting cells.Tumor-infiltrating lymphocytes (TILs) are associated with improved outcomes in many cancers including early stage breast cancer (ESBC) and head and neck squamous cell carcinoma (HNSCC). We report data on TIL recruitment associated with pre-operative IRX-2 in a phase Ib ESBC trial, as well as phase Ib and IIa HNSCC trials.

Methods: The pre-operative IRX-2 regimen was evaluated in both ESBC and HNSCC trials for …


Open-Source Digital Image Analysis Of Whole-Slide Multiplex Immunohistochemistry, Nikhil Lonberg, Carmen Ballesteros-Merino, Shawn Jensen, Bernard A Fox Nov 2018

Open-Source Digital Image Analysis Of Whole-Slide Multiplex Immunohistochemistry, Nikhil Lonberg, Carmen Ballesteros-Merino, Shawn Jensen, Bernard A Fox

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Successful digital image analysis (DIA) of cancer tissue is accurate and reproducible. These points of emphasis have brought procedures like the tissue microarray (TMA) and hotspot regions of interest (ROI) under scrutiny. The nature in which a pathologist selects TMAs and ROIs is conducive to bias. Whole Slide Imaging (WSI) offers a solution in its unbiased region selection and consideration of a larger tissue sample. However, options for softwares that can handle such large throughput are scarce. Additionally, while multiplex immunohistochemistry (mIHC) is becoming popular [1], documentation of its digital analysis tools remains minimal [2]. The combination of these …


Integrative Spatially-Resolved, High-Plex Digital Profiling Enables Characterization Of Complex Immune Biology In The Tumor Microenvironment Of Mesothelioma, Carmen Ballesteros-Merino, Moritz Widmaier, Sarah Church, Thomas Herz, Alexei Budco, Das Medrikova, Ivan Kanchev, Andrew White, Douglas Hinerfeld, Shawn Jensen, John Handy, Rachel Sanborn, Carlo Bifulco, Sarah Warren, Joseph Beechem, Bernard .. Fox Nov 2018

Integrative Spatially-Resolved, High-Plex Digital Profiling Enables Characterization Of Complex Immune Biology In The Tumor Microenvironment Of Mesothelioma, Carmen Ballesteros-Merino, Moritz Widmaier, Sarah Church, Thomas Herz, Alexei Budco, Das Medrikova, Ivan Kanchev, Andrew White, Douglas Hinerfeld, Shawn Jensen, John Handy, Rachel Sanborn, Carlo Bifulco, Sarah Warren, Joseph Beechem, Bernard .. Fox

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Malignant mesothelioma is an aggressive cancer with poor prognosis and few effective therapies. Since mesothelioma is derived from the mesothelium of the lung, we hypothesize that immune cells in the tumor microenvironment (TME) may behave differently than other solid tumors. In our previous studies, utilizing multi-plexed immunofluorescence, we did not find immune phenotypes associated with improved patient survival. Here we describe a novel combination of two technologies to spatially characterize the interface between mesothelioma cells, stroma and immune cells in the TME in a high-plex capacity.

Methods: Ten FFPE mesothelioma tumors were characterized by Definiens’ Immune-Oncology Profiling (IOP) and …


Single Cell Sequencing To Identify Tcrs That Recognize Autologous Tumor Cells After Vaccination With Allogeinic Dribble Vaccine, Hong-Ming Hu, Christopher C. Paustian, Zhifa Wen, Tarsem L. Moudgil, Traci L. Hilton, Sam Bookhardt, Guangjie Yu, Eric Tran, Venkatesh Rajamanickam, Walter Urba, Rachel E. Sanborn, Bernard A. Fox Nov 2018

Single Cell Sequencing To Identify Tcrs That Recognize Autologous Tumor Cells After Vaccination With Allogeinic Dribble Vaccine, Hong-Ming Hu, Christopher C. Paustian, Zhifa Wen, Tarsem L. Moudgil, Traci L. Hilton, Sam Bookhardt, Guangjie Yu, Eric Tran, Venkatesh Rajamanickam, Walter Urba, Rachel E. Sanborn, Bernard A. Fox

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Adoptive immunotherapy with tumor-specific TCR gene-modified T cells has the potential to eradicate bulky disease. Traditional methods of TCR identification require lengthy in vitro culture to generate clonal T-cell populations, which adds time and complexity to this promising therapy. Here we described a simplified and reliable method to identify TCRs by single cell TCR sequencing of cells sorted with antibodies against T-cell surface markers that are up-regulated only when they are stimulated with specific tumor cell antigens.

