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- Bacterial vaginosis (2)
- Lactobacillus (2)
- Prevotella (2)
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- Anal cancer (1)
- Anal dysplasia (1)
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- HIV (1)
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Articles 1 - 16 of 16
Full-Text Articles in Medicine and Health Sciences
Microbial Interactions Among Gardnerella, Prevotella And Fannyhessea Prior To Incident Bacterial Vaginosis: Protocol For A Prospective, Observational Study, Christina A. Muzny, Jacob H. Elnaggar, Lúcia G.V. Sousa, Ângela Lima, Kristal J. Aaron, Isaac C. Eastlund, Keonte J. Graves, Chaoling Dong, Olivia T. Van Gerwen, Meng Luo, Ashutosh Tamhane, Dustin Long, Nuno Cerca, Christopher M. Taylor
Microbial Interactions Among Gardnerella, Prevotella And Fannyhessea Prior To Incident Bacterial Vaginosis: Protocol For A Prospective, Observational Study, Christina A. Muzny, Jacob H. Elnaggar, Lúcia G.V. Sousa, Ângela Lima, Kristal J. Aaron, Isaac C. Eastlund, Keonte J. Graves, Chaoling Dong, Olivia T. Van Gerwen, Meng Luo, Ashutosh Tamhane, Dustin Long, Nuno Cerca, Christopher M. Taylor
School of Graduate Studies Faculty Publications
Introduction The aetiology of bacterial vaginosis (BV), a biofilm-associated vaginal infection, remains unknown. Epidemiologic data suggest that it is sexually transmitted. BV is characterised by loss of lactic acid-producing lactobacilli and an increase in facultative and strict anaerobic bacteria. Gardnerella spp are present in 95%–100% of cases; Gardnerella vaginalis has been found to be more virulent than other BV-associated bacteria (BVAB) in vitro. However, G. vaginalis is found in women with normal vaginal microbiota and colonisation is not sufficient for BV development. We hypothesise that Gardnerella spp initiate BV biofilm formation, but incident BV (iBV) requires incorporation of other key …
Association Of Chlamydia Trachomatis Burden With The Vaginal Microbiota, Bacterial Vaginosis, And Metronidazole Treatment, Caleb M. Ardizzone, Christopher M. Taylor, Evelyn Toh, Rebecca A. Lillis, Jacob H. Elnaggar, John W. Lammons, Patricia Dehon Mott, Emily L. Duffy, Li Shen, Alison J. Quayle
Association Of Chlamydia Trachomatis Burden With The Vaginal Microbiota, Bacterial Vaginosis, And Metronidazole Treatment, Caleb M. Ardizzone, Christopher M. Taylor, Evelyn Toh, Rebecca A. Lillis, Jacob H. Elnaggar, John W. Lammons, Patricia Dehon Mott, Emily L. Duffy, Li Shen, Alison J. Quayle
School of Graduate Studies Faculty Publications
Bacterial vaginosis (BV), a dysbiosis of the vaginal microbiota, is a common coinfection with Chlamydia trachomatis (Ct), and BV-associated bacteria (BVAB) and their products have been implicated in aiding Ct evade natural immunity. Here, we determined if a non-optimal vaginal microbiota was associated with a higher genital Ct burden and if metronidazole, a standard treatment for BV, would reduce Ct burden or aid in natural clearance of Ct infection. Cervicovaginal samples were collected from women at enrollment and, if testing positive for Ct infection, at a follow-up visit approximately one week later. Cervical Ct burden was assessed by inclusion forming …
Sutterella And Its Metabolic Pathways Positively Correlate With Vaccine-Elicited Antibody Responses In Infant Rhesus Macaques, Danting Jiang, Ria Goswami, Maria Dennis, Holly Heimsath, Pamela A. Kozlowski, Amir Ardeshir, Koen K.A. Van Rompay, Kristina De Paris, Sallie R. Permar, Neeraj K. Surana
Sutterella And Its Metabolic Pathways Positively Correlate With Vaccine-Elicited Antibody Responses In Infant Rhesus Macaques, Danting Jiang, Ria Goswami, Maria Dennis, Holly Heimsath, Pamela A. Kozlowski, Amir Ardeshir, Koen K.A. Van Rompay, Kristina De Paris, Sallie R. Permar, Neeraj K. Surana
