Medical Specialties Commons^™

Neoadjuvant With Low-Dose Radiotherapy, Tislelizumab, Albumin-Bound Paclitaxel, And Cisplatin For Resectable Locally Advanced Head And Neck Squamous Cell Carcinoma: Phase Ii Single-Arm Trial, Zhigang Liu, Dong Wang, Guanjun Li, Muhua Yi, Zhaoyuan Zhang, Guihua Zhong, Liangfu Xu, Rong Jiang, Yannan Zheng, Linxuan Huang, Yingpeng Peng, Lizhong Liang, Jianpeng Li, Ye Liu, Jun Lai, Xianjuan Lv, Yongqiang Xu, Qiaodan Liu, Zhiqiang Wang, Zhutian Liu, Qinan Yang, Li Nie, Jiao Lei, Xiaotao Huang, Zhijie Liu, Wen Jiang

Faculty, Staff and Student Publications

Although pathological complete response (pCR) and major pathological response (MPR) rates of neoadjuvant immunotherapy combined with chemotherapy in head and neck squamous cell carcinoma (HNSCC) trials remain suboptimal, emerging evidence highlights the synergistic potential of combining low-dose radiotherapy with immunotherapy to promote the efficacy of immunotherapy. This phase II, open-label, single-arm, multicenter trial (NCT05343325) enrolled 28 patients with untreated stage III-IVB HNSCC (NeoRTPC02). Patients received neoadjuvant low-dose radiotherapy, the programmed death-1 (PD-1) inhibitor tislelizumab, albumin-bound paclitaxel, and cisplatin for two cycles, followed by radical resection ~4 weeks after treatment completion. The primary endpoint, pCR rate, was achieved in 14 of …

Detection Of Chromosomal Mosaicism- The Importance Of Karyotyping And Fish, Allison Kalinousky, Jennifer L. Roberts, Madeeha Alikhan, John Herriges, Lei Zhang, Elena Repnikova

Research Days

This project evaluates the prevalence of chromosomal mosaicism in constitutional samples using conventional cytogenetic techniques evaluated at Children's Mercy Hospital during a 20-year period.

High Kynu Expression Is Associated With Poor Prognosis, Keap1/Stk11 Mutations, And Immunosuppressive Metabolism In Patient-Derived But Not Murine Lung Adenocarcinomas, Ling Cai, Thomas J Rogers, Reza Mousavi Jafarabad, Hieu Vu, Chendong Yang, Nicole Novaresi, Ana Galán-Cobo, Luc Girard, Edwin J Ostrin, Johannes F Fahrmann, Jiyeon Kim, John V Heymach, Kathryn A O'Donnell, Guanghua Xiao, Yang Xie, Ralph J Deberardinis, John D Minna

Faculty, Staff and Student Publications

Background/Objectives: We aimed to discover genes with bimodal expression linked to patient outcomes, to reveal underlying oncogenotypes and identify new therapeutic insights in lung adenocarcinoma (LUAD).

Methods: We performed meta-analysis to screen LUAD datasets for prognostic genes with bimodal expression patterns. Kynureninase (KYNU), a key enzyme in tryptophan catabolism, emerged as a top candidate. We then examined its relationship with LUAD mutations, metabolic alterations, immune microenvironment states, and expression patterns in human and mouse models using bulk and single-cell transcriptomics, metabolomics, and preclinical model datasets. Pan-cancer prognostic associations were also assessed.

Results: Model-based clustering of KYNU expression outperformed median-based dichotomization …

The Lung Cancer Autochthonous Model Gene Expression Database Enables Cross-Study Comparisons Of The Transcriptomic Landscapes Across Mouse Models, Ling Cai, Fangjiang Wu, Qinbo Zhou, Ying Gao, Bo Yao, Ralph J Deberardinis, George K Acquaah-Mensah, Vassilis Aidinis, Jennifer E Beane, Shyam Biswal, Ting Chen, Carla P Concepcion-Crisol, Barbara M Grüner, Deshui Jia, Robert A Jones, Jonathan M Kurie, Min Gyu Lee, Per Lindahl, Yonathan Lissanu, Corina Lorz, David Macpherson, Rosanna Martinelli, Pawel K Mazur, Sarah A Mazzilli, Shinji Mii, Herwig P Moll, Roger A Moorehead, Edward E Morrisey, Sheng Rong Ng, Matthew G Oser, Arun R Pandiri, Charles A Powell, Giorgio Ramadori, Mirentxu Santos, Eric L Snyder, Rocio Sotillo, Kang-Yi Su, Tetsuro Taki, Kekoa Taparra, Phuoc T Tran, Yifeng Xia, J Edward Van Veen, Monte M Winslow, Guanghua Xiao, Charles M Rudin, Trudy G Oliver, Yang Xie, John D Minna

