PMID- 32788346 OWN - NLM STAT- MEDLINE DCOM- 20201028 LR - 20220317 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 117 IP - 34 DP - 2020 Aug 25 TI - Neural transcription factor Pou4f1 promotes renal fibrosis via macrophage-myofibroblast transition. PG - 20741-20752 LID - 10.1073/pnas.1917663117 [doi] AB - Unresolved inflammation can lead to tissue fibrosis and impaired organ function. Macrophage-myofibroblast transition (MMT) is one newly identified mechanism by which ongoing chronic inflammation causes progressive fibrosis in different forms of kidney disease. However, the mechanisms underlying MMT are still largely unknown. Here, we discovered a brain-specific homeobox/POU domain protein Pou4f1 (Brn3a) as a specific regulator of MMT. Interestingly, we found that Pou4f1 is highly expressed by macrophages undergoing MMT in sites of fibrosis in human and experimental kidney disease, identified by coexpression of the myofibroblast marker, alpha-SMA. Unexpectedly, Pou4f1 expression peaked in the early stage in renal fibrogenesis in vivo and during MMT of bone marrow-derived macrophages (BMDMs) in vitro. Mechanistically, chromatin immunoprecipitation (ChIP) assay identified that Pou4f1 is a Smad3 target and the key downstream regulator of MMT, while microarray analysis defined a Pou4f1-dependent fibrogenic gene network for promoting TGF-beta1/Smad3-driven MMT in BMDMs at the transcriptional level. More importantly, using two mouse models of progressive renal interstitial fibrosis featuring the MMT process, we demonstrated that adoptive transfer of TGF-beta1-stimulated BMDMs restored both MMT and renal fibrosis in macrophage-depleted mice, which was prevented by silencing Pou4f1 in transferred BMDMs. These findings establish a role for Pou4f1 in MMT and renal fibrosis and suggest that Pou4f1 may be a therapeutic target for chronic kidney disease with progressive renal fibrosis. FAU - Tang, Patrick Ming-Kuen AU - Tang PM AUID- ORCID: 0000-0002-3194-3736 AD - Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, 999077, Hong Kong; patrick.tang@cuhk.edu.hk hylan@cuhk.edu.hk. AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Zhang, Ying-Ying AU - Zhang YY AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong. AD - Department of Nephrology, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China. FAU - Xiao, Jun AU - Xiao J AUID- ORCID: 0000-0003-4004-3382 AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Tang, Philip Chiu-Tsun AU - Tang PC AD - Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Chung, Jeff Yat-Fai AU - Chung JY AD - Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Li, Jinhong AU - Li J AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Xue, Vivian Weiwen AU - Xue VW AD - Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Huang, Xiao-Ru AU - Huang XR AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong. AD - Guangdong-Hong Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, 510080, China. FAU - Chong, Charing Ching-Ning AU - Chong CC AUID- ORCID: 0000-0002-8425-8767 AD - SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Ng, Chi-Fai AU - Ng CF AUID- ORCID: 0000-0002-1723-9646 AD - SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Lee, Tin-Lap AU - Lee TL AD - Reproduction, Development and Endocrinology Program, School of Biomedical Sciences, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - To, Ka-Fai AU - To KF AD - Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, 999077, Hong Kong. FAU - Nikolic-Paterson, David J AU - Nikolic-Paterson DJ AUID- ORCID: 0000-0001-5734-2931 AD - Department of Nephrology and Monash University Department of Medicine, Monash Medical Centre, Clayton, VIC 3168, Australia. FAU - Lan, Hui-Yao AU - Lan HY AD - Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong; patrick.tang@cuhk.edu.hk hylan@cuhk.edu.hk. AD - Guangdong-Hong Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, The Chinese University of Hong Kong, 999077, Hong Kong. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200811 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (POU4F1 protein, human) RN - 0 (Pou4f1 protein, mouse) RN - 0 (SMAD3 protein, human) RN - 0 (Smad3 Protein) RN - 0 (TGFB1 protein, human) RN - 0 (Transcription Factor Brn-3A) RN - 0 (Transforming Growth Factor beta) RN - 0 (Transforming Growth Factor beta1) SB - IM CIN - J Urol. 2021 May;205(5):1517-1519. PMID: 33625915 EIN - Proc Natl Acad Sci U S A. 2022 Mar 8;119(10):e2200781119. PMID: 35245173 MH - Animals MH - Female MH - Fibrosis/physiopathology MH - Gene Regulatory Networks MH - Humans MH - Inflammation/pathology MH - Kidney/pathology MH - Kidney Diseases/genetics MH - Macrophages/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Myofibroblasts/metabolism MH - Signal Transduction/genetics MH - Smad3 Protein/*metabolism MH - Transcription Factor Brn-3A/*genetics/metabolism/physiology MH - Transforming Growth Factor beta/metabolism MH - Transforming Growth Factor beta1/*metabolism MH - Urinary Tract/metabolism PMC - PMC7456094 OTO - NOTNLM OT - Pou4f1 OT - macrophage-myofibroblast transition OT - renal fibrosis COIS- The authors declare no competing interest. EDAT- 2020/08/14 06:00 MHDA- 2020/10/29 06:00 PMCR- 2021/02/11 CRDT- 2020/08/14 06:00 PHST- 2020/08/14 06:00 [pubmed] PHST- 2020/10/29 06:00 [medline] PHST- 2020/08/14 06:00 [entrez] PHST- 2021/02/11 00:00 [pmc-release] AID - 1917663117 [pii] AID - 201917663 [pii] AID - 10.1073/pnas.1917663117 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2020 Aug 25;117(34):20741-20752. doi: 10.1073/pnas.1917663117. Epub 2020 Aug 11.