School of Graduate Studies Faculty Publications
Introduction: It is becoming clearer that the microbiota helps drive responses to vaccines; however, little is known about the underlying mechanism. In this study, we aimed to identify microbial features that are associated with vaccine immunogenicity in infant rhesus macaques. Methods: We analyzed 16S rRNA gene sequencing data of 215 fecal samples collected at multiple timepoints from 64 nursery-reared infant macaques that received various HIV vaccine regimens. PERMANOVA tests were performed to determine factors affecting composition of the gut microbiota throughout the first eight months of life in these monkeys. We used DESeq2 to identify differentially abundant bacterial taxa, PICRUSt2 …
Dynamics Of Serum-Neutralizing Antibody Responses In Vaccinees Through Multiple Doses Of The Bnt162b2 Vaccine, Jared Sheehan, Caleb M. Ardizzone, Mayank Khanna, Amber J. Trauth, Michael E. Hagensee, Alistair J. Ramsay
Dynamics Of Serum-Neutralizing Antibody Responses In Vaccinees Through Multiple Doses Of The Bnt162b2 Vaccine, Jared Sheehan, Caleb M. Ardizzone, Mayank Khanna, Amber J. Trauth, Michael E. Hagensee, Alistair J. Ramsay
School of Graduate Studies Faculty Publications
SARS-CoV-2 mRNA vaccines are administered as effective prophylactic measures for reducing virus transmission rates and disease severity. To enhance the durability of post-vaccination immunity and combat SARS-CoV-2 variants, boosters have been administered to two-dose vaccinees. However, long-term humoral responses following booster vaccination are not well characterized. A 16-member cohort of healthy SARS-CoV-2 naïve participants were enrolled in this study during a three-dose BNT162b2 vaccine series. Serum samples were collected from vaccinees over 420 days and screened for antigen (Ag)-specific antibody titers, IgG subclass distribution, and neutralizing antibody (nAb) responses. Vaccine boosting restored peak Ag-specific titers with sustained α-RBD IgG and …
In Vivo Treatment With Insulin-Like Growth Factor 1 Reduces Ccr5 Expression On Vaccine-Induced Activated Cd4+ T-Cells, Massimiliano Bissa, Veronica Galli, Luca Schifanella, Monica Vaccari, Mohammad Arif Rahman, Giacomo Gorini, Nicolò Binello, Sarkis Sarkis, Anna Gutowska, Isabela Silva De Castro, Melvin N. Doster, Ramona Moles, Guido Ferrari, Xiaoying Shen, Georgia D. Tomaras, David C. Montefiori, Kombo F. N’Guessan, Dominic Paquin-Proulx, Pamela A. Kozlowski, David J. Venzon, Hyoyoung Choo-Wosoba, Matthew W. Breed, Joshua Kramer, Genoveffa Franchini
In Vivo Treatment With Insulin-Like Growth Factor 1 Reduces Ccr5 Expression On Vaccine-Induced Activated Cd4+ T-Cells, Massimiliano Bissa, Veronica Galli, Luca Schifanella, Monica Vaccari, Mohammad Arif Rahman, Giacomo Gorini, Nicolò Binello, Sarkis Sarkis, Anna Gutowska, Isabela Silva De Castro, Melvin N. Doster, Ramona Moles, Guido Ferrari, Xiaoying Shen, Georgia D. Tomaras, David C. Montefiori, Kombo F. N’Guessan, Dominic Paquin-Proulx, Pamela A. Kozlowski, David J. Venzon, Hyoyoung Choo-Wosoba, Matthew W. Breed, Joshua Kramer, Genoveffa Franchini
School of Graduate Studies Faculty Publications
At the heart of the DNA/ALVAC/gp120/alum vaccine’s efficacy in the absence of neutralizing antibodies is a delicate balance of pro- and anti-inflammatory immune responses that effectively decreases the risk of SIVmac251 acquisition in macaques. Vaccine efficacy is linked to antibodies recognizing the V2 helical conformation, DC-10 tolerogenic dendritic cells eliciting the clearance of apoptotic cells via efferocytosis, and CCR5 downregulation on vaccine-induced gut homing CD4+ cells. RAS activation is also linked to vaccine efficacy, which prompted the testing of IGF-1, a potent inducer of RAS activation with vaccination. We found that IGF-1 changed the hierarchy of V1/V2 epitope recognition and …