Faculty, Staff and Student Publications

Lung cancer, the leading cause of cancer mortality, exhibits diverse histological subtypes and genetic complexities. Numerous preclinical mouse models have been developed to study lung cancer, but data from these models are disparate, siloed, and difficult to compare in a centralized fashion. In this study, we established the Lung Cancer Autochthonous Model Gene Expression Database (LCAMGDB), an extensive repository of 1,354 samples from 77 transcriptomic datasets covering 974 samples from genetically engineered mouse models (GEMMs), 368 samples from carcinogen-induced models, and 12 samples from a spontaneous model. Meticulous curation and collaboration with data depositors produced a robust and comprehensive database, …

G-Quadruplex Stabilizer Cx-5461 Effectively Combines With Radiotherapy To Target Α-Thalassemia/Mental Retardation X-Linked-Deficient Malignant Glioma, Sharvari Dharmaiah, Prit Benny Malgulwar, William E Johnson, Brandon A Chen, Vladislav Sharin, Benjamin T Whitfield, Christian Alvarez, Vasudev Tadimeti, Ahsan S Farooqi, Jason T Huse

Faculty, Staff and Student Publications

Background: Inactivation of α-thalassemia/mental retardation X-linked (ATRX) represents a defining molecular feature in large subsets of malignant glioma. ATRX deficiency gives rise to abnormal G-quadruplex (G4) DNA secondary structures, enhancing replication stress and genomic instability. Building on earlier work, we evaluated the extent to which pharmacological G4 stabilization selectively enhances DNA damage and cell death in ATRX-deficient preclinical glioma models.

Methods: Using the G4 stabilizer CX-5461, we treated patient-derived glioma stem cells (GSCs) in vitro and GSC flank and intracranial murine xenografts in vivo to evaluate efficacy as both a single agent and in combination with ionizing radiation (IR), the …

Long-Term Efficacy Of Pembrolizumab And The Clinical Utility Of Ctdna In Locally Advanced Dmmr/Msi-H Solid Tumors, Michael Lapelusa, Wei Qiao, Bryan Iorgulescu, Francis San Lucas, Keyur Patel, Deepak Bhamidipati, Jane Varkey Thomas, Nancy You, Wai Chin Foo, Dipen Maru, Selvi Thirumurthi, Van Morris, Scott Kopetz, Michael Overman, Kaysia Ludford

Faculty, Staff and Student Publications

Neoadjuvant immunotherapy can induce pathologic complete response (pCR) in patients with localized deficient mismatch repair (dMMR)/microsatellite instability-high (MSI-H) tumors. The long-term outcomes of these patients are unknown, as is the clinical utility of measuring circulating tumor DNA (ctDNA). Follow-up was evaluated in patients enrolled in a phase II trial (NCT04082572) that evaluated the efficacy and safety of pembrolizumab in patients with localized dMMR/MSI-H tumors. The primary outcomes of this trial have previously been reported. 3-year EFS and OS rates were 80% (95% CI: 66% - 93%) and 94% (95% CI: 86% - 100%). Patients without detectable ctDNA after pembrolizumab had …

Ubiquitin-Conjugating Enzyme Ube2n Modulates Proteostasis In Immunoproteasome-Positive Acute Myeloid Leukemia, Chiharu Ishikawa, Laura Barreyro, Avery M Sampson, Kathleen M Hueneman, Kwangmin Choi, Sophia Y Philbrook, Issac Choi, Lyndsey C Bolanos, Mark Wunderlich, Andrew G Volk, Stephanie S Watowich, Kenneth D Greis, Daniel T Starczynowski

