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Mitogenic signaling by Gq/11-coupled receptors
By binding to their cognate GPCRs, many potent mitogens such as neuropeptides, angiotensin II or lysophosphatidic acid stimulate cell proliferation via engaging the ERK/MAPK cascade. As mentioned before, agonists stimulating Gq/11-coupled receptors activate PLCb isoforms thereby...
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| Định dạng: | Dissertation |
| Ngôn ngữ: | Tiếng Anh |
| Được phát hành: |
Philipps-Universität Marburg
2004
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| Những chủ đề: | |
| Truy cập trực tuyến: | Bài toàn văn PDF |
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| Tóm tắt: | By binding to their cognate GPCRs, many potent
mitogens such as neuropeptides, angiotensin II or
lysophosphatidic acid stimulate cell proliferation via engaging
the ERK/MAPK cascade. As mentioned before, agonists stimulating
Gq/11-coupled receptors activate PLCb isoforms thereby
activating PKCs and elevating [Ca2+]i. These two second
messengers represent key molecules for coupling Gq/11 proteins
to the ERK/MAPK cascade. In this work, by means of GnRH in
gonadotropic aT3-1 cells and galanin or bradykinin in SCLC
cells, different aspects of Gq/11-dependent mitogenic signaling
pathways were revealed. Our findings together with previous
reports underline the notion that signaling pathways emanating
from Gq/11-coupled receptors are tightly regulated in a cell-
and receptor-specific manner. |
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| DOI: | 10.17192/z2004.0120 |