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1. Linhua Liu,Yiguo Jiang, Hongyu Zhang, Anne R. Greenlee, Rian Yu and Qiaoyuan Yang. MiR-22 functions as a micro-oncogene in transformed human bronchial epithelial cells induced by anti-benzo[a]pyrene-7,8-diol-9,10-epoxide.Toxicology in vitro.2010; PMID: 20170724 2. Linhua Liu,Yiguo Jiang,Hongyu Zhang,Anne R.Greenlee and Zhiyuan Han.Overexpressed miR-494 down-regulates PTEN gene expression in cells transformed by anti-benzo(a)pyrene-trans-7,8-dihydrodiol-9,10-epoxide.Life Sciences.2010;86(5-6):192-198. ¶àл£¡ |
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×÷Õß: Liu LH (Liu, Linhua)1, Jiang YG (Jiang, Yiguo)1, Zhang HY (Zhang, Hongyu)3, Greenlee AR (Greenlee, Anne R.)2, Han ZY (Han, Zhiyuan)1 À´Ô´³ö°æÎï: LIFE SCIENCES ¾í: 86 ÆÚ: 5-6 Ò³: 192-198 ³ö°æÄê: JAN 30 2010 ±»ÒýƵ´Î: 0 ²Î¿¼ÎÄÏ×: 38 ÒýÖ¤¹ØÏµÍ¼ ÕªÒª: Aims: We investigated the functionality of miR-494 in anti-benzo(a)pyrene-trans-7,8-dihydrodiol-9,10-epoxide (anti-BPDE)-transformed human bronchial epithelial cell 16HBE to reveal its potential target coding-gene. Main methods: The expression of mature miR-494 in cells was detected by miRNA-specific quantitative real-time polymerase chain reaction (QRT-PCR). QRT-PCR and Western blot were used to identify the expression of phosphatase and tensin homolog (PTEN) mRNA and protein. Following activation or inhibition of mature miRNA expression with precursors or antisense inhibitors, PTEN expression, luciferase activities, cell apoptosis, cell growth in soft agar and cell motility were analyzed. Key findings: The expression of miR-494 increased while PTEN protein appeared to be lower in malignant transformed 16HBE cells. Enforced miR-494 level decreased PTEN protein expression compared to a negative precursor control group. Inhibition of miR-494 expression increased PTEN protein expression compared to negative inhibitor control group. Decreased expression of miR