Methods: A tumor-infiltrating lymphocyte (TIL) culture with T cells reactive against autologous tumor was generated from a brain metastasis of a patients …


Combined Anti-Pd-1 And Anti-Lag-3 Checkpoint Blockade Enhances Cd8+ Til Effector Function While Reducing Tregs Leading To Reduced Immune Suppression And Improved Overall Survival, Elizabeth Sturgill, Courtney Mick, David Jenkins, Johanna Kaufmann, William L. Redmond Nov 2018

Combined Anti-Pd-1 And Anti-Lag-3 Checkpoint Blockade Enhances Cd8+ Til Effector Function While Reducing Tregs Leading To Reduced Immune Suppression And Improved Overall Survival, Elizabeth Sturgill, Courtney Mick, David Jenkins, Johanna Kaufmann, William L. Redmond

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Checkpoint inhibition is a potent strategy to reinvigorate T cells. However, aCTLA-4 or aPD-1 monotherapy has not been effective for the majority of patients, resulting in the exploration of combinatorial approaches to improve treatment efficacy. One such target is LAG-3, which is upregulated on T cells that have experienced repeated antigen exposure, such as in the tumor microenvironment (TME), and is associated with reduced T cell effector function. In addition, high LAG-3 expression on regulatory T cells (Tregs) has been reported for patients with varying cancer types, providing an additional rationale for targeting LAG-3 with the aim of reducing …


Preliminary Evaluation Of A Novel Whole Slide Multispectral Assessment Of Seven Markers: Potential To Minimize Bias In The Characterization Of The Tumor Immune Environment, Carmen Ballesteros Merino, Shawn Jensen, Carla Coltharp, Kristin Roman, Chichung Wang, Nikhil Lonberg, Sebastian Marwitz, Tarsem Moudgil, William Miller, William Redmond, Yoshinobu Koguchi, Carlo Bifulco, Clifford Hoyt, Bernard A. Fox Nov 2018

Preliminary Evaluation Of A Novel Whole Slide Multispectral Assessment Of Seven Markers: Potential To Minimize Bias In The Characterization Of The Tumor Immune Environment, Carmen Ballesteros Merino, Shawn Jensen, Carla Coltharp, Kristin Roman, Chichung Wang, Nikhil Lonberg, Sebastian Marwitz, Tarsem Moudgil, William Miller, William Redmond, Yoshinobu Koguchi, Carlo Bifulco, Clifford Hoyt, Bernard A. Fox

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: PD-L1 expression and tumor-mutational burden enrich for patients that respond to checkpoint blockade, but these evaluations are only a component of the entire story. Recently, our lab reported that evaluation of specific cell-cell relationships provided a powerful biomarker for overall survival in patients with HPV- head and neck cancer (HNSCC). However, the areas selected for analysis were operator selected “hot spots”. This approach introduces the potential for unconscious bias in the selection process. To address this, we have sought to perform whole slide evaluations of sections to compare with hot spot analysis. This study is a preliminary report applying …


Nktr-214 (Cd122-Biased Agonist) And Nktr-262 (Tlr7/8 Agonist) Combination Treatment Pairs Local Innate Immune Activation With Systemic Cd8+ T Cell Expansion To Enhance Anti-Tumor Immunity, Annah S. Rolig, Daniel Rose, Saul Kivimäe, Deborah Charych, Werner Rubas, Jonathan Zalevsky, William L. Redmond Nov 2018

Nktr-214 (Cd122-Biased Agonist) And Nktr-262 (Tlr7/8 Agonist) Combination Treatment Pairs Local Innate Immune Activation With Systemic Cd8+ T Cell Expansion To Enhance Anti-Tumor Immunity, Annah S. Rolig, Daniel Rose, Saul Kivimäe, Deborah Charych, Werner Rubas, Jonathan Zalevsky, William L. Redmond

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Radiation therapy (RT) remains the standard of care for many human cancers. Combining NKTR-214, a CD122-biased cytokine agonist conjugated with releasable polyethylene-glycol (PEG) chains, with local RT significantly enhanced therapeutic efficacy in preclinical models. Mechanistically, NKTR-214 provides sustained signaling through the IL-2 receptor pathway (IL-2Rβγ) to preferentially activate and expand effector CD8+ T and NK cells and RT modulates the tumor microenvironment (TME) to induce antigen-release. Together, NKTR-214/RT treatment resulted in improved therapeutic responses compared to either treatment alone. However, abscopal responses in murine tumors were modest, leading us to explore alternative approaches with the potential to elicit more …


Mertk Is A Therapeutic Target In Combination With Radiation To Promote Adaptive Immune Tumor Responses, Garth Tormoen, Jason R Baird, Gwen Kramer, Shelly Bambina, Marka R Crittenden, Michael J. Gough Nov 2018

