Transcription factor GATA-6, also known as GATA-binding factor 6 (GATA6), is protein that in humans is encoded by the GATA6gene.[1] The gene product preferentially binds (A/T/C)GAT(A/T)(A) of the consensus binding sequence.[2]
GATA-6, a zinc finger transcription factor, is important in the endodermal differentiation of organ tissues.[4] It is also indicated in proper lung development by controlling the late differentiation stages of alveolar epithelium and aquaporin-5 promoter activation. Furthermore, GATA-6 has been linked to the production of LIF, a cytokine that encourages proliferation of endodermal embryonic stem cells and blocks early epiblast differentiation. If left unregulated in the developing embryo, this cytokine production and chemical signal contributes to the phenotypes discussed further below.[5]
Upon the disruption of GATA-6 in an embryo, the distal lung epithelial development is stunted in transgenic mice models[4] The progenitor cells, or stem cells, for alveolar epithelial tissues develop and are specified appropriately, however further differentiation does not occur. Also the distal-proximal bronchiole development is affected, resulting in a reduced quantity of airway exchange sites.[4]
This branching deficit, which will cause bilateral pulmonary hypoplasia after birth, has been locally associated with areas lacking differentiated alveolar epithelium, implicating this phenotype as inherent to endodermal function, and thus may be indirectly linked to improper GATA-6 expression.[6][7] That is, a deficit of bronchiole branching may not be a result of direct transcriptional error in GATA-6, but rather a side effect of such an error.
↑Sakai Y, Nakagawa R, Sato R, Maeda M (1998). "Selection of DNA binding sites for human transcriptional regulator GATA-6". Biochem Biophys Res Commun. 250 (3): 682–688. doi:10.1006/bbrc.1998.9374. PMID9784406.
↑ 4.04.14.2Yang H, Lu MM, Zhang L, Whitsett JA, Morrisey EE (May 2002). "GATA6 regulates differentiation of distal lung epithelium". Development. 129 (9): 2233–46. PMID11959831.
↑Morgani SM, Brickman JM (October 2015). "LIF supports primitive endoderm expansion during pre-implantation development". Development. 142 (20): 3488–99. doi:10.1242/dev.125021. PMID26395492.
↑Keijzer R, van Tuyl M, Meijers C, Post M, Tibboel D, Grosveld F, Koutsourakis M (February 2001). "The transcription factor GATA6 is essential for branching morphogenesis and epithelial cell differentiation during fetal pulmonary development". Development. 128 (4): 503–11. PMID11171334.
↑Rennie J (2012). Rennie & Robertson's Textbook on Neonatology. Elsevier Health Sciences. ISBN978-0-7020-3479-4.
Further reading
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Suzuki E, Evans T, Lowry J, Truong L, Bell DW, Testa JR, Walsh K (1997). "The human GATA-6 gene: structure, chromosomal location, and regulation of expression by tissue-specific and mitogen-responsive signals". Genomics. 38 (3): 283–90. doi:10.1006/geno.1996.0630. PMID8975704.
Huggon IC, Davies A, Gove C, Moscoso G, Moniz C, Foss Y, Farzaneh F, Towner P (1997). "Molecular cloning of human GATA-6 DNA binding protein: high levels of expression in heart and gut". Biochim. Biophys. Acta. 1353 (2): 98–102. doi:10.1016/s0167-4781(97)00049-3. PMID9294001.
Yoshida T, Sato R, Mahmood S, Kawasaki S, Futai M, Maeda M (1997). "GATA-6 DNA binding protein expressed in human gastric adenocarcinoma MKN45 cells". FEBS Lett. 414 (2): 333–7. doi:10.1016/S0014-5793(97)01017-X. PMID9315713.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Wada H, Hasegawa K, Morimoto T, Kakita T, Yanazume T, Sasayama S (2000). "A p300 protein as a coactivator of GATA-6 in the transcription of the smooth muscle-myosin heavy chain gene". J. Biol. Chem. 275 (33): 25330–5. doi:10.1074/jbc.M000828200. PMID10851229.