Faculty, Staff and Student Publications

Altered protein homeostasis through proteasomal degradation of ubiquitinated proteins is a hallmark of many cancers. Ubiquitination, coordinated by E1, E2, and E3 enzymes, involves up to 40 E2-conjugating enzymes in humans to specify substrates and ubiquitin linkages. In a screen for E2 dependencies in acute myeloid leukemia (AML), ubiquitin conjugating enzyme E2 N (UBE2N) emerged as the top candidate. To investigate UBE2N's role in AML, we characterized an enzymatically defective mouse model of UBE2N, revealing UBE2N's requirement in AML without an impact on normal hematopoiesis. Unlike other E2s, which mediate lysine-48 (K48) polyubiquitination and degradation of proteins, UBE2N primarily synthesizes …

Immunotherapy With Nebulized Pattern Recognition Receptor Agonists Restores Severe Immune Paralysis And Improves Outcomes In Mice With Influenza-Associated Pulmonary Aspergillosis, Jezreel Pantaleón García, Sebastian Wurster, Nathaniel D Albert, Uddalak Bharadwaj, Keerthi Bhoda, Vikram K Kulkarni, Mbaya Ntita, Paris Rodríguez Carstens, Madeleine Burch-Eapen, Daniela Covarrubias López, Jania Foncerrada Lizaola, Katherine E Larsen, Lauren M Matula, Seyed J Moghaddam, Yongxing Wang, Dimitrios P Kontoyiannis, Scott E Evans

Faculty, Staff and Student Publications

Influenza-associated pulmonary aspergillosis (IAPA) is a potentially deadly superinfection in patients with influenza pneumonia, especially those with severe disease, underlying immunosuppression, corticosteroid therapy, or requiring intensive care support. Given the high mortality of IAPA, adjunct immunomodulatory strategies remain a critical unmet need. Previously, the desensitization of pattern recognition pathways has been described as a hallmark of IAPA pathogenesis and a predictor of mortality in IAPA patients. Therefore, we studied the impact of nebulized Toll-like receptor 2/6/9 agonists Pam2 CSK4 (Pam2) and CpG oligodeoxynucleotides (ODNs) on infection outcomes and pulmonary immunopathology in a corticosteroid-immunosuppressed murine IAPA model. Mice with IAPA receiving …

Forward Genetic Screen In Zebrafish Identifies New Fungal Regulators That Limit Host-Protective Candida-Innate Immune Interaction, Bailey A Blair, Emma Bragdon, Gursimran Dhillon, Nnamdi Baker, Lena Stasiak, Mya Muthig, Pedro Miramon, Michael C Lorenz, Robert T Wheeler

Faculty, Staff and Student Publications

Candida is one of the most frequent causes of bloodstream infections, and our first line of defense against these invasive infections is the innate immune system. The early immune response is critical in controlling Candida albicans infection, but C. albicans has several strategies to evade host immune attack. Phagocytosis of C. albicans blocks hyphal growth, limiting host damage and virulence, but how C. albicans limits early recruitment and phagocytosis in vertebrate infection is poorly understood. To study innate immune evasion by intravital imaging, we utilized the transparent larval zebrafish infection model to screen 131 C. albicans mutants for altered …

Clinical And Fundamental Research Progressions On Tumor-Infiltrating Lymphocytes Therapy In Cancer, Jiandong Hu, Mengli Jin, Weihong Feng, Barbara Nassif-Rausseo, Alexandre Reuben, Chunhua Ma, Gregory Lizee, Fenge Li

Faculty, Staff and Student Publications

Malignant tumors represent a significant threat to human health. Among the various therapeutic strategies available, cancer immunotherapy-encompassing adoptive cell transfer (ACT) and immune checkpoint blockade therapy-has emerged as a particularly promising approach following surgical resection, radiotherapy, chemotherapy, and molecular targeted therapies. This form of treatment elicits substantial antigen-specific immune responses, enhances or restores anti-tumor immunity, thereby facilitating the control and destruction of tumor cells, and yielding durable responses across a range of cancers, which can lead to the eradication of tumor lesions and the prevention of recurrence. Tumor-infiltrating lymphocytes (TILs), a subset of ACT, are characterized by their heterogeneity and …

Molecular Characterization And Predictors Of Relapse In Patients With Ph + All After Frontline Ponatinib And Blinatumomab, Nicholas J Short, Hagop Kantarjian, Ken Furudate, Nitin Jain, Farhad Ravandi, Omer Karrar, Sanam Loghavi, Lewis Nasr, Fadi G Haddad, Jayastu Senapati, Rebecca Garris, Koichi Takahashi, Elias Jabbour

Faculty, Staff and Student Publications

Background: Several studies have suggested that chemotherapy-free regimens consisting of blinatumomab and a BCR::ABL1 tyrosine kinase inhibitor are highly effective in Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph + ALL). However, the clinical and molecular characteristics that predict for relapse with these chemotherapy-free regimens are largely unknown.

