PLATELET‐DERIVED GROWTH FACTOR B‐CHAIN COMPRISES THE MAJOR PART OF ENHANCED RELEASED MITOGEN FROM AORTIC ENDOTHELIAL CELLS OF STROKE‐PRONE SPONTANEOUSLY HYPERTENSIVE RATS

M. Sasahara, Y. Hayase, X. H. Yang, K. Iihara, S. Amano, F. Hazama

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

1. The present study was conducted to analyse the release and production of mitogen in cultured aortic endothelial cells of stroke‐prone spontaneously hypertensive rats (SHRSP), for the further understanding of the role of arterial endothelial cells in the genesis of vascular lesions in hypertension. 2. The cultured aortic endothelial cells derived from SHRSP increased released mitogens were compared with those from control Wistar‐Kyoto rats (WKY) with respect to cultured vascular medial smooth muscle cells and fibroblasts. 3. Biochemical analyses determined that the major part of mitogen released from aortic endothelial cells of both SHRSP and controls was the platelet‐derived growth factor B‐chain. 4. Further northern analyses revealed that the transcripts of PDGF B‐chain were constitutively accumulated three‐ to fourfold in quiescent aortic endothelial cells from SHRSP, compared with those from WKY through passages 2 to 5. 5. However, the half‐lives of the transcripts after actinomy cin D treatment were 1.12 h (s.d. = 0.14, n= 4) and 1.28 h (s.d. = 0.08, n= 3), in SHRSP and in WKY, respectively, showing no significant difference. 6. These suggest that the increased accumulated transcripts of PDGF B‐chain in SHRSP are due to an enhanced trans‐criptional rate. These enhanced release and production of PDGF‐B chain in arterial endothelial cells, which may be induced under chronic hypertensive conditions, is suggested to contribute to the genesis of vascular lesion in hypertension, through the stimulation of vascular smooth muscle cell proliferation and hypertrophy.

本文言語英語
ページ(範囲)S123-S125
ジャーナルClinical and Experimental Pharmacology and Physiology
22
DOI
出版ステータス出版済み - 11 1995
外部発表はい

All Science Journal Classification (ASJC) codes

  • 生理学
  • 薬理学
  • 生理学(医学)

フィンガープリント

「PLATELET‐DERIVED GROWTH FACTOR B‐CHAIN COMPRISES THE MAJOR PART OF ENHANCED RELEASED MITOGEN FROM AORTIC ENDOTHELIAL CELLS OF STROKE‐PRONE SPONTANEOUSLY HYPERTENSIVE RATS」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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