Biology:Transforming growth factor
Transforming growth factor ([attribution needed], or TGF) is used to describe two classes of polypeptide growth factors, TGFα and TGFβ.
The name "Transforming Growth Factor" is somewhat arbitrary, since the two classes of TGFs are not structurally or genetically related to one another, and they act through different receptor mechanisms. Furthermore, they do not always induce cellular transformation, and are not the only growth factors that induce cellular transformation.
Types
- TGFα is upregulated in some human cancers. It is produced in macrophages, brain cells, and keratinocytes, and induces epithelial development. It belongs to the EGF family.
- TGFβ exists in three known subtypes in humans, TGFβ1, TGFβ2, and TGFβ3. These are upregulated in Marfan's syndrome[1][2] and some human cancers, and play crucial roles in tissue regeneration, cell differentiation, embryonic development, and regulation of the immune system.[3][4] Isoforms of transforming growth factor-beta (TGF-β1) are also thought to be involved in the pathogenesis of pre-eclampsia.[5] They belong to the transforming growth factor beta family. TGFβ receptors are single pass serine/threonine kinase receptors.
Function
These proteins were originally characterized by their capacity to induce oncogenic transformation in a specific cell culture system, rat kidney fibroblasts. Application of the transforming growth factors to normal rat kidney fibroblasts induces the cultured cells to proliferate and overgrow, no longer subject to the normal inhibition caused by contact between cells.[6][7]
See also
References
- ↑ Matt, P; Schoenhoff, F; Habashi, J; Holm, T; Van Erp, C; Loch, D; Carlson, OD; Griswold, BF et al. (Aug 2009). "Circulating transforming growth factor-{beta} in Marfan syndrome". Circulation 120 (6): 526–32. doi:10.1161/CIRCULATIONAHA.108.841981. PMID 19635970.
- ↑ "Inhibiting TGF to help Marfan". http://sciencenow.sciencemag.org/cgi/content/full/2008/625/3?etoc.
- ↑ Xu, Xin; Zheng, Liwei; Yuan, Quan; Zhen, Gehua; Crane, Janet L.; Zhou, Xuedong; Cao, Xu (2018-01-31). "Transforming growth factor-β in stem cells and tissue homeostasis". Bone Research 6: 2. doi:10.1038/s41413-017-0005-4. ISSN 2095-4700. PMID 29423331.
- ↑ Grande, J. P. (1997-01-01). "Role of Transforming Growth Factor- in Tissue Injury and Repair" (in en). Experimental Biology and Medicine 214 (1): 27–40. doi:10.3181/00379727-214-44066. ISSN 1535-3702. PMID 9012358. http://ebm.sagepub.com/lookup/doi/10.3181/00379727-214-44066.
- ↑ Zhang, Jianhong; Dunk, Caroline E.; Shynlova, Oksana; Caniggia, Isabella; Lye, Stephen J. (2018-12-19). "TGFb1 suppresses the activation of distinct dNK subpopulations in preeclampsia". eBioMedicine 39: 531–539. doi:10.1016/j.ebiom.2018.12.015. ISSN 2352-3964. PMID 30579870.
- ↑ Roberts, A B; Anzano, M A; Lamb, L C; Smith, J M; Sporn, M B (1981). "New class of transforming growth factors potentiated by epidermal growth factor: isolation from non-neoplastic tissues." (in en). Proceedings of the National Academy of Sciences 78 (9): 5339–5343. doi:10.1073/pnas.78.9.5339. ISSN 0027-8424. PMID 6975480. Bibcode: 1981PNAS...78.5339R.
- ↑ Strutz, Frank; Zeisberg, Michael; Renziehausen, Anja; Raschke, Birgit; Becker, Volker; Van Kooten, Cees; Müller, Gerhard A. (2001-02-01). "TGF-β1 induces proliferation in human renal fibroblasts via induction of basic fibroblast growth factor (FGF-2)". Kidney International 59 (2): 579–592. doi:10.1046/j.1523-1755.2001.059002579.x. ISSN 0085-2538. PMID 11168939. https://www.sciencedirect.com/science/article/pii/S0085253815475076.
External links
- Tumor growth factor (TGF) citations
- Hoffmann, R.; Valencia, A. (2004). "A gene network for navigating the literature". Nature Genetics 36 (7): 664. doi:10.1038/ng0704-664. PMID 15226743. http://www.ihop-net.org/UniPub/iHOP/gs/125537.html.
- Transforming+Growth+Factors at the US National Library of Medicine Medical Subject Headings (MeSH)
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