Methods: We conducted a prospective phase II clinical trial of the combination of blinatumomab and ponatinib in 76 patients with newly diagnosed Ph + ALL. Patients received 12-15 doses of intrathecal chemotherapy as central nervous systemic (CNS) prophylaxis. The patterns of relapse and the clinical and molecular predictors of relapse were analyzed.

Results: With …

Genome-Wide Allele-Specific Expression In Multi-Tissue Samples From Healthy Male Baboons Reveals The Transcriptional Complexity Of Mammals, Ramesh Ramasamy, Muthuswamy Raveendran, R Alan Harris, Hiep D Le, Ludovic S Mure, Giorgia Benegiamo, Ouria Dkhissi-Benyahya, Howard Cooper, Jeffrey Rogers, Satchidananda Panda

Faculty, Staff and Students Publications

Allele-specific expression (ASE) is pivotal in understanding the genetic underpinnings of phenotypic variation within species, differences in disease susceptibility, and responses to environmental factors. We processed 11 different tissue types collected from 12 age-matched healthy olive baboons (Papio anubis) for genome-wide ASE analysis. By sequencing their genomes at a minimum depth of 30×, we identified over 16 million single-nucleotide variants (SNVs). We also generated long-read sequencing data, enabling the phasing of all variants present within the coding regions of 96.5% of assayable protein-coding genes as a single haplotype block. Given the extensive heterozygosity of baboons relative to humans, we could …

Ogg1s326c Variant Frequent In Human Populations Facilitates Inflammatory Responses Due To Its Extended Interaction With Dna Substrate, Jinling Han, Meichen Zhang, Jiakun Ge, Zhihua Ji, Jianyi Zhao, Yinchao Hu, Chunshuang Li, Yaoyao Xue, Xining Li, Haiwang Zhao, Zixu Cui, Miaomiao Tian, Xu Zheng, Dapeng Wang, Jing Wang, Min Wei, Zsolt Radak, Yusaku Nakabeppu, Istvan Boldogh, Xueqing Ba

Faculty, Staff and Student Publications

8-oxoguanine (8-oxoGua) is one of the most frequent forms of oxidative DNA base lesions, repaired by 8-oxoguanine DNA glycosylase 1 (OGG1) via base excision repair (BER) pathway to maintain genome fidelity. The human allelic variant hOGG1^S326C, prevalent in Caucasians and Asians, has been regarded as a susceptibility factor for various diseases, yet its pathogenic mechanism remains elusive. In this study, we demonstrate that Ogg1^S326C/S326C mice exhibit increased and sustained airway inflammation compared with wild-type (WT) Ogg1^S326/S326 mice. Mechanistically, in response to inflammatory stimulation, OGG1S326C undergoes reactive oxygen species-induced dimerization, which impairs its base excision function, but …

A Pharmacokinetic And Safety Study Of Oral Arsenic Trioxide In Patients With Acute Promyelocytic Leukemia, Farhad Ravandi, Sravanti Rangaraju, Hagop Kantarjian, Guillermo Garcia-Manero, Musa Yilmaz, Kristen Baker, Terence Hall, Joy Grabenstein, Pourab Roy, Beth A Zamboni, William C Zamboni, Erica Warlick, Michael Kelly, David A Roth, Gabriel Ghiaur

Faculty, Staff and Student Publications

SY-2101 is a novel oral formulation of arsenic trioxide (ATO). Although IV ATO in combination with all trans retinoic acid is highly efficacious in treating acute promyelocytic leukemia (APL), there remains a significant unmet need due to the treatment burden associated with receiving daily ATO infusions for nearly a year and the risk of complications associated with indwelling central catheters. The pharmacokinetics (PK), safety, and tolerability of SY-2101 and ATO IV after single- and multiple-dose administration and the impact of food on PK for SY-2101 were evaluated in this phase 1 study in 15 participants with APL. SY-2101 in the …

Phase I Study Of Pomalidomide In Relapsed Or Refractory Waldenström Macroglobulinaemia, Karan L Chohan, Donna M Weber, Lei Feng, L Michael Wang, Sattva S Neelapu, Jasper Olsem, Ralph J Johnson, Claudia Morales De Partovi, Robert Z Orlowski, Sheeba K Thomas

Faculty, Staff and Student Publications

No abstract provided.

