PMID- 25001930 OWN - NLM STAT- MEDLINE DCOM- 20140930 LR - 20140708 IS - 1007-8738 (Print) IS - 1007-8738 (Linking) VI - 30 IP - 7 DP - 2014 Jul TI - [Knock-down of CARMA1 in K562 cells inhibits the invasion and metastasis of K562 cells]. PG - 691-5 AB - OBJECTIVE: To study the effects of caspase recruitment domain membrane-associated guanylate kinase protein 1 (CARMA1) knock-down using RNAi technology on cell proliferation, colony forming, invasion and metastasis of the K562 cells. METHODS: K562 cells with stably-silenced CARMA1 gene was constructed by lentivirus-mediated RNAi technology. CARMA1 mRNA and protein levels were respectively detected by reverse transcription PCR (RT-PCR) and Western blotting. Cell proliferation was analyzed by trypan blue exclusion; colony forming was detected by colony forming assay; invasion and metastasis in vitro were determined with Transwell(R) assay with or without matrigel. Signaling pathway molecules were detected by RT-PCR and Western blotting. RESULTS: Six cell lines with knocked-down gene were successfully constructed. Of them, one was negative control (K562/sh-eGFP), and the other five were CARMA1-silenced cells. K562/shCARMA 1-93 showed the greatest inhibition of CARMA 1 gene and protein expressions. Trypan blue exclusion and colony forming assay showed that the ability of cell proliferation and colony forming were significantly suppressed in K562/shCARMA 1-93 (P<0.01). Compared with blank control K562 and negative control K562/sh-eGFP, the growth inhibition rates were respectively 29.3% and 28.6%; the colony forming inhibition rates were respectively 37.6% and 34.1%; Transwell(R) assay with or without matrigel showed that the number of K562/shCARMA1-93 which passed through the membrane was obviously lower than that of the control group (P<0.01). The expressions of nucleic transcription factor-kappaB (NF-kappaB) and early growth response 1 (EGR1) were reduced following the inhibition of CARMA1. CONCLUSION: CARMA1 gene knock-down had an impact on cell proliferation, colony forming, invasion and metastasis of K562 cells, which is possibly related to the inhibition of NF-kappaB and JNK/EGR-1 signaling pathways. FAU - Liu, Fang AU - Liu F AD - Immuno-Oncology Laboratory, Fujian Provincial Cancer Hospital, Teaching Hospital, Fujian Medical University; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China. FAU - Wang, Lingyan AU - Wang L AD - Immuno-Oncology Laboratory, Fujian Provincial Cancer Hospital, Teaching Hospital, Fujian Medical University; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China. FAU - Li, Jieyu AU - Li J AD - Immuno-Oncology Laboratory, Fujian Provincial Cancer Hospital, Teaching Hospital, Fujian Medical University; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China. FAU - Chen, Shuping AU - Chen S AD - Immuno-Oncology Laboratory, Fujian Provincial Cancer Hospital, Teaching Hospital, Fujian Medical University; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China. FAU - Ye, Yunbin AU - Ye Y AD - Immuno-Oncology Laboratory, Fujian Provincial Cancer Hospital, Teaching Hospital, Fujian Medical University; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi JT - Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology JID - 101139110 RN - 0 (CARD Signaling Adaptor Proteins) RN - 0 (EGR1 protein, human) RN - 0 (Early Growth Response Protein 1) RN - 0 (Transcription Factor RelA) RN - EC 4.6.1.2 (CARD11 protein, human) RN - EC 4.6.1.2 (Guanylate Cyclase) SB - IM MH - Blotting, Western MH - CARD Signaling Adaptor Proteins/*genetics/metabolism MH - Cell Movement/*genetics MH - *Cell Proliferation MH - Early Growth Response Protein 1/genetics/metabolism MH - Guanylate Cyclase/*genetics/metabolism MH - HEK293 Cells MH - Humans MH - K562 Cells MH - Neoplasm Invasiveness MH - Neoplasm Metastasis MH - *RNA Interference MH - Reverse Transcriptase Polymerase Chain Reaction MH - Signal Transduction/genetics MH - Transcription Factor RelA/genetics/metabolism EDAT- 2014/07/09 06:00 MHDA- 2014/10/01 06:00 CRDT- 2014/07/09 06:00 PHST- 2014/07/09 06:00 [entrez] PHST- 2014/07/09 06:00 [pubmed] PHST- 2014/10/01 06:00 [medline] PST - ppublish SO - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2014 Jul;30(7):691-5.