@article{3085745, title = "Immunological Characteristics of Colitis Associated with Anti-CTLA-4 Antibody Therapy", author = "Bamias, G. and Delladetsima, I. and Perdiki, M. and Siakavellas, S.I. and Goukos, D. and Papatheodoridis, G.V. and Daikos, G.L. and Gogas, H.", journal = "Cancer Investigation", year = "2017", volume = "35", number = "7", pages = "443-455", publisher = "Taylor and Francis Ltd.", issn = "0735-7907, 1532-4192", doi = "10.1080/07357907.2017.1324032", keywords = "budesonide; corticosteroid; gamma interferon; infliximab; interleukin 10; interleukin 13; interleukin 17; interleukin 4; ipilimumab; messenger RNA; steroid; transcription factor FOXP3; antineoplastic agent; autacoid; CTLA4 protein, human; cytotoxic T lymphocyte antigen 4; forkhead transcription factor; FOXP3 protein, human; gamma interferon; IFNG protein, human; IL17A protein, human; interleukin 17; ipilimumab; monoclonal antibody, abdominal pain; adult; aged; Article; cancer immunotherapy; CD4+ T lymphocyte; clinical article; colonoscopy; controlled study; diarrhea; enterocolitis; female; fever; gene expression; histology; human; human tissue; lamina propria; male; metastatic melanoma; observational study; phenotype; plasma cell; priority journal; rectum hemorrhage; retrospective study; sigmoidoscopy; treatment outcome; antagonists and inhibitors; biopsy; chemically induced; colitis; colon; diarrhea; drug administration; drug effects; genetics; immunology; intestine mucosa; melanoma; metabolism; middle aged; pathology; Skin Neoplasms; Th1 cell; Th17 cell; time factor, Adult; Aged; Antibodies, Monoclonal; Antineoplastic Agents; Biopsy; Colitis; Colon; Colonoscopy; CTLA-4 Antigen; Diarrhea; Drug Administration Schedule; Female; Forkhead Transcription Factors; Humans; Inflammation Mediators; Interferon-gamma; Interleukin-17; Intestinal Mucosa; Male; Melanoma; Middle Aged; Plasma Cells; Retrospective Studies; Skin Neoplasms; Th1 Cells; Th17 Cells; Time Factors", abstract = "Anti-CTL4-A therapy is associated with development of colitis. We characterized ipilimumab-associated colitis in nine melanoma patients (6 male, mean age: 55.3-yrs). Median value for diarrhea grade was 2, number of ipilimumab doses 2, and interval since last administration 3-wks. Endoscopic characteristics resembled inflammatory bowel disease and histology revealed predominance of plasmacytes or CD4+ T-cells. We observed significant upregulation of Th1 and Th17 effector pathways (>10-fold increase for IFN-γmRNA, >5-fold for IL-17A, p < 0.01 vs. controls). Significant elevation of FoxP3 was also detected. In conclusion, ipilimumab administration results in elevations of effector lymphocytes and pro-inflammatory mediators in the gut lamina propria. © 2017 Taylor & Francis Group, LLC." }