Allogeneic Chimeric Antigen Receptor T-Cell Products Cemacabtagene Ansegedleucel/Allo-501 In Relapsed/Refractory Large B-Cell Lymphoma: Phase I Experience From The Alpha2/Alpha Clinical Studies, Frederick L Locke, Javier L Munoz, Michael T Tees, Lazaros J Lekakis, Sven De Vos, Rajneesh Nath, Don A Stevens, Shahbaz A Malik, Geoffrey P Shouse, Mehdi Hamadani, Olalekan O Oluwole, Miguel-Angel Perales, David B Miklos, Paul W Fisher, Amy Feng, Lynn Navale, John B Le Gall, Sattva S Neelapu

Faculty, Staff and Student Publications

Purpose: Off-the-shelf, allogeneic CD19 chimeric antigen receptor (CAR) T-cell products may improve access to treatment versus autologous ones. We report the phase I experience of the allogeneic CD19 CAR T-cell product cemacabtagene ansegedleucel (cema-cel) and its predecessor, ALLO-501, in CD19 CAR T-naïve patients with relapsed/refractory large B-cell lymphoma (R/R LBCL).

Methods: In the ALPHA2/ALPHA studies, the safety and efficacy of allogeneic CD19 CAR T cells were evaluated in CD19 CAR T treatment-naïve patients with R/R LBCL. Patients received healthy donor-derived, human leukocyte antigen-unmatched cema-cel/ALLO-501 following a 3-day lymphodepletion regimen of fludarabine (30 mg/m2 once daily), cyclophosphamide (300 or 500 mg/m2 …

Ligand-Activated Egfr/Mapk Signaling But Not Pi3k, Are Key Resistance Mechanisms To Egfr-Therapy In Colorectal Cancer, Xueping Qu, Habib Hamidi, Radia M Johnson, Ethan S Sokol, Eva Lin, Cathy Eng, Tae Won Kim, Johanna Bendell, Smruthy Sivakumar, Benjamin Kaplan, Felipe De Sousa E Melo, Andrew Mancini, Matthew Wongchenko, Yi Shi, David Shames, Yibing Yan, Fortunato Ciardiello, Carlos Bais

Faculty, Staff and Student Publications

Understanding mechanisms of resistance to active therapies is crucial for developing more effective treatments. Here, we investigate resistance to anti-EGFR and anti-VEGF plus chemotherapy treatment in colorectal cancer (CRC) patients from the IMblaze370 trial (NCT02788279). While anti-VEGF does not select for secondary mutations, anti-EGFR leads to simultaneous mutations in EGFR and MAPK, but not PI3K pathway genes. Notably, we observe frequent acquired mutations in the EGFR extracellular but not intracellular domain and that patients with higher baseline expression of EGFR-ligands are prone to acquire resistant mutations. This data reveals a ligand-activated EGFR/MAPK-signaling dependency in CRC. We also observe enrichment for …

Sustained Growth-Promoting Effects Of Vosoritide In Children With Achondroplasia From An Ongoing Phase 3 Extension Study, Ravi Savarirayan, Melita Irving, William R Wilcox, Carlos A Bacino, Julie E Hoover-Fong, Paul Harmatz, Lynda E Polgreen, Katja Palm, Carlos E Prada, Takuo Kubota, Paul Arundel, Yumiko Kotani, Antonio Leiva-Gea, Michael B Bober, Jacqueline T Hecht, Janet M Legare, Sue Lawrinson, Andrea Low, Ian Sabir, Alice Huntsman-Labed, Jonathan R S Day

Faculty, Staff and Students Publications

Background: Vosoritide is a C-type natriuretic peptide analog that addresses an underlying pathway causing reduced bone growth in achondroplasia. Understanding the vosoritide treatment effect requires evaluation over an extended duration and comparison with outcomes in untreated children.

