白血病抑制因子 - 维基百科，自由的百科全书

Leukemia inhibitory factor; 白血病抑制因子
	PDB rendering based on 1LKI.
有效结构
PDB	直系同源检索：PDBe, RCSB
PDB查询代码列表
	1EMR, 1PVH, 2Q7N
标识
代号	LIF; CDF; DIA; HILDA; MLPLI
扩展标识	遗传学：159540 鼠基因：96787 同源基因：1734 GeneCards: LIF Gene
基因本体论描述
分子功能	· RNA polymerase II transcription factor recruiting transcription factor activity; · receptor binding; · cytokine activity; · leukemia inhibitory factor receptor binding; · growth factor activity;
细胞成分	· extracellular space; · cytoplasm;
生物过程	· blood vessel remodeling; · immune response; · multicellular organismal development; · embryo implantation; · positive regulation of cell proliferation; · negative regulation of cell proliferation; · stem cell maintenance; · positive regulation of peptidyl-serine phosphorylation; · positive regulation of peptidyl-serine phosphorylation of STAT protein; · tyrosine phosphorylation of Stat3 protein; · positive regulation of tyrosine phosphorylation of Stat1 protein; · positive regulation of tyrosine phosphorylation of Stat3 protein; · positive regulation of MAPK cascade; · positive regulation of macrophage differentiation; · negative regulation of meiosis; · positive regulation of transcription from RNA polymerase II promoter; · decidualization; · negative regulation of hormone secretion; · lung alveolus development; · muscle organ morphogenesis; · neuron development; · positive regulation of astrocyte differentiation; · leukemia inhibitory factor signaling pathway; · positive regulation of peptidyl-tyrosine phosphorylation; · lung vasculature development; · lung lobe morphogenesis; · trophoblast giant cell differentiation; · spongiotrophoblast differentiation; · negative regulation of ERK1 and ERK2 cascade; · positive regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis; · regulation of metanephric nephron tubule epithelial cell differentiation; · positive regulation of protein localization to nucleus; · positive regulation of histone H3-K27 acetylation;
	Sources: Amigo / QuickGO
RNA表达模式
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直系同源体
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白血病抑制因子（Leukemia inhibitory factor，缩写 LIF）是一種屬於白介素-6大類的細胞因子。它能通過抑制分化影響細胞生长。LIF水平下降會使細胞開始分化。

功能[编辑]

白血病抑制因子能夠誘導骨髓性白血病細胞的末端分化，進而阻止其生長，因而得名。白血病抑制因子還有以下功能：能促進多種細胞的生長與分化，影響骨代謝、惡病質體、神經發育（英语：Neural development），胚胎發育以及炎症作用。受p53調控的白血病抑制因子能促進小鼠和人的胚胎着床^[1]。一篇文章提出重組人白血病抑制因子可能可以提高意外懷孕的婦女（體內胚胎）的着床成功率^[2]。

表達[编辑]

LIF在正常情況下會由囊胚中的滋養層（TE）表達，而其受體LIFR則會由內細胞群（ICM）的細胞表達。胚胎幹細胞取自內細胞群的細胞，在體外培養時就需要額外補充LIF。目前，重組LIF已可以通過基因工程的手段由植物（水稻）產生^[3]。

幹細胞培養[编辑]

幹細胞培養基中大都含有LIF，可用於替代餵養層（feeder layer）細胞，因爲餵養層細胞的主要作用即產生LIF。不表達LIF基因的餵養層細胞難以支持幹細胞的培養^[4]。LIF通過招募信號誘導分子以及轉錄激活因子3（STAT3）促進細胞的自我更新。活化的LIFR能徵募Stat3。隨後，JAK激酶能將其磷酸化。不過LIF和Stat3是不足以阻止細胞分化的，一旦移去培養基中的血清，幹細胞就會分化。在原生多能性幹細胞分化的可逆階段，加入LIF可以使細胞重回原生多能性階段^[5]^[6]^[7]。

參考[编辑]

^ Wenwei Hu, Zhaohui Feng, Angelika K. Teresky1, Arnold J. Levine. p53 regulates maternal reproduction through LIF. Nature. November 29, 2007, 450 (7170): 721–724 [2017-01-27]. PMID 18046411. doi:10.1038/nature05993. （原始内容存档于2017-03-15）.
^ Aghajanova, L. Leukemia inhibitory factor and human embryo implantation. Annals of the New York Academy of Sciences. 2004, 1034: 176–83. PMID 15731310. doi:10.1196/annals.1335.020.
^ Bradford A. Youngblood; et al. Application of recombinant human leukemia inhibitory factor (LIF) produced in rice (Oryza sativa L.) for maintenance of mouse embryonic stem cells. Journal of Biotechnology Volume 172. 2014-02-20: 67–72.
^ Stewart, C. L.; Kaspar, P; Brunet, L. J.; Bhatt, H; Gadi, I; Köntgen, F; Abbondanzo, S. J. Blastocyst implantation depends on maternal expression of leukaemia inhibitory factor. Nature. 1992, 359 (6390): 76–9. PMID 1522892. doi:10.1038/359076a0.
^ Martello, Graziano; Smith, Austin. The Nature of Embryonic Stem Cells. Annual Review Cell Developmental Biology. 2014, 30: 647. doi:10.1146/annurev-cellbio-100913-013116.
^ Kawahara Y, Manabe T, Matsumoto M, Kajiume T, Matsumoto M, Yuge L. Zwaka, Thomas , 编. LIF-Free Embryonic Stem Cell Culture in Simulated Microgravity. PLoS ONE. 2009, 4 (7): e6343 [2017-01-27]. PMC 2710515 . PMID 19626124. doi:10.1371/journal.pone.0006343. （原始内容存档于2014-02-22）.
^ CGS : PTO Finds Stem Cell Patent Anticipated, Obvious in Light of 'Significant Guideposts'. （原始内容存档于2011-10-04）.

