• 上海交通大學(xué)醫(yī)學(xué)院附屬仁濟(jì)醫(yī)院 心血管外科, 上海 200127;

目的 構(gòu)建nesprin蛋白siRNA慢病毒載體(LV-siNesprin),感染骨髓間充質(zhì)干細(xì)胞(MSCs),觀察nesprin蛋白對(duì)MSCs的影響。 方法 針對(duì)nesprin靶基因序列設(shè)計(jì)并合成4對(duì)miRNA oligo,并將4對(duì)oligo退火成雙鏈DNA,測(cè)序鑒定。將4種miRNA干擾質(zhì)粒(SR-1、SR-2、SR-3、SR-4)轉(zhuǎn)入大鼠血管平滑肌細(xì)胞,用反轉(zhuǎn)錄聚合酶鏈?zhǔn)椒磻?yīng)(RT-PCR)和蛋白印跡法(Western blotting)檢測(cè)干擾效應(yīng),篩選最佳干擾序列;將最佳干擾序列和pDONR221載體進(jìn)行重組反應(yīng),獲得含干擾序列的入門載體,再將入門載體和慢病毒表達(dá)的目的載體pLenti6/V5-DEST進(jìn)行重組反應(yīng)獲得含干擾序列的LV-siNesprin+綠色熒光蛋白(GFP),包裝慢病毒,測(cè)定病毒滴度。LV-siNesprin+GFP轉(zhuǎn)染MSCs,Western blotting鑒定比較nesprin蛋白表達(dá)情況(分為L(zhǎng)V-siNesprin+GFP組、GFP對(duì)照組和正常細(xì)胞組),用4,6-二脒基-2-苯基吲哚(DAPI)染色觀察細(xì)胞核形態(tài)改變和四甲基偶氮唑鹽(MTT)法檢測(cè)MSCs感染LV-siNesprin后24 h、48 h、72 h和96 h的增殖情況(分為L(zhǎng)V-siNesprin+GFP組、GFP對(duì)照組和正常細(xì)胞組)?!〗Y(jié)果 測(cè)序證實(shí)合成的4對(duì)miRNA oligo正確,RT-PCR和Western blotting篩選出最佳干擾miRNA質(zhì)粒SR-3,成功構(gòu)建LV-siNesprin,包裝慢病毒,病毒懸液的活性滴度為1×106 ifu/ml。LV-siNesprin轉(zhuǎn)染MSCs后,nesprin蛋白表達(dá)明顯下降,出現(xiàn)細(xì)胞核融合、核碎裂等形態(tài)學(xué)改變;MTT法檢測(cè)顯示,LV-siNesprin+GFP組MSCs增殖速度較GFP對(duì)照組和正常細(xì)胞組減慢。 結(jié)論 Nesprin蛋白對(duì)MSCs核膜穩(wěn)定維持核膜空間結(jié)構(gòu)起作用,并利于細(xì)胞增殖更新。

引用本文: 楊文鋼,薛松,連鋒,汪永義,胡振雷,朱洪生. Nesprin蛋白對(duì)骨髓間充質(zhì)干細(xì)胞的影響. 中國(guó)胸心血管外科臨床雜志, 2012, 19(4): 408-413. doi: 復(fù)制

