PMID- 12673036 OWN - NLM STAT- MEDLINE DCOM- 20031121 LR - 20190719 IS - 0918-6158 (Print) IS - 0918-6158 (Linking) VI - 26 IP - 4 DP - 2003 Apr TI - Effects of (+)-catechin on the function of osteoblastic cells. PG - 523-6 AB - Tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) are candidate cytokines which are produced by osteoblastic linage cells and promote osteoblast apoptosis, osteoclastogenesis and bone resorption. Here, we examined the effect of (+)-catechin, one of the most common grape flavonols, on osteoblastic MC3T3-E1 cells. (+)-Catechin caused a significant elevation of cell survival at 10(-5) and 10(-4) M and alkaline phosphatase activity at 10(-5) M. Also, treatment with (+)-catechin (10(-5) M) decreased bone-resorbing cytokines (TNF-alpha and IL-6) production and apoptosis in osteoblasts. Our data indicate that the reduction of bone-resorbing cytokines and apoptosis in osteoblasts by (+)-catechin may result in the prevention and therapy for osteoporosis and inflammatory bone diseases. FAU - Choi, Eun-Mi AU - Choi EM AD - Department of Biotechnology & Bioproducts Research Center, Yonsei University, Seoul, Korea. FAU - Hwang, Jae-Kwan AU - Hwang JK LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Biol Pharm Bull JT - Biological & pharmaceutical bulletin JID - 9311984 RN - 0 (Interleukin-6) RN - 0 (Tumor Necrosis Factor-alpha) RN - 8R1V1STN48 (Catechin) SB - IM MH - Animals MH - Apoptosis/drug effects/physiology MH - Catechin/*pharmacology MH - Cell Line MH - Cell Survival/drug effects/physiology MH - Interleukin-6/biosynthesis MH - Mice MH - Osteoblasts/*drug effects/*physiology MH - Tumor Necrosis Factor-alpha/biosynthesis EDAT- 2003/04/04 05:00 MHDA- 2003/12/03 05:00 CRDT- 2003/04/04 05:00 PHST- 2003/04/04 05:00 [pubmed] PHST- 2003/12/03 05:00 [medline] PHST- 2003/04/04 05:00 [entrez] AID - 10.1248/bpb.26.523 [doi] PST - ppublish SO - Biol Pharm Bull. 2003 Apr;26(4):523-6. doi: 10.1248/bpb.26.523.