PMID- 22544759 OWN - NLM STAT- MEDLINE DCOM- 20130115 LR - 20220331 IS - 1527-3350 (Electronic) IS - 0270-9139 (Print) IS - 0270-9139 (Linking) VI - 56 IP - 5 DP - 2012 Nov TI - CD11b(+) Gr1(+) bone marrow cells ameliorate liver fibrosis by producing interleukin-10 in mice. PG - 1902-12 LID - 10.1002/hep.25817 [doi] AB - Clinical trials and animal models suggest that infusion of bone marrow cells (BMCs) is effective therapy for liver fibrosis, but the underlying mechanisms are obscure, especially those associated with early effects of BMCs. Here, we analyzed the early impact of BMC infusion and identified the subsets of BMCs showing antifibrotic effects in mice with carbon tetrachloride-induced liver fibrosis. An interaction between BMCs and activated hepatic stellate cells (HSCs) was investigated using an in vitro coculturing system. Within 24 hours, infused BMCs were in close contact with activated HSCs, which was associated with reduced liver fibrosis, enhanced hepatic expression of interleukin (IL)-10, and expanded regulatory T cells but decreased macrophage infiltration in the liver at 24 hours after BMC infusion. In contrast, IL-10-deficient (IL-10(-/-) ) BMCs failed to reproduce these effects in fibrotic livers. Intriguingly, in isolated cells, CD11b(+) Gr1(high) F4/80(-) and CD11b(+) Gr1(+) F4/80(+) BMCs expressed more IL-10 after coculturing with activated HSCs, leading to suppressed expression of collagen and alpha-smooth muscle actin in HSCs. Moreover, these effects were either enhanced or abrogated, respectively, when BMCs were cocultured with IL-6(-/-) and retinaldehyde dehydrogenase 1(-/-) HSCs. Similar to murine data, human BMCs expressed more IL-10 after coculturing with human HSC lines (LX-2 or hTERT), and serum IL-10 levels were significantly elevated in patients with liver cirrhosis after autologous BMC infusion. CONCLUSION: Activated HSCs increase IL-10 expression in BMCs (CD11b(+) Gr1(high) F4/80(-) and CD11b(+) Gr1(+) F4/80(+) cells), which in turn ameliorates liver fibrosis. Our findings could enhance the design of BMC therapy for liver fibrosis. CI - Copyright (c) 2012 American Association for the Study of Liver Diseases. FAU - Suh, Yang-Gun AU - Suh YG AD - Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea. FAU - Kim, Ja Kyung AU - Kim JK FAU - Byun, Jin-Seok AU - Byun JS FAU - Yi, Hyon-Seung AU - Yi HS FAU - Lee, Young-Sun AU - Lee YS FAU - Eun, Hyuk Soo AU - Eun HS FAU - Kim, So Yeon AU - Kim SY FAU - Han, Kwang-Hyub AU - Han KH FAU - Lee, Kwan Sik AU - Lee KS FAU - Duester, Gregg AU - Duester G FAU - Friedman, Scott L AU - Friedman SL FAU - Jeong, Won-Il AU - Jeong WI LA - eng GR - R01 DK056621/DK/NIDDK NIH HHS/United States GR - R56 DK056621/DK/NIDDK NIH HHS/United States GR - R01DK56621/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20121009 PL - United States TA - Hepatology JT - Hepatology (Baltimore, Md.) JID - 8302946 RN - 0 (Actins) RN - 0 (CD11b Antigen) RN - 0 (CD4 Antigens) RN - 0 (Chemokine CCL2) RN - 0 (Collagen Type I) RN - 0 (Forkhead Transcription Factors) RN - 0 (Foxp3 protein, mouse) RN - 0 (Gr-1 protein, mouse) RN - 0 (Interleukin-1) RN - 0 (Interleukin-2 Receptor alpha Subunit) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Chemokine) RN - 0 (Transforming Growth Factor beta1) RN - 0 (alpha-smooth muscle actin, mouse) RN - 130068-27-8 (Interleukin-10) RN - CL2T97X0V0 (Carbon Tetrachloride) SB - IM MH - Actins/metabolism MH - Animals MH - Bone Marrow Cells/immunology/*metabolism MH - Bone Marrow Transplantation MH - CD11b Antigen/metabolism MH - CD4 Antigens/metabolism MH - Carbon Tetrachloride MH - Cell Communication MH - Chemokine CCL2/genetics/metabolism MH - Collagen Type I/metabolism MH - Forkhead Transcription Factors/metabolism MH - Hepatic Stellate Cells/immunology/*metabolism MH - Humans MH - Interleukin-1/genetics/metabolism MH - Interleukin-10/immunology/*metabolism MH - Interleukin-2 Receptor alpha Subunit/metabolism MH - Liver Cirrhosis/chemically induced/*immunology/*metabolism/pathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Nude MH - Mice, Transgenic MH - RNA, Messenger/metabolism MH - Receptors, Chemokine/metabolism MH - Statistics, Nonparametric MH - T-Lymphocytes, Regulatory/*immunology/metabolism MH - Transforming Growth Factor beta1/genetics/metabolism PMC - PMC3427419 MID - NIHMS374490 EDAT- 2012/05/01 06:00 MHDA- 2013/01/16 06:00 PMCR- 2013/11/01 CRDT- 2012/05/01 06:00 PHST- 2012/02/10 00:00 [received] PHST- 2012/04/25 00:00 [accepted] PHST- 2012/05/01 06:00 [entrez] PHST- 2012/05/01 06:00 [pubmed] PHST- 2013/01/16 06:00 [medline] PHST- 2013/11/01 00:00 [pmc-release] AID - 10.1002/hep.25817 [doi] PST - ppublish SO - Hepatology. 2012 Nov;56(5):1902-12. doi: 10.1002/hep.25817. Epub 2012 Oct 9.