A Novel Gardnerella, Prevotella, And Lactobacillus Standard That Improves Accuracy In Quantifying Bacterial Burden In Vaginal Microbial Communities, Jacob H. Elnaggar, Caleb M. Ardizzone, Nuno Cerca, Evelyn Toh, Paweł Łaniewski, Rebecca A. Lillis, Melissa M. Herbst-Kralovetz, Alison J. Quayle, Christina A. Muzny, Christopher M. Taylor
A Novel Gardnerella, Prevotella, And Lactobacillus Standard That Improves Accuracy In Quantifying Bacterial Burden In Vaginal Microbial Communities, Jacob H. Elnaggar, Caleb M. Ardizzone, Nuno Cerca, Evelyn Toh, Paweł Łaniewski, Rebecca A. Lillis, Melissa M. Herbst-Kralovetz, Alison J. Quayle, Christina A. Muzny, Christopher M. Taylor
School of Graduate Studies Faculty Publications
Bacterial vaginosis (BV) is the most common vaginal dysbiosis. In this condition, a polymicrobial biofilm develops on vaginal epithelial cells. Accurately quantifying the bacterial burden of the BV biofilm is necessary to further our understanding of BV pathogenesis. Historically, the standard for calculating total bacterial burden of the BV biofilm has been based on quantifying Escherichia coli 16S rRNA gene copy number. However, E. coli is improper for measuring the bacterial burden of this unique micro-environment. Here, we propose a novel qPCR standard to quantify bacterial burden in vaginal microbial communities, from an optimal state to a mature BV biofilm. …
Moerv14 Mediates The Intracellular Transport Of Cell Membrane Receptors To Govern The Appressorial Formation And Pathogenicity Of Magnaporthe Oryzae, Bin Qian, Xiaotong Su, Ziyuan Ye, Xinyu Liu, Muxing Liu, Haifeng Zhang, Ping Wang, Zhengguang Zhang
Moerv14 Mediates The Intracellular Transport Of Cell Membrane Receptors To Govern The Appressorial Formation And Pathogenicity Of Magnaporthe Oryzae, Bin Qian, Xiaotong Su, Ziyuan Ye, Xinyu Liu, Muxing Liu, Haifeng Zhang, Ping Wang, Zhengguang Zhang
School of Graduate Studies Faculty Publications
Magnaporthe oryzae causes rice blasts posing serious threats to food security worldwide. During infection, M. oryzae utilizes several transmembrane receptor proteins that sense cell surface cues to induce highly specialized infectious structures called appressoria. However, little is known about the mechanisms of intracellular receptor tracking and their function. Here, we described that disrupting the coat protein complex II (COPII) cargo protein MoErv14 severely affects appressorium formation and pathogenicity as the ΔMoerv14 mutant is defective not only in cAMP production but also in the phosphorylation of the mitogen-activated protein kinase (MAPK) MoPmk1. Studies also showed that either externally supplementing cAMP or …
The Non-Coding Rna Journal Club: Highlights On Recent Papers—12, Patrick K.T. Shiu, Mirolyuba Ilieva, Anja Holm, Shizuka Uchida, Johanna K. Distefano, Agnieszka Bronisz, Ling Yang, Yoh Asahi, Ajay Goel, Liuqing Yang, Ashok Nuthanakanti, Alexander Serganov, Suresh K. Alahari, Chunru Lin, Barbara Pardini, Alessio Naccarati, Jing Jin, Beshoy Armanios, Xiao Bo Zhong, Nikolaos Sideris, Salih Bayraktar, Leandro Castellano, André P. Gerber, He Lin, Simon J. Conn, Doha Magdy Mostafa Sleem
The Non-Coding Rna Journal Club: Highlights On Recent Papers—12, Patrick K.T. Shiu, Mirolyuba Ilieva, Anja Holm, Shizuka Uchida, Johanna K. Distefano, Agnieszka Bronisz, Ling Yang, Yoh Asahi, Ajay Goel, Liuqing Yang, Ashok Nuthanakanti, Alexander Serganov, Suresh K. Alahari, Chunru Lin, Barbara Pardini, Alessio Naccarati, Jing Jin, Beshoy Armanios, Xiao Bo Zhong, Nikolaos Sideris, Salih Bayraktar, Leandro Castellano, André P. Gerber, He Lin, Simon J. Conn, Doha Magdy Mostafa Sleem
School of Graduate Studies Faculty Publications
No abstract provided.
