PMID- 7861547 OWN - NLM STAT- MEDLINE DCOM- 19950320 LR - 20220409 IS - 0022-5347 (Print) IS - 0022-5347 (Linking) VI - 153 IP - 3 Pt 1 DP - 1995 Mar TI - PGE1 suppresses the induction of collagen synthesis by transforming growth factor-beta 1 in human corpus cavernosum smooth muscle. PG - 826-34 AB - Collagen synthesis has been examined in primary cultures of human corpus cavernosum smooth muscle cells (HCCSMC), the major mesenchymal cell type of the corpus cavernosum. These cultures were grown from human surgical specimens and characterized by morphological and biochemical characteristics. These cells express mRNA for transforming growth factor-beta 1 (TGF-beta 1), a major regulator of extracellular matrix synthesis, as well as all three subtypes of TGF-beta receptors. Human corpus cavernosum smooth muscle cells primarily synthesize types I and III fibrillar collagen. Treatment of HCCSMC with exogenous TGF-beta 1 (80 pM.) induced a 2.5- to 4.5-fold increase in the synthesis of types I and III collagen and resulted in detectable levels of type V/XI collagen. Treatment of HCCSMC with the eicosanoid PGE1 in combination with TGF-beta 1 suppressed the induction of collagen synthesis by TGF-beta 1 in a dose-dependent manner with concomitant decreases in types I, III and V/XI collagen. The expression of TGF-beta 1 mRNA as well as types I and II TGF-beta receptors was induced by exogenous TGF-beta 1. Transforming growth factor-beta 1 mRNA induction was suppressed by PGE1. These data suggest that prostaglandins and TGF-beta 1 may play a key role in modulation of collagen synthesis in the corpus cavernosum, and in the regulation of fibrosis of the corpus cavernosum. FAU - Moreland, R B AU - Moreland RB AD - Department of Urology, Boston University School of Medicine, Massachusetts. FAU - Traish, A AU - Traish A FAU - McMillin, M A AU - McMillin MA FAU - Smith, B AU - Smith B FAU - Goldstein, I AU - Goldstein I FAU - Saenz de Tejada, I AU - Saenz de Tejada I LA - eng GR - DK39080/DK/NIDDK NIH HHS/United States GR - DK4002505/DK/NIDDK NIH HHS/United States GR - DK40487/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Urol JT - The Journal of urology JID - 0376374 RN - 0 (RNA, Messenger) RN - 0 (Receptors, Transforming Growth Factor beta) RN - 0 (Transforming Growth Factor beta) RN - 9007-34-5 (Collagen) RN - F5TD010360 (Alprostadil) SB - IM MH - Alprostadil/*physiology MH - Cell Division MH - Cells, Cultured MH - Collagen/*biosynthesis MH - Humans MH - Male MH - Muscle, Smooth/cytology/*metabolism MH - Penis/cytology/*metabolism MH - Protein Biosynthesis MH - RNA, Messenger/biosynthesis MH - Receptors, Transforming Growth Factor beta/biosynthesis MH - Transforming Growth Factor beta/antagonists & inhibitors/genetics/*physiology EDAT- 1995/03/01 00:00 MHDA- 1995/03/01 00:01 CRDT- 1995/03/01 00:00 PHST- 1995/03/01 00:00 [pubmed] PHST- 1995/03/01 00:01 [medline] PHST- 1995/03/01 00:00 [entrez] AID - S0022-5347(01)67730-9 [pii] PST - ppublish SO - J Urol. 1995 Mar;153(3 Pt 1):826-34.