PMID- 25079358 OWN - NLM STAT- MEDLINE DCOM- 20150930 LR - 20211021 IS - 1528-0020 (Electronic) IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 124 IP - 12 DP - 2014 Sep 18 TI - Absence of STAT1 in donor-derived plasmacytoid dendritic cells results in increased STAT3 and attenuates murine GVHD. PG - 1976-86 LID - 10.1182/blood-2013-05-500876 [doi] AB - Selective targeting of non-T cells, including antigen-presenting cells (APCs), is a potential strategy to prevent graft-versus-host-disease (GVHD) but to maintain graft-versus-tumor (GVT) effects. Because type I and II interferons signal through signal transducer and activator of transcription-1 (STAT1), and contribute to activation of APCs after allogeneic bone marrow transplant (alloBMT), we examined whether the absence of STAT1 in donor APCs could prevent GVHD while preserving immune competence. Transplantation of STAT1(-/-) bone marrow (BM) prevented GVHD induced by STAT1(+/+) T cells, leading to expansion of B220(+) cells and regulatory T cells. STAT1(-/-) BM also preserved GVT activity and enhanced overall survival of tumor-challenged mice in the setting of GVHD. Furthermore, recipients of allogeneic STAT1(-/-) BM demonstrated increased CD9(-)Siglec H(hi) plasmacytoid dendritic cells (pDCs), and depletion of pDCs after STAT1(-/-) BM transplantation prevented GVHD resistance. STAT1(-/-) pDCs were found to produce decreased free radicals, IFNalpha, and interleukin (IL)-12, and increased IL-10. Additionally, STAT1(-/-) pDCs that were isolated after alloBMT showed increased gene expression of S100A8 and S100A9, and transplantation of S100A9(-/-) BM reduced GVHD-free survival. Finally, elevated STAT3 was found in STAT1(-/-) pDCs isolated after alloBMT. We conclude that interfering with interferon signaling in APCs such as pDCs provides a novel approach to regulate the GVHD/GVT axis. FAU - Capitini, Christian M AU - Capitini CM AUID- ORCID: 0000-0002-2276-6731 AD - Department of Pediatrics and Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI; FAU - Nasholm, Nicole M AU - Nasholm NM AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Chien, Christopher D AU - Chien CD AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Larabee, Shannon M AU - Larabee SM AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Qin, Haiying AU - Qin H AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Song, Young K AU - Song YK AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Klover, Peter J AU - Klover PJ AD - Laboratory of Genetics and Physiology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD. FAU - Hennighausen, Lothar AU - Hennighausen L AD - Laboratory of Genetics and Physiology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD. FAU - Khan, Javed AU - Khan J AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. FAU - Fry, Terry J AU - Fry TJ AD - Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, and. LA - eng GR - K08 CA174750/CA/NCI NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't DEP - 20140725 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Calgranulin A) RN - 0 (Calgranulin B) RN - 0 (S100A9 protein, mouse) RN - 0 (S100a8 protein, mouse) RN - 0 (STAT1 Transcription Factor) RN - 0 (STAT3 Transcription Factor) RN - 0 (Stat1 protein, mouse) RN - 0 (Stat3 protein, mouse) SB - IM CIN - Blood. 2014 Sep 18;124(12):1852-3. PMID: 25606629 MH - Allografts MH - Animals MH - Bone Marrow Transplantation/adverse effects MH - Calgranulin A/genetics MH - Calgranulin B/genetics/metabolism MH - Dendritic Cells/immunology/*metabolism/*transplantation MH - Female MH - Gene Expression MH - Graft vs Host Disease/etiology/metabolism/*prevention & control MH - Male MH - Mice MH - Mice, 129 Strain MH - Mice, Inbred C3H MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Mice, Transgenic MH - STAT1 Transcription Factor/*deficiency/genetics MH - STAT3 Transcription Factor/*metabolism MH - T-Lymphocytes/immunology/metabolism MH - Tissue Donors PMC - PMC4168352 EDAT- 2014/08/01 06:00 MHDA- 2015/10/01 06:00 PMCR- 2015/09/18 CRDT- 2014/08/01 06:00 PHST- 2014/08/01 06:00 [entrez] PHST- 2014/08/01 06:00 [pubmed] PHST- 2015/10/01 06:00 [medline] PHST- 2015/09/18 00:00 [pmc-release] AID - S0006-4971(20)39747-0 [pii] AID - 2013/500876 [pii] AID - 10.1182/blood-2013-05-500876 [doi] PST - ppublish SO - Blood. 2014 Sep 18;124(12):1976-86. doi: 10.1182/blood-2013-05-500876. Epub 2014 Jul 25.