Hpv-Related Anal Cancer Is Associated With Changes In The Anorectal Microbiome During Cancer Development, Jacob H. Elnaggar, Victoria O. Huynh, Daniel Lin, R. Tyler Hillman, Chike O. Abana, Molly B. El Alam, Katarina C. Tomasic, Tatiana V. Karpinets, Ramez Kouzy, Jae L. Phan, Jennifer Wargo, Emma B. Holliday, Prajnan Das, Melissa P. Mezzari, Nadim J. Ajami, Erica J. Lynn, Bruce D. Minsky, Van K. Morris, Andrea Milbourne, Craig A. Messick, Ann H. Klopp, P. Andrew Futreal, Cullen M. Taniguchi, Kathleen M. Schmeler, Lauren E. Colbert
Hpv-Related Anal Cancer Is Associated With Changes In The Anorectal Microbiome During Cancer Development, Jacob H. Elnaggar, Victoria O. Huynh, Daniel Lin, R. Tyler Hillman, Chike O. Abana, Molly B. El Alam, Katarina C. Tomasic, Tatiana V. Karpinets, Ramez Kouzy, Jae L. Phan, Jennifer Wargo, Emma B. Holliday, Prajnan Das, Melissa P. Mezzari, Nadim J. Ajami, Erica J. Lynn, Bruce D. Minsky, Van K. Morris, Andrea Milbourne, Craig A. Messick, Ann H. Klopp, P. Andrew Futreal, Cullen M. Taniguchi, Kathleen M. Schmeler, Lauren E. Colbert
School of Graduate Studies Faculty Publications
Background: Squamous cell carcinoma of the anus (SCCA) is a rare gastrointestinal cancer. Factors associated with progression of HPV infection to anal dysplasia and cancer are unclear and screening guidelines and approaches for anal dysplasia are less clear than for cervical dysplasia. One potential contributing factor is the anorectal microbiome. In this study, we aimed to identify differences in anal microbiome composition in the settings of HPV infection, anal dysplasia, and anal cancer in this rare disease. Methods: Patients were enrolled in two prospective studies. Patients with anal dysplasia were part of a cross-sectional cohort that enrolled women with high-grade …
Impact Of Testosterone Use On The Vaginal Microbiota Of Transgender Men, Including Susceptibility To Bacterial Vaginosis: Study Protocol For A Prospective, Observational Study, Christina A. Muzny, Olivia T. Van Gerwen, Julia A. Schroeder, Emma Sophia Kay-Duncan, Krishmita Siwakoti, Kristal J. Aaron, Isaac C. Eastlund, Keonte J. Graves, Jacob H. Elnaggar, Ashutosh Tamhane, Dustin Long, Nicholas Van Wagoner, Evelyn Toh, Christopher M. Taylor
Impact Of Testosterone Use On The Vaginal Microbiota Of Transgender Men, Including Susceptibility To Bacterial Vaginosis: Study Protocol For A Prospective, Observational Study, Christina A. Muzny, Olivia T. Van Gerwen, Julia A. Schroeder, Emma Sophia Kay-Duncan, Krishmita Siwakoti, Kristal J. Aaron, Isaac C. Eastlund, Keonte J. Graves, Jacob H. Elnaggar, Ashutosh Tamhane, Dustin Long, Nicholas Van Wagoner, Evelyn Toh, Christopher M. Taylor
School of Graduate Studies Faculty Publications
Introduction The effect of testosterone (T) therapy on the vaginal microbiota of transgender men (TGM) is not well characterised, although one cross-sectional study comparing the vaginal microbiota of cisgender women to TGM on T≥1 year found that, in 71% of the TGM, the vaginal microbiota was less likely to be Lactobacillus-dominated and more likely to be enriched with >30 other bacterial species, many associated with bacterial vaginosis (BV). This prospective study aims to investigate changes in the composition of the vaginal microbiota over time in TGM who retain their natal genitalia (ie, vagina) and initiate T. In addition, we will …
Homeostasis Of Cell Wall Integrity Pathway Phosphorylation Is Required For The Growth And Pathogenicity Of Magnaporthe Oryzae, Yongchao Cai, Xinyu Liu, Lingbo Shen, Nian Wang, Yangjie He, Haifeng Zhang, Ping Wang, Zhengguang Zhang
Homeostasis Of Cell Wall Integrity Pathway Phosphorylation Is Required For The Growth And Pathogenicity Of Magnaporthe Oryzae, Yongchao Cai, Xinyu Liu, Lingbo Shen, Nian Wang, Yangjie He, Haifeng Zhang, Ping Wang, Zhengguang Zhang
School of Graduate Studies Faculty Publications