拓展閱讀[编辑]

Patterson PH. Leukemia inhibitory factor, a cytokine at the interface between neurobiology and immunology. Proc. Natl. Acad. Sci. U.S.A. 1994, 91 (17): 7833–5. PMC 44497 . PMID 8058719. doi:10.1073/pnas.91.17.7833.
Aghajanova L. Leukemia inhibitory factor and human embryo implantation. Ann. N. Y. Acad. Sci. 2005, 1034: 176–83. PMID 15731310. doi:10.1196/annals.1335.020.
Králícková M, Síma P, Rokyta Z. Role of the leukemia-inhibitory factor gene mutations in infertile women: the embryo-endometrial cytokine cross talk during implantation--a delicate homeostatic equilibrium. Folia Microbiol. (Praha). 2005, 50 (3): 179–86. PMID 16295654. doi:10.1007/BF02931563.
Stahl J, Gearing DP, Willson TA; et al. Structural organization of the genes for murine and human leukemia inhibitory factor. Evolutionary conservation of coding and non-coding regions. J. Biol. Chem. 1990, 265 (15): 8833–41. PMID 1692837.
Bazan JF. Neuropoietic cytokines in the hematopoietic fold. Neuron. 1991, 7 (2): 197–208. PMID 1714745. doi:10.1016/0896-6273(91)90258-2.
Lowe DG, Nunes W, Bombara M; et al. Genomic cloning and heterologous expression of human differentiation-stimulating factor. DNA. 1989, 8 (5): 351–9. PMID 2475312. doi:10.1089/dna.1.1989.8.351.
Sutherland GR, Baker E, Hyland VJ; et al. The gene for human leukemia inhibitory factor (LIF) maps to 22q12. Leukemia. 1989, 3 (1): 9–13. PMID 2491897.
Mori M, Yamaguchi K, Abe K. Purification of a lipoprotein lipase-inhibiting protein produced by a melanoma cell line associated with cancer cachexia. Biochem. Biophys. Res. Commun. 1989, 160 (3): 1085–92. PMID 2730639. doi:10.1016/S0006-291X(89)80114-7.
Gough NM, Gearing DP, King JA; et al. Molecular cloning and expression of the human homologue of the murine gene encoding myeloid leukemia-inhibitory factor. Proc. Natl. Acad. Sci. U.S.A. 1988, 85 (8): 2623–7. PMC 280050 . PMID 3128791. doi:10.1073/pnas.85.8.2623.
Williams RL, Hilton DJ, Pease S; et al. Myeloid leukaemia inhibitory factor maintains the developmental potential of embryonic stem cells. Nature. 1989, 336 (6200): 684–7. PMID 3143916. doi:10.1038/336684a0.
Moreau JF, Donaldson DD, Bennett F; et al. Leukaemia inhibitory factor is identical to the myeloid growth factor human interleukin for DA cells. Nature. 1989, 336 (6200): 690–2. PMID 3143918. doi:10.1038/336690a0.
Yamaguchi M, Miki N, Ono M; et al. Inhibition of growth hormone-releasing factor production in mouse placenta by cytokines using gp130 as a signal transducer. Endocrinology. 1995, 136 (3): 1072–8. PMID 7867561. doi:10.1210/en.136.3.1072.
Schmelzer CH, Harris RJ, Butler D; et al. Glycosylation pattern and disulfide assignments of recombinant human differentiation-stimulating factor. Arch. Biochem. Biophys. 1993, 302 (2): 484–9. PMID 8489250. doi:10.1006/abbi.1993.1243.
Aikawa J, Ikeda-Naiki S, Ohgane J; et al. Molecular cloning of rat leukemia inhibitory factor receptor alpha-chain gene and its expression during pregnancy. Biochim. Biophys. Acta. 1997, 1353 (3): 266–76. PMID 9349722.
Hinds MG, Maurer T, Zhang JG; et al. Solution structure of leukemia inhibitory factor. J. Biol. Chem. 1998, 273 (22): 13738–45. PMID 9593715. doi:10.1074/jbc.273.22.13738.
Toward a complete human genome sequence. Genome Res. 1999, 8 (11): 1097–108. PMID 9847074. doi:10.1101/gr.8.11.1097 (不活跃 2016-12-27).
Tanaka M, Hara T, Copeland NG; et al. Reconstitution of the functional mouse oncostatin M (OSM) receptor: molecular cloning of the mouse OSM receptor beta subunit. Blood. 1999, 93 (3): 804–15. PMID 9920829.
Nakashima K, Yanagisawa M, Arakawa H; et al. Synergistic signaling in fetal brain by STAT3-Smad1 complex bridged by p300. Science. 1999, 284 (5413): 479–82. PMID 10205054. doi:10.1126/science.284.5413.479.
Dunham I, Shimizu N, Roe BA; et al. The DNA sequence of human chromosome 22. Nature. 1999, 402 (6761): 489–95. PMID 10591208. doi:10.1038/990031.