Methods: After completing ≥6 months of a baseline observational growth study and 52 weeks in a double-blind, placebo-controlled study (ClinicalTrials.gov: NCT03197766), participants were eligible to continue treatment in an open-label extension (ClinicalTrials.gov: NCT03424018) wherein all received 15 μg/kg vosoritide daily. Data from the CLARITY achondroplasia study provided an external untreated control population and reference data.

Findings: The population comprised 119 participants. …

Reply To: Is Gauchian Genotyping Of Gba1 Variants Reliable?, Marco Toffoli, Anthony H V Schapira, Fritz J Sedlazeck, Christos Proukakis

Faculty, Staff and Students Publications

No abstract provided.

Overconfidence And Financial Risk Tolerance In Older Age, Colleen C Frank, Gary R Mottola, Meiru Chen, Lei Yu, Patricia A Boyle, Gregory R Samanez-Larkin, Kendra L Seaman

Faculty, Staff and Student Publications

Objectives: Excessive financial risk-taking in older age can have harmful consequences as opportunities to recover lost wealth are limited. Understanding financial risk-taking in older age is important for identifying vulnerabilities and developing interventions to empower aging investors to make wise financial choices. In this paper, we explore how overconfidence in financial knowledge affects financial risk-taking among older adults.

Methods: We examine this research question in older adults aged 58-101 (N = 1,242) using data from the Rush Memory and Aging Project (MAP).

Results: After controlling for demographics, overconfidence was associated with self-reported financial risk tolerance such that those who were …

Metabolic Reprogramming Driven By Ant2 Deficiency Augments T Cell Function And Anti-Tumor Immunity In Mice, Omri Yosef, Leonor Cohen-Daniel, Oded Shamriz, Zahala Bar-On, Wajeeh Salaymeh, Amijai Saragovi, Ifat Abramovich, Bella Agranovich, Veronika Lutz, Joseph Tam, Anna Permyakova, Eyal Gottlieb, Magdalena Huber, Michael Berger

Faculty, Staff and Student Publications

T cell activation requires a substantial increase in NAD+ production, often exceeding the capacity of oxidative phosphorylation (OXPHOS). To investigate how T cells adapt to this metabolic challenge, we generate T cell-specific ADP/ATP translocase-2 knockout (Ant2-/-) mice. Loss of Ant2, a crucial protein mediating ADP/ATP exchange between mitochondria and cytoplasm, induces OXPHOS restriction by limiting ATP synthase activity, thereby impeding NAD+ regeneration. Interestingly, Ant2-/- naïve T cells exhibit enhanced activation, proliferation and effector functions compared to wild-type controls. Metabolic profiling reveals that these T cells adopt an activated-like metabolic program with increased mitobiogenesis and anabolism. Lastly, pharmacological inhibition of ANT …

Enhanced Efficacy Of Ipilimumab Plus Nivolumab In Angiogenic Subtypes Of Metastatic Clear-Cell Renal Cell Carcinoma, Xiaofan Lu, Yann-Alexandre Vano, Xiaoping Su, Virginie Verkarre, Cheng-Ming Sun, Wenxuan Cheng, Li Xu, Fangrong Yan, Salma Kotti, Wolf Herman Fridman, Catherine Sautes-Fridman, Stéphane Oudard, Gabriel G Malouf

Faculty, Staff and Student Publications

In metastatic clear-cell renal cell carcinoma (mccRCC), choosing between immuno-oncology (IO) combinations and IO plus anti-VEGF therapies is uncertain. The BIONIKK trial revealed that ipilimumab plus nivolumab (Ipi/Nivo) achieved a 70% objective response rate in angiogenic cluster1/2 versus 41% in cluster4/5, which featured T-effector/cell-cycle signatures (p = 0.048). Complete responses were exclusively observed in cluster1/2 (p = 0.012), with longer progression-free survival (p = 0.014). Ipi/Nivo may particularly benefit angiogenic mccRCC, supporting molecular subtype-based treatment strategies.