The cell wall provides a crucial barrier to stress imposed by the external environment. In the rice blast fungus Magnaporthe oryzae, this stress response is mediated by the cell wall integrity (CWI) pathway, consisting of a well-characterized protein phosphorylation cascade. However, other regulators that maintain CWI phosphorylation homeostasis, such as protein phosphatases (PPases), remain unclear. Here, we identified two PPases, MoPtc1 and MoPtc2, that function as negative regulators of the CWI pathway. MoPtc1 and MoPtc2 interact with MoMkk1, one of the key components of the CWI pathway, and are crucial for the vegetative growth, conidial formation, and virulence of M. …
Microbiome Dynamics During Chemoradiation Therapy For Anal Cancer, Daniel Lin, Molly B. El Alam, Joseph Abi Jaoude, Ramez Kouzy, Jae L. Phan, Jacob H. Elnaggar, Brianna Resendiz, Andrea Y.Delgado Medrano, Erica J. Lynn, Nicholas D. Nguyen, Sonal S. Noticewala, Geena G. Mathew, Emma B. Holliday, Bruce D. Minsky, Prajnan Das, Van K. Morris, Cathy Eng, Melissa P. Mezzari, Joseph F. Petrosino, Nadim J. Ajami, Ann H. Klopp, Cullen M. Taniguchi, Lauren E. Colbert
Microbiome Dynamics During Chemoradiation Therapy For Anal Cancer, Daniel Lin, Molly B. El Alam, Joseph Abi Jaoude, Ramez Kouzy, Jae L. Phan, Jacob H. Elnaggar, Brianna Resendiz, Andrea Y.Delgado Medrano, Erica J. Lynn, Nicholas D. Nguyen, Sonal S. Noticewala, Geena G. Mathew, Emma B. Holliday, Bruce D. Minsky, Prajnan Das, Van K. Morris, Cathy Eng, Melissa P. Mezzari, Joseph F. Petrosino, Nadim J. Ajami, Ann H. Klopp, Cullen M. Taniguchi, Lauren E. Colbert
School of Graduate Studies Faculty Publications
Purpose: Patients with localized squamous cell carcinoma of the anus (SCCA) who experience treatment toxicity or recurrences have few therapeutic options. Investigation into the microbiome's influence on treatment toxicity and its potential use as a predictive biomarker could improve these patients’ outcomes. Our study presents the first longitudinal characterization of the SCCA tumor microbiome and its associations with treatment-related toxicities. Methods and Materials: This prospective cohort study included patients with nonmetastatic SCCA receiving standard-of-care chemoradiation therapy. Anorectal swabs of the tumor site were collected before, during, and after treatment. Patient-reported quality-of-life metrics were collected at similar time points. 16S rRNA …
Identification Of Multiple Hub Genes In Acute Kidney Injury After Kidney Transplantation By Bioinformatics Analysis, Sang Wook Kang, Sung Wook Kang, Ju Yeon Ban, Min Su Park
Identification Of Multiple Hub Genes In Acute Kidney Injury After Kidney Transplantation By Bioinformatics Analysis, Sang Wook Kang, Sung Wook Kang, Ju Yeon Ban, Min Su Park
School of Graduate Studies Faculty Publications
Background and Objectives: The molecular mechanisms of the development of acute kidney injury (AKI) after kidney transplantation are not yet clear. The aim of this study was to confirm the genes and mechanisms related to AKI after transplantation. Materials and Methods: To investigate potential genetic targets for AKI, an analysis of the gene expression omnibus database was used to identify key genes and pathways. After identification of differentially expressed genes, Kyoto En-cyclopedia of Genes and Genome pathway enrichment analyses were performed. We identified the hub genes and established the protein–protein interaction network. Results: Finally, we identified 137 differentially expressed genes …
Sars-Cov-2 Induces Robust Germinal Center Cd4 T Follicular Helper Cell Responses In Rhesus Macaques, Yashavanth Shaan Lakshmanappa, Sonny R. Elizaldi, Jamin W. Roh, Brian A. Schmidt, Timothy D. Carroll, Kourtney D. Weaver, Justin C. Smith, Anil Verma, Jesse D. Deere, Joseph Dutra, Mars Stone, Sergej Franz, Rebecca Lee Sammak, Katherine J. Olstad, J. Rachel Reader, Zhong Min Ma, Nancy K. Nguyen, Jennifer Watanabe, Jodie Usachenko, Ramya Immareddy
