Mesenteric Adipose-derived Stromal Cells From Crohn’s Disease Patients Induce Protective Effects in Colonic Epithelial Cells and Mice With Colitis

Cellular and Molecular Gastroenterology and Hepatology

卷:6

Dimitris Stavrakis¹  Aristea Sideri¹  Iordanes Karagiannides¹  Jonathan J. Ruiz¹  Jill M. Hoffman¹  Charalabos Pothoulakis¹  Jerrold R. Turner²  David Q. Shih³ 

[1] Center for Inflammatory Bowel Diseases, Division of Digestive Diseases, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California;

[2] Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts;

[3] Inflammatory Bowel and Immunobiology Research Institute, Cedars Sinai Medical Center, Los Angeles, California;

关键词: Mesenteric Adipose Tissue;    Inflammatory Bowel Disease;    Preadipocytes;    Intestinal Epithelium;   

DOI  :  10.1016/j.jcmgh.2018.02.001

来源: DOAJ

【 摘 要 】

Mesenteric adipose tissue hyperplasia is a hallmark of Crohn’s disease (CD). Recently, we showed that mesenteric adipose-derived stromal cells (ADSCs) from CD, ulcerative colitis, and control patients synthesize and release adipokines in a disease-dependent manner. Here we examined the expression profiles of CD and control patient-derived mesenteric ADSCs and studied the effects of their extracellular mediators on colonocyte signaling in vitro and experimental colitis in vivo. ADSCs were isolated from mesenteric fat of control and CD patients. Microarray profiling and network analysis were performed in ADSCs and human colonocytes treated with conditioned media from cultured ADSCs. Mice with acute colitis received daily injections of conditioned media from patient-derived ADSCs, vehicle, or apolactoferrin. Proliferative responses were evaluated in conditioned media–treated colonocytes and mouse colonic epithelium. Total protein was isolated from cultured colonocytes after treatment with apolactoferrin for Western blot analysis of phosphorylated intracellular signaling kinases. Microarray profiling revealed differential mRNA expression in CD patient-derived ADSCs compared with controls, including lactoferrin. Administration of CD patient-derived medium or apolactoferrin increased colonocyte proliferation compared with controls. Conditioned media from CD patient-derived ADSCs or apolactoferrin attenuated colitis severity in mice and enhanced colonocyte proliferation in vivo. ADSCs from control and CD patients show disease-dependent inflammatory responses and alter colonic epithelial cell signaling in vitro and in vivo. Furthermore, we demonstrate lactoferrin production by adipose tissue, specifically mesenteric ADSCs. We suggest that mesenteric ADSC-derived lactoferrin may mediate protective effects and participate in the pathophysiology of CD by promoting colonocyte proliferation and the resolution of inflammation.

【 授权许可】

Unknown