Discovery Of Novel, Potent, And Orally Bioavailable Smarca2 Proteolysis-Targeting Chimeras With Synergistic Antitumor Activity In Combination With Kirsten Rat Sarcoma Viral Oncogene Homologue G12c Inhibitors, Sasikumar Kotagiri, Yawen Wang, Yanyan Han, Xiaobing Liang, Nicholas Blazanin, Hira Mazhar, Manu Sebastian, Phuong Kieu Nguyen, Yongying Jiang, Yonathan Lissanu

Faculty, Staff and Student Publications

Cancer genomic studies have identified frequent mutations in subunits of the SWI/SNF chromatin remodeling complex, including SMARCA4 in nonsmall cell lung cancer with a frequency of up to 33% in advanced-stage disease, making it the most frequently mutated complex. We and others have identified SMARCA2 to be synthetic lethal to SMARCA4, indicating that SMARCA2 is a high-value therapeutic target. Here, we disclose the discovery and characterization of potent, selective, and orally bioavailable cereblon-based SMARCA2 PROTACs. Biochemically, we showed that YDR1 and YD54 are potent SMARCA2 degraders. Further, we showed the antitumor growth inhibitory activity of YDR1 and YD54 in SMARCA4 …

Zanidatamab Monotherapy Or Combined With Chemotherapy In Her2-Expressing Gastroesophageal Adenocarcinoma: A Phase 1 Trial, Funda Meric-Bernstam, Sun Young Rha, Erika Hamilton, Yoon-Koo Kang, Diana L Hanna, Syma Iqbal, Keun-Wook Lee, Jeeyun Lee, Muralidhar Beeram, Do-Youn Oh, Jorge Chaves, Rachel A Goodwin, Jaffer A Ajani, Lin Yang, Rajen Oza, Elena Elimova

Faculty, Staff and Student Publications

There is a need for novel therapies for patients with previously treated HER2-positive gastroesophageal adenocarcinoma (GEA). This phase 1 (NCT02892123) dose-escalation and expansion trial evaluated zanidatamab (a dual HER2-targeted bispecific antibody) ± chemotherapy in previously treated patients with HER2-expressing, locally advanced/metastatic cancers. Here, we report the outcomes for GEA cohorts receiving zanidatamab monotherapy or with chemotherapy (paclitaxel or capecitabine). The primary endpoint was safety and tolerability. Secondary endpoints were objective response rate (ORR), disease control rate, progression-free survival, pharmacokinetics, and immunogenicity. Seventy patients were enrolled (n = 29 monotherapy; n = 41 combination therapy); most received prior HER2-targeted agents (monotherapy, …

Human Pain Neuroscience And The Next Generation Of Pain Therapeutics, Bryan A Copits, Michele Curatolo, Patrick M Dougherty, Robert W Gereau, Wenqin Luo, Maryann Martone, Hakan Olausson, Theodore J Price, William Renthal, Clifford J Woolf, Guoyan Zhao

Faculty, Staff and Student Publications

The recent approval of suzetrigine for acute pain treatment highlights both the success of targeting peripheral sensory neurons for pain management and the potential of developing new pain therapies primarily in human-based systems. To realize this transformative potential, further research into somatosensation and pain neuroimmunology in human systems is essential.

A Honduran Prevalence Study On Soil-Transmitted Helminths Highlights Serological Antibodies To Tm-Wap49 As A Diagnostic Marker For Exposure To Human Trichuriasis, Neima Briggs, Leroy Versteeg, Rojelio Mejia, Jeroen Pollet, Maria Jose Villar, Bin Zhan, Graeme Segal, Stephanie Novak, Patricia Lenihan, Paul Musgrave, Viviana Ellis, Carol Florencia Coello, K Jagannadha Sastry, Joe Craft, Peter J Hotez, Maria Elena Bottazzi

Faculty, Staff and Student Publications

Soil-transmitted helminth (STH) infections rank among the most prevalent communicable diseases of humans, yet detection of these parasites is mostly restricted to identifying active infection through fecal examinations. Currently, there are no commercial diagnostic tools to identify a prior whipworm or hookworm exposure, and the few serological assays for roundworm infection have not been well validated for crossreactivity or infections in humans. Such diagnostic restrictions limit the range of scientific and clinical questions that surround STH exposures and their implicated relationship to chronic diseases, such as autoimmunity, allergy, and cancer. The goal of this investigation was to evaluate the diagnostic …

Progressive Multifocal Leukoencephalopathy In Chimeric Antigen Receptor T-Cell Therapy Recipients: A Case Study, Michelly Abreu, Chirag B Patel, Krina Patel, Fareed Khawaja, Sudhakar Tummala