Sars-Cov-2 Induces Robust Germinal Center Cd4 T Follicular Helper Cell Responses In Rhesus Macaques, Yashavanth Shaan Lakshmanappa, Sonny R. Elizaldi, Jamin W. Roh, Brian A. Schmidt, Timothy D. Carroll, Kourtney D. Weaver, Justin C. Smith, Anil Verma, Jesse D. Deere, Joseph Dutra, Mars Stone, Sergej Franz, Rebecca Lee Sammak, Katherine J. Olstad, J. Rachel Reader, Zhong Min Ma, Nancy K. Nguyen, Jennifer Watanabe, Jodie Usachenko, Ramya Immareddy
School of Graduate Studies Faculty Publications
CD4 T follicular helper (Tfh) cells are important for the generation of durable and specific humoral protection against viral infections. The degree to which SARS-CoV-2 infection generates Tfh cells and stimulates the germinal center (GC) response is an important question as we investigate vaccine induced immunity against COVID-19. Here, we report that SARS-CoV-2 infection in rhesus macaques, either infused with convalescent plasma, normal plasma, or receiving no infusion, resulted in transient accumulation of pro-inflammatory monocytes and proliferating Tfh cells with a Th1 profile in peripheral blood. CD4 helper cell responses skewed predominantly toward a Th1 response in blood, lung, and …
Lysergic Acid Diethylamide Induces Increased Signalling Entropy In Rats’ Prefrontal Cortex, Aurora Savino, Charles D. Nichols
Lysergic Acid Diethylamide Induces Increased Signalling Entropy In Rats’ Prefrontal Cortex, Aurora Savino, Charles D. Nichols
School of Graduate Studies Faculty Publications
Psychedelic drugs are gaining attention from the scientific community as potential new compounds for the treatment of psychiatric diseases such as mood and substance use disorders. The 5-HT2A receptor has been identified as the main molecular target, and early studies pointed to an effect on the expression of neuroplasticity genes. Analysing RNA-seq data from the prefrontal cortex of rats chronically treated with lysergic acid diethylamide (LSD), we describe the psychedelic-induced rewiring of gene co-expression networks, which become less centralised but more complex, with an overall increase in signalling entropy typical of highly plastic systems. Intriguingly, signalling entropy mirrors, at the …
Targeting Parp-1 With Metronomic Therapy Modulates Mdsc Suppressive Function And Enhances Anti-Pd-1 Immunotherapy In Colon Cancer, Mohamed A. Ghonim, Salome V. Ibba, Abdelmetalab F. Tarhuni, Youssef Errami, Hanh H. Luu, Matthew J. Dean, Ali H. El-Bahrawy, Dorota Wyczechowska, Ilyes A. Benslimane, Luis Del Valle, Amir A. Al-Khami, Augusto C. Ochoa, A Hamid Boulares
Targeting Parp-1 With Metronomic Therapy Modulates Mdsc Suppressive Function And Enhances Anti-Pd-1 Immunotherapy In Colon Cancer, Mohamed A. Ghonim, Salome V. Ibba, Abdelmetalab F. Tarhuni, Youssef Errami, Hanh H. Luu, Matthew J. Dean, Ali H. El-Bahrawy, Dorota Wyczechowska, Ilyes A. Benslimane, Luis Del Valle, Amir A. Al-Khami, Augusto C. Ochoa, A Hamid Boulares
School of Graduate Studies Faculty Publications
BACKGROUND: Poly(ADP-ribose) polymerase (PARP) inhibitors (eg, olaparib) are effective against BRCA-mutated cancers at/near maximum tolerated doses by trapping PARP-1 on damaged chromatin, benefitting only small patient proportions. The benefits of targeting non-DNA repair aspects of PARP with metronomic doses remain unexplored. METHODS: Colon epithelial cells or mouse or human bone marrow (BM)-derived-myeloid-derived suppressor cells (MDSCs) were stimulated to assess the effect of partial PARP-1 inhibition on inflammatory gene expression or immune suppression. Mice treated with azoxymethane/four dextran-sulfate-sodium cycles or mice bred into PARP-1 or treated with olaparib were used to examine the role of PARP-1 in colitis-induced or spontaneous colon …