Mertk Is A Therapeutic Target In Combination With Radiation To Promote Adaptive Immune Tumor Responses, Garth Tormoen, Jason R Baird, Gwen Kramer, Shelly Bambina, Marka R Crittenden, Michael J. Gough

Society for Immunotherapy of Cancer 2018 Annual Meeting Posters

Background: Mertk is a member of the Tyro3-Axl-Mertk (TAM) family of receptors and regulates phagocytosis of dying cells by macrophages. Cancer cells killed by radiation therapy direct repolarization of macrophages into immune suppressive phenotypes. Mertk-/- mice grafted with immunogenic tumors have enhanced tumor control following ionizing radiation compared to Mertkwt mice. Gas6 is the endogenous ligand for Mertk and its ability to signal through Mertk requires a post-translational vitamin k-dependent modification that is inhibited by warfarin.

Methods: Mertk-/- and WT mice were injected subcutaneously in the flank with 5E4 CT26 cells (BALB/c) or 5E6 Panc02-SIY cells (C57BL/6) and allowed to …


Biological Therapy In The Treatment Of Melanoma, Simona Roxana Georgescu, Mihaela Roxana Ioghen, Maria Isabela Sarbu, Alexandra-Florentina Ion, Ela Ghita, Cristina-Iulia Mitran, Madalina-Irina Mitran, Vasile Benea, Mircea Tampa Oct 2018

Biological Therapy In The Treatment Of Melanoma, Simona Roxana Georgescu, Mihaela Roxana Ioghen, Maria Isabela Sarbu, Alexandra-Florentina Ion, Ela Ghita, Cristina-Iulia Mitran, Madalina-Irina Mitran, Vasile Benea, Mircea Tampa

Journal of Mind and Medical Sciences

Melanoma is one of the most aggressive tumors and its incidence is on the rise. The low rates of survival in metastatic melanoma has led to the development of new drugs for this type of patient, such as biological therapy which has shown remarkable results. This therapy is based on stimulation of the immune system to fight tumoral cells through: injection of cytokines with immunomodulatory properties (interleukin-2, alpha-interferon), vaccination with tumor antigens or immune cells that process tumor antigens, adoptive immunotherapy, inhibition of immune checkpoints (PD-1, CTLA-4), inhibition or stimulation of immune modulator molecules (OX-40, LAG-3), inhibition of signaling pathways …


Intestinal Barrier Tightening By A Cell-Penetrating Antibody To Bin1, A Candidate Target For Immunotherapy Of Ulcerative Colitis., Sunil Thomas, Kevther Hoxha, Walker Alexander, John Gilligan, Rima Dilbarova, Kelly Whittaker, Andrew Kossenkov, George C. Prendergast, James M. Mullin Sep 2018

Intestinal Barrier Tightening By A Cell-Penetrating Antibody To Bin1, A Candidate Target For Immunotherapy Of Ulcerative Colitis., Sunil Thomas, Kevther Hoxha, Walker Alexander, John Gilligan, Rima Dilbarova, Kelly Whittaker, Andrew Kossenkov, George C. Prendergast, James M. Mullin

Kimmel Cancer Center Papers, Presentations, and Grand Rounds

Patients afflicted with ulcerative colitis (UC) are at increased risk of colorectal cancer. While its causes are not fully understood, UC is associated with defects in colonic epithelial barriers that sustain inflammation of the colon mucosa caused by recruitment of lymphocytes and neutrophils into the lamina propria. Based on genetic evidence that attenuation of the bridging integrator 1 (Bin1) gene can limit UC pathogenicity in animals, we have explored Bin1 targeting as a therapeutic option. Early feasibility studies in the dextran sodium sulfate mouse model of experimental colitis showed that administration of a cell-penetrating Bin1 monoclonal antibody (Bin1 mAb 99D) …


Neurological Complications Of Immune Checkpoint Inhibitors: What Happens When You 'Take The Brakes Off' The Immune System., Marinos Dalakas Sep 2018

Neurological Complications Of Immune Checkpoint Inhibitors: What Happens When You 'Take The Brakes Off' The Immune System., Marinos Dalakas

Department of Neurology Faculty Papers

Patients with advanced malignancies treated with immune checkpoint inhibitors are at increased risk for developing immune-related neurological complications. It is a phenomenon of immunological twist when immunotherapy against co-stimulatory molecules activates previously normal T cells to kill tumor cells but, in so doing, the T cells become unrestrained, triggering other autoimmune diseases for which conventional immunotherapy is needed. The most common autoimmune neurological diseases, usually occurring within 2-12 weeks after immune checkpoint inhibitor initiation, include: inflammatory myopathies, myasthenia gravis, acute and chronic demyelinating polyradiculoneuropathies, vasculitic neuropathies, isolated cranial neuropathies, aseptic meningitis, autoimmune encephalitis, multiple sclerosis and hypophysitis. The neurological events …


