Suppression of lung cancer metastasis-related protein 1 (LCMR1) inhibits the growth of colorectal cancer cells
- 214 Downloads
Lung cancer metastasis-related protein 1 (LCMR1) is a critical subunit of the mediator complex, and plays an important role in the elaborate regulation of gene transcription. However, the functional role of LCMR1 in colorectal carcinoma (CRC) has not been clarified. In this study, LCMR1 expression in CRC specimens was quantified by using the quantitative reverse transcription polymerase chain reaction method. The effect of downregulation of LCMR1 by lentivirus-mediated small hairpin RNA (shRNA) on CRC cell proliferation and tumorigenesis was explored. There was a higher expression of LCMR1 in CRC tissue in comparison with adjacent normal colon tissue (P < 0.05). LCMR1 gene was effectively knocked down in human CRC RKO and DLD-1 cells that infected with lentivirus delivering shRNA against LCMR1, which resulted in inhibition of cell proliferation and augmentation of G0/G1 phase proportion. Moreover, the tumorigenicity of RKO cells was also dramatically inhibited after LCMR1 was knocked down. In conclusion, our results suggest that LCMR1 promotes CRC cell growth, and lentivirus-mediated silencing of LCMR1 may contribute to the gene therapy for CRC.
KeywordsColorectal cancer LCMR1 Proliferation RNA interference
The research was supported by a fund from the Science and Technology Commission of Shanghai Municipality (No: 07DZ1950).
Conflict of interest
- 16.Lesch HP, Laitinen A, Peixoto C, Vicente T, Makkonen KE, Laitinen L, Pikkarainen JT, Samaranayake H, Alves PM, Carrondo MJ, Ylä-Herttuala S, Airenne KJ (2011) Production and purification of lentiviral vectors generated in 293T suspension cells with baculoviral vectors. Gene Ther. doi: 10.1038/gt.2010.162
- 30.Manilla P, Rebello T, Afable C, Lu X, Slepushkin V, Humeau LM, Schonely K, Ni Y, Binder GK, Levine BL, MacGregor RR, June CH, Dropulic B (2005) Regulatory considerations for novel gene therapy products: a review of the process leading to the first clinical lentiviral vector. Hum Gene Ther 16:17–25PubMedCrossRefGoogle Scholar