1.  Chen X, Katakowski M, Li Y, et al. Human bone marrow stromal cell cultures conditioned by traumatic brain tissue extracts:growth factor production. J Neurosci Res, 2002, 69 (5):687-691.
2.  朱洪生, 連鋒, 朱偉, 等. 骨髓間質(zhì)干細(xì)胞體外轉(zhuǎn)化為心肌細(xì)胞的實(shí)驗(yàn)研究. 上海第二醫(yī)科大學(xué)學(xué)報(bào), 2002, 22 (5):391-395..
3.  Makino S, Fukuda K, Miyoshi S, et al. Cardiomyocytes can be generated from marrow stromal cells in vitro. J Clin Invest, 1999, 103 (5):697-705.
4.  Rando OJ, Zhao K, Crabtree GR. Searching for a function for nuclear actin. Trends Cell Biol, 2000, 10 (3):92-97.
5.  Zhang Q, Skepper JN, Yang F, et al. Nesprins:a novel family of spectrin-repeat-containing proteins that localize to the nuclear membrane in multiple tissues. J Cell Sci, 2001, 114 (Pt 24):4485-4498.
6.  Zhang Q, Ragnauth CD, Skepper JN, et al. Nesprin-2 is a multi-isomeric protein that binds lamin and emerin at the nuclear envelope and forms a subcellular network in skeletal muscle. J Cell Sci, 2005, 118 (Pt 4):673-687.
7.  Lei K, Zhang X, Ding X, et al. SUN1 and SUN2 play critical but partially redundant roles in anchoring nuclei in skeletal muscle cells in mice. Proc Natl Acad Sci U S A, 2009, 106 (25):10207-10212.
8.  Olins AL, Hoang TV, Zwerger M, et al. The LINC-less granulocyte nucleus. Eur J Cell Biol, 2009, 88 (4):203-214.
9.  Kobayashi Y, Katanosaka Y, Iwata Y, et al. Identification and characterization of GSRP-56, a novel Golgi-localized spectrin repeat-containing protein. Exp Cell Res, 2006, 312 (16):3152-3164.
10.  Gough LL, Beck KA. The spectrin family member Syne-1 functions in retrograde transport from Golgi to ER. Biochim Biophys Acta, 2004, 1693 (1):29-36.
11.  Apel ED, Lewis RM, Grady RM, et al. Syne-1, a dystrophin- and klarsicht-related protein associated with synaptic nuclei at the neuromuscular junction. J Biol Chem, 2000, 275 (41):31986-31995.
12.  Gruenbaum, Y GY, Meyuhas R, et al. The nuclear lamina and its functions in the nucleus. Int Rev Cytol, 2003, 226:1-62.
13.  Zhang Q, Bethmann C, Worth NF, et al. Nesprin-1 and -2 are involved in the pathogenesis of Emery Dreifuss muscular dystrophy and are critical for nuclear envelope integrity. Hum Mol Genet, 2007, 16 (23):2816-2833.
14.  Puckelwartz MJ, Kessler EJ, Kim G, et al. Nesprin-1 mutations in human and murine cardiomyopathy. J Mol Cell Cardiol, 2010, 48(4):600-608.
15.  Farhana H, Mazzeo D, Patel JT, et al. Mammalian SUN protein interaction networks at the inner nuclear membrane and their role in laminopathy disease processes. J Biol Chem, 2010, 285 (5):3487-3498.
16.  Zhang X, Lei K, Yuan X, et al. SUN1/2 and Syne/nesprin-1/2 complexes connect centrosome to the nucleus during neurogenesis and neuronal migration in mice. Neuron, 2009, 64 (2):173-187.
  1. 1.  Chen X, Katakowski M, Li Y, et al. Human bone marrow stromal cell cultures conditioned by traumatic brain tissue extracts:growth factor production. J Neurosci Res, 2002, 69 (5):687-691.
  2. 2.  朱洪生, 連鋒, 朱偉, 等. 骨髓間質(zhì)干細(xì)胞體外轉(zhuǎn)化為心肌細(xì)胞的實(shí)驗(yàn)研究. 上海第二醫(yī)科大學(xué)學(xué)報(bào), 2002, 22 (5):391-395..
  3. 3.  Makino S, Fukuda K, Miyoshi S, et al. Cardiomyocytes can be generated from marrow stromal cells in vitro. J Clin Invest, 1999, 103 (5):697-705.
  4. 4.  Rando OJ, Zhao K, Crabtree GR. Searching for a function for nuclear actin. Trends Cell Biol, 2000, 10 (3):92-97.
  5. 5.  Zhang Q, Skepper JN, Yang F, et al. Nesprins:a novel family of spectrin-repeat-containing proteins that localize to the nuclear membrane in multiple tissues. J Cell Sci, 2001, 114 (Pt 24):4485-4498.
  6. 6.  Zhang Q, Ragnauth CD, Skepper JN, et al. Nesprin-2 is a multi-isomeric protein that binds lamin and emerin at the nuclear envelope and forms a subcellular network in skeletal muscle. J Cell Sci, 2005, 118 (Pt 4):673-687.
  7. 7.  Lei K, Zhang X, Ding X, et al. SUN1 and SUN2 play critical but partially redundant roles in anchoring nuclei in skeletal muscle cells in mice. Proc Natl Acad Sci U S A, 2009, 106 (25):10207-10212.
  8. 8.  Olins AL, Hoang TV, Zwerger M, et al. The LINC-less granulocyte nucleus. Eur J Cell Biol, 2009, 88 (4):203-214.
  9. 9.  Kobayashi Y, Katanosaka Y, Iwata Y, et al. Identification and characterization of GSRP-56, a novel Golgi-localized spectrin repeat-containing protein. Exp Cell Res, 2006, 312 (16):3152-3164.
  10. 10.  Gough LL, Beck KA. The spectrin family member Syne-1 functions in retrograde transport from Golgi to ER. Biochim Biophys Acta, 2004, 1693 (1):29-36.
  11. 11.  Apel ED, Lewis RM, Grady RM, et al. Syne-1, a dystrophin- and klarsicht-related protein associated with synaptic nuclei at the neuromuscular junction. J Biol Chem, 2000, 275 (41):31986-31995.
  12. 12.  Gruenbaum, Y GY, Meyuhas R, et al. The nuclear lamina and its functions in the nucleus. Int Rev Cytol, 2003, 226:1-62.
  13. 13.  Zhang Q, Bethmann C, Worth NF, et al. Nesprin-1 and -2 are involved in the pathogenesis of Emery Dreifuss muscular dystrophy and are critical for nuclear envelope integrity. Hum Mol Genet, 2007, 16 (23):2816-2833.
  14. 14.  Puckelwartz MJ, Kessler EJ, Kim G, et al. Nesprin-1 mutations in human and murine cardiomyopathy. J Mol Cell Cardiol, 2010, 48(4):600-608.
  15. 15.  Farhana H, Mazzeo D, Patel JT, et al. Mammalian SUN protein interaction networks at the inner nuclear membrane and their role in laminopathy disease processes. J Biol Chem, 2010, 285 (5):3487-3498.
  16. 16.  Zhang X, Lei K, Yuan X, et al. SUN1/2 and Syne/nesprin-1/2 complexes connect centrosome to the nucleus during neurogenesis and neuronal migration in mice. Neuron, 2009, 64 (2):173-187.