Listeria Monocytogenes As A Vector For Cancer Immunotherapy: Current Understanding And Progress, John C. Flickinger, Ulrich Rodeck, Adam E. Snook Sep 2018

Listeria Monocytogenes As A Vector For Cancer Immunotherapy: Current Understanding And Progress, John C. Flickinger, Ulrich Rodeck, Adam E. Snook

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Listeria monocytogenes, a Gram-positive facultative anaerobic bacterium, is becoming a popular vector for cancer immunotherapy. Indeed, multiple vaccines have been developed utilizing modified Listeria as a tool for generating immune responses against a variety of cancers. Moreover, over a dozen clinical trials testing Listeria cancer vaccines are currently underway, which will help to understand the utility of Listeria vaccines in cancer immunotherapy. This review aims to summarize current views on how Listeria-based vaccines induce potent antitumor immunity and the current state of Listeria-based cancer vaccines in clinical trials. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.


Unleashing Endogenous Tnf-Alpha As A Cancer Immunotherapeutic., Steven F Josephs, Thomas E Ichim, Stephen M Prince, Santosh Kesari, Francesco M Marincola, Anton Rolando Escobedo, Amir Jafri Aug 2018

Unleashing Endogenous Tnf-Alpha As A Cancer Immunotherapeutic., Steven F Josephs, Thomas E Ichim, Stephen M Prince, Santosh Kesari, Francesco M Marincola, Anton Rolando Escobedo, Amir Jafri

Articles, Abstracts, and Reports

Tumor necrosis factor (TNF)-alpha was originally identified in the 1970s as the serum mediator of innate immunity capable of inducing hemorrhagic necrosis in tumors. Today, a wide spectrum of biological activities have been attributed to this molecule, and clinical translation has mainly occurred not in using it to treat cancer, but rather to inhibit its effects to treat autoimmunity. Clinical trials utilizing systemic TNF-alpha administration have resulted in an unacceptable level of toxicities, which blocked its development. In contrast, localized administration of TNF-alpha in the form of isolated limb perfusion have yielded excellent results in soft tissue sarcomas. Here we …


Perspectives In Melanoma: Meeting Report From The Melanoma Bridge (30 November-2 December, 2017, Naples, Italy)., Paolo A Ascierto, Igor Puzanov, Sanjiv S Agarwala, Carlo Bifulco, Gerardo Botti, Corrado Caracò, Gennaro Ciliberto, Michael A Davies, Reinhard Dummer, Soldano Ferrone, Thomas F Gajewski, Claus Garbe, Jason J Luke, Francesco M Marincola, Giuseppe Masucci, Janice M Mehnert, Nicola Mozzillo, Giuseppe Palmieri, Michael A Postow, Stephen P Schoenberger, Ena Wang, Magdalena Thurin Jul 2018

Perspectives In Melanoma: Meeting Report From The Melanoma Bridge (30 November-2 December, 2017, Naples, Italy)., Paolo A Ascierto, Igor Puzanov, Sanjiv S Agarwala, Carlo Bifulco, Gerardo Botti, Corrado Caracò, Gennaro Ciliberto, Michael A Davies, Reinhard Dummer, Soldano Ferrone, Thomas F Gajewski, Claus Garbe, Jason J Luke, Francesco M Marincola, Giuseppe Masucci, Janice M Mehnert, Nicola Mozzillo, Giuseppe Palmieri, Michael A Postow, Stephen P Schoenberger, Ena Wang, Magdalena Thurin

Articles, Abstracts, and Reports

Metastatic melanoma represents a challenging clinical situation and, until relatively recently, there was an absence of effective treatment options. However, in 2011, the advanced melanoma treatment landscape was revolutionised with the approval of the anti-cytotoxic T-lymphocyte-associated protein-4 checkpoint inhibitor ipilimumab and the selective BRAF kinase inhibitor vemurafenib, both of which significantly improved overall survival. Since then, availability of new immunotherapies, especially the anti-programmed death-1 checkpoint inhibitors, as well as other targeted therapies, have further improved outcomes for patients with advanced melanoma. Seven years on from the first approval of these novel therapies, evidence for the use of various immune-based and …