Faculty, Staff and Student Publications

Chimeric antigen receptor (CAR) T-cell therapy is a novel immunotherapy modality that has shown remarkable response rates in refractory hematologic malignancies, including multiple myeloma (MM). Cytokine release syndrome (CRS) and neurotoxicity are well-described side effects of this therapy. CAR T-cell therapy recipients are also at increased risk for infections due to immune dysfunction, history of multiple lines of therapy, history of lymphodepleting chemotherapy prior to cell infusion, and prolonged B-cell aplasia. Progressive multifocal leukoencephalopathy (PML) is an opportunistic disease of the central nervous system caused by the reactivation of JC virus (JCV) in the setting of immunosuppression, which leads to …

Axl Promotes Inflammatory Breast Cancer Progression By Regulating Immunosuppressive Macrophage Polarization, Lan T H Phi, Yating Cheng, Yohei Funakoshi, Francois Bertucci, Pascal Finetti, Steven J Van Laere, Fang Zou, James P Long, Suguru Ogata, Savitri Krishnamurthy, James M Reuben, Jason M Foulks, Steven L Warner, Jennifer M Rosenbluth, Anil K Sood, Debu Tripathy, Naoto T Ueno, Xiaoping Wang

Faculty, Staff and Student Publications

Background: Tumor-associated macrophages (TAMs) are key promoters of inflammatory breast cancer (IBC), the most aggressive form of breast cancer. The receptor tyrosine kinase AXL is highly expressed in various cancer types, including IBC, but its role in TAMs remains unexplored.

Methods: We examined the effects of AXL inhibitor TP-0903 on tumor growth and tumor microenvironment (TME) component M2 macrophages (CD206+) in IBC and triple-negative breast cancer mouse models using flow cytometry and immunohistochemical staining. Additionally, we knocked out AXL expression in human THP-1 monocytes and evaluated the effect of AXL signaling on immunosuppressive M2 macrophage polarization and IBC cell growth …

Language Mapping During Awake Brain Surgery In A Deaf Patient With A Brain Tumor: Illustrative Case, Ene Chibawanye I, Elizabeth Silva, Kyle Noll, Mariana Bradshaw, Katherine Connelly, Ho-Ling Liu, Ravi Tummala, David Ferson, Frederick F Lang, Vinodh A Kumar

Faculty, Staff and Student Publications

Background: Signed language integrates complex sensorimotor processes involving visual and motor networks. The contribution of language regions such as Broca's and Wernicke's areas during signing is not well established. Here, the authors report the case of a 45-year-old right-handed male with congenital deafness, who communicates using American Sign Language (ASL) and Signed English, presenting with focal seizures. Imaging showed a diffuse infiltrative glioma in the right cerebral hemisphere.

Observations: Remarkably, preoperative functional MRI language activations were bihemispheric and overlapped for both traditional language paradigms and sign paradigms, suggesting that the same cortical regions of the brain are used for language …

Alzheimer’S Disease Protective Allele Of Clusterin Modulates Neuronal Excitability Through Lipid-Droplet-Mediated Neuron-Glia Communication, Xiaojie Zhao, Yan Li, Siwei Zhang, Ari Sudwarts, Hanwen Zhang, Alena Kozlova, Matthew J Moulton, Lindsey D Goodman, Zhiping P Pang, Alan R Sanders, Hugo J Bellen, Gopal Thinakaran, Jubao Duan

Duncan NRI Faculty and Staff Publications

Background: Genome-wide association studies (GWAS) of Alzheimer's disease (AD) have identified a plethora of risk loci. However, the disease variants/genes and the underlying mechanisms have not been extensively studied.

Methods: Bulk ATAC-seq was performed in induced pluripotent stem cells (iPSCs) differentiated various brain cell types to identify allele-specific open chromatin (ASoC) SNPs. CRISPR-Cas9 editing generated isogenic pairs, which were then differentiated into glutamatergic neurons (iGlut). Transcriptomic analysis and functional studies of iGlut co-cultured with mouse astrocytes assessed neuronal excitability and lipid droplet formation.

Results: We identified a putative causal SNP of CLU that impacted neuronal chromatin accessibility to transcription-factor(s), with …