Kasiri Sahba, Ansari Khairul I, Hussain Imran, Bhan Arunoday, Mandal Subhrangsu S
Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019.
RSC Adv. 2013 Jan 1;3(10):3260-3269. doi: 10.1039/C2RA22006G. Epub 2012 Dec 18.
HOXC13 is a homeobox containing gene that plays crucial roles in hair development and origin of replication. Herein, we investigated the biochemical functions of HOXC13 and explored its potential roles in tumor cell viability. We have designed a phosphorothioate based antisense-oligonucleotide that specifically knockdown HOXC13 in cultured cells. Cell viability and cytotoxicity assays demonstrated that HOXC13 is essential for cell growth and viability. Antisense-mediated knockdown of HOXC13 affected the cell viability and induced apoptosis in cultured tumor cells. HOXC13 regulates the expression of cyclins and antisense-mediated knockdown of HOXC13 resulted in cell cycle arrest and apoptosis in colon cancer cells. Finally over expression of HOXC13 resulted in 3D-colony formation in soft-agar assay indicating its potential roles in cell proliferation and tumorigenesis.
HOXC13是一个含有同源盒的基因,在毛发发育和复制起点中发挥关键作用。在此,我们研究了HOXC13的生化功能,并探讨了其在肿瘤细胞活力中的潜在作用。我们设计了一种基于硫代磷酸酯的反义寡核苷酸,可在培养细胞中特异性敲低HOXC13。细胞活力和细胞毒性测定表明,HOXC13对细胞生长和活力至关重要。反义介导的HOXC13敲低影响细胞活力,并在培养的肿瘤细胞中诱导凋亡。HOXC13调节细胞周期蛋白的表达,反义介导的HOXC13敲低导致结肠癌细胞的细胞周期停滞和凋亡。最后,HOXC13的过表达导致软琼脂试验中3D集落形成,表明其在细胞增殖和肿瘤发生中的潜在作用。