Crawford SE, Qi C, Misra P, Stellmach V, Rao MS, Engel JD, Zhu Y, Reddy JK (2002). "Defects of the heart, eye, and megakaryocytes in peroxisome proliferator activator receptor-binding protein (PBP) null embryos implicate GATA family of transcription factors". J. Biol. Chem. 277 (5): 3585–92. doi:10.1074/jbc.M107995200. PMID11724781.
Liu C, Glasser SW, Wan H, Whitsett JA (2002). "GATA-6 and thyroid transcription factor-1 directly interact and regulate surfactant protein-C gene expression". J. Biol. Chem. 277 (6): 4519–25. doi:10.1074/jbc.M107585200. PMID11733512.
Kiiveri S, Liu J, Westerholm-Ormio M, Narita N, Wilson DB, Voutilainen R, Heikinheimo M (2003). "Transcription factors GATA-4 and GATA-6 during mouse and human adrenocortical development". Endocr. Res. 28 (4): 647–50. doi:10.1081/ERC-120016980. PMID12530677.
Nemer G, Nemer M (2003). "Transcriptional activation of BMP-4 and regulation of mammalian organogenesis by GATA-4 and -6". Dev. Biol. 254 (1): 131–48. doi:10.1016/S0012-1606(02)00026-X. PMID12606287.
Abe M, Hasegawa K, Wada H, Morimoto T, Yanazume T, Kawamura T, Hirai M, Furukawa Y, Kita T (2003). "GATA-6 is involved in PPARgamma-mediated activation of differentiated phenotype in human vascular smooth muscle cells". Arterioscler. Thromb. Vasc. Biol. 23 (3): 404–10. doi:10.1161/01.ATV.0000059405.51042.A0. PMID12615657.
Ketola I, Toppari J, Vaskivuo T, Herva R, Tapanainen JS, Heikinheimo M (2003). "Transcription factor GATA-6, cell proliferation, apoptosis, and apoptosis-related proteins Bcl-2 and Bax in human fetal testis". J. Clin. Endocrinol. Metab. 88 (4): 1858–65. doi:10.1210/jc.2002-021647. PMID12679484.
Siltanen S, Heikkilä P, Bielinska M, Wilson DB, Heikinheimo M (2004). "Transcription factor GATA-6 is expressed in malignant endoderm of pediatric yolk sac tumors and in teratomas". Pediatr. Res. 54 (4): 542–6. doi:10.1203/01.PDR.0000081295.56529.E9. PMID12867597.
Liu C, Ikegami M, Stahlman MT, Dey CR, Whitsett JA (2003). "Inhibition of alveolarization and altered pulmonary mechanics in mice expressing GATA-6". Am. J. Physiol. Lung Cell Mol. Physiol. 285 (6): L1246–54. doi:10.1152/ajplung.00443.2002. PMID12909592.
Jimenez P, Saner K, Mayhew B, Rainey WE (2003). "GATA-6 is expressed in the human adrenal and regulates transcription of genes required for adrenal androgen biosynthesis". Endocrinology. 144 (10): 4285–8. doi:10.1210/en.2003-0472. PMID12959982.
Saner KJ, Suzuki T, Sasano H, Pizzey J, Ho C, Strauss JF, Carr BR, Rainey WE (2005). "Steroid sulfotransferase 2A1 gene transcription is regulated by steroidogenic factor 1 and GATA-6 in the human adrenal". Mol. Endocrinol. 19 (1): 184–97. doi:10.1210/me.2003-0332. PMID15388788.
Kiiveri S, Liu J, Heikkilä P, Arola J, Lehtonen E, Voutilainen R, Heikinheimo M (2005). "Transcription factors GATA-4 and GATA-6 in human adrenocortical tumors". Endocr. Res. 30 (4): 919–23. doi:10.1081/ERC-200044149. PMID15666845.