PMID- 24349534 OWN - NLM STAT- MEDLINE DCOM- 20140929 LR - 20220316 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 12 DP - 2013 TI - Functional cooperation between vitamin D receptor and Runx2 in vitamin D-induced vascular calcification. PG - e83584 LID - 10.1371/journal.pone.0083584 [doi] LID - e83584 AB - The transdifferentiation of vascular smooth muscle cells (VSMCs) into osteoblast-like cells has been implicated in the context of vascular calcification. We investigated the roles of vitamin D receptor (Vdr) and runt-related transcription factor 2 (Runx2) in the osteoblastic differentiation of VSMCs in response to vitamin D3 using in vitro VSMCs cultures and in vivo in Vdr knockout (Vdr(-/-)) and Runx2 carboxy-terminus truncated heterozygous (Runx2(+/DeltaC)) mice. Treatment of VSMCs with active vitamin D3 promoted matrix mineral deposition, and increased the expressions of Vdr, Runx2, and of osteoblastic genes but decreased the expression of smooth muscle myosin heavy chain in primary VSMCs cultures. Immunoprecipitation experiments suggested an interaction between Vdr and Runx2. Furthermore, silencing Vdr or Runx2 attenuated the procalcific effects of vitamin D3. Functional cooperation between Vdr and Runx2 in vascular calcification was also confirmed in in vivo mouse models. Vascular calcification induced by high-dose vitamin D3 was completely inhibited in Vdr(-/-) or Runx2(+/DeltaC) mice, despite elevated levels of serum calcium or alkaline phosphatase. Collectively, these findings suggest that functional cooperation between Vdr and Runx2 is necessary for vascular calcification in response to vitamin D3. FAU - Han, Min-Su AU - Han MS AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Che, Xiangguo AU - Che X AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Cho, Gyoung-ho AU - Cho GH AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Park, Hye-Ri AU - Park HR AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Lim, Kyung-Eun AU - Lim KE AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Park, Na-Rae AU - Park NR AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Jin, Jung-Sook AU - Jin JS AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Jung, Youn-Kwan AU - Jung YK AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Jeong, Jae-Hwan AU - Jeong JH AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Lee, In-Kyu AU - Lee IK AD - Department of Internal Medicine, Division of Endocrinology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. FAU - Kato, Shigeaki AU - Kato S AD - Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo, Japan. FAU - Choi, Je-Yong AU - Choi JY AD - Department of Biochemistry and Cell Biology, WCU and BK21 plus programs, CMRC, Skeletal Diseases Genome Research Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131212 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Bone Density Conservation Agents) RN - 0 (Core Binding Factor Alpha 1 Subunit) RN - 0 (Receptors, Calcitriol) RN - 0 (Runx2 protein, mouse) RN - 0 (Runx2 protein, rat) RN - 1C6V77QF41 (Cholecalciferol) SB - IM MH - Animals MH - Bone Density Conservation Agents/*adverse effects/pharmacology MH - Cells, Cultured MH - Cholecalciferol/*adverse effects/pharmacology MH - Core Binding Factor Alpha 1 Subunit/genetics/*metabolism MH - Mice MH - Mice, Knockout MH - Muscle, Smooth, Vascular/*metabolism/pathology MH - Myocytes, Smooth Muscle/*metabolism/pathology MH - Rats MH - Receptors, Calcitriol/genetics/*metabolism MH - *Vascular Calcification/chemically induced/genetics/metabolism/pathology PMC - PMC3861528 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/12/19 06:00 MHDA- 2014/09/30 06:00 PMCR- 2013/12/12 CRDT- 2013/12/19 06:00 PHST- 2013/07/07 00:00 [received] PHST- 2013/11/06 00:00 [accepted] PHST- 2013/12/19 06:00 [entrez] PHST- 2013/12/19 06:00 [pubmed] PHST- 2014/09/30 06:00 [medline] PHST- 2013/12/12 00:00 [pmc-release] AID - PONE-D-13-28013 [pii] AID - 10.1371/journal.pone.0083584 [doi] PST - epublish SO - PLoS One. 2013 Dec 12;8(12):e83584. doi: 10.1371/journal.pone.0083584. eCollection 2013.