Perspectives In Immunotherapy: Meeting Report From The Immunotherapy Bridge (29-30 November, 2017, Naples, Italy)., Paolo A Ascierto, James Brugarolas, Luigi Buonaguro, Lisa H Butterfield, David Carbone, Bruno Daniele, Robert Ferris, Bernard A Fox, Jérôme Galon, Cesare Gridelli, Howard L Kaufman, Christopher A Klebanoff, Ignacio Melero, Paul Nathan, Chrystal M Paulos, Marco Ruella, Ryan Sullivan, Hassane Zarour, Igor Puzanov Jul 2018

Perspectives In Immunotherapy: Meeting Report From The Immunotherapy Bridge (29-30 November, 2017, Naples, Italy)., Paolo A Ascierto, James Brugarolas, Luigi Buonaguro, Lisa H Butterfield, David Carbone, Bruno Daniele, Robert Ferris, Bernard A Fox, Jérôme Galon, Cesare Gridelli, Howard L Kaufman, Christopher A Klebanoff, Ignacio Melero, Paul Nathan, Chrystal M Paulos, Marco Ruella, Ryan Sullivan, Hassane Zarour, Igor Puzanov

Articles, Abstracts, and Reports

Immunotherapy represents the third important wave in the history of the systemic treatment of cancer after chemotherapy and targeted therapy and is now established as a potent and effective treatment option across several cancer types. The clinical success of anti-cytotoxic T-lymphocyte-associated antigen (CTLA)-4, first, and anti-programmed death (PD)-1/PD-ligand (L)1 agents in melanoma and other cancers a few years later, has encouraged increasing focus on the development of other immunotherapies (e.g. monoclonal antibodies with other immune targets, adoptive cell transfer, and vaccines), with over 3000 immuno-oncology trials ongoing, involving hundreds of research institutes across the globe. The potential use of these …


Tumors Interrupt Irf8-Mediated Dendritic Cell Development To Overcome Immune Surveillance, Melissa Ann Meyer May 2018

Tumors Interrupt Irf8-Mediated Dendritic Cell Development To Overcome Immune Surveillance, Melissa Ann Meyer

Arts & Sciences Electronic Theses and Dissertations

Tumors employ multiple mechanisms to evade immune surveillance. One mechanism is tumor-induced myelopoiesis, which expands immune suppressive granulocytes and monocytes to create a protective tumor niche shielding even antigenic tumors. As myeloid cells and immune-stimulatory conventional dendritic cells (cDCs) are derived from the same progenitors, it is logical that tumor-induced myelopoiesis might also impact cDC development. The cDC subset cDC1 is marked by CD141 in humans and CD103 or CD8α in mice. cDC1s act by cross presenting antigen and activating CD8+ T cells. Given these functions, CD103+ cDC1s can support anti-tumor CD8+ T cell responses. However, CD103+ cDC1 numbers are …


Quantification Of Tumor-Associated Macrophages Following Immunomodulation Therapy In A Murine Allograft Model Of Colorectal Carcinoma, Caroline Spainhour May 2018

Quantification Of Tumor-Associated Macrophages Following Immunomodulation Therapy In A Murine Allograft Model Of Colorectal Carcinoma, Caroline Spainhour

Biomedical Engineering Undergraduate Honors Theses

Colorectal Carcinoma (CRC) is one of the deadliest cancers in the world, with 150,000 new cases annually in the United States. Traditional treatments include chemotherapy and invasive surgery; however, research has shown that only 25% of patients that undergo traditional treatment have a positive result. Immunotherapy is an emerging form of cancer treatment that utilizes the patients’immune system to fight cancer cells by targeting inflammation, which plays a large role in the proliferation and metastasis of cancer cells.

Tumor-associated macrophages (TAMs) are immune cells that affect the inflammatory microenvironment of tumors. TAMs are M1 in the early stages of tumors, …


Oncolog, Volume 63. Number 03, March 2018, Bryan Tutt Mar 2018

Oncolog, Volume 63. Number 03, March 2018, Bryan Tutt

OncoLog MD Anderson's Report to Physicians (All issues)

  • Local Consolidative Therapy Plus Immunotherapy or Targeted Agents for NSCLC: Clinical trials explore surgery/radiation plus immune checkpoint or tyrosine kinase inhibitors for metastatic non-small cell lung cancer
  • INBRIEF: CAR T Cells Elicit Durable Responses in Large B Cell Lymphoma
  • Managing Opioid Use in Cancer Patients: Vigilance and interventions ensure patient safety
  • Hepatitis C Virus Linked to Head and Neck Cancers: Association of HCV with extrahepatic cancers has implications for HCV testing, treatment
  • HOUSE CALL: Understanding cancer Risk and Risk factors-Your risk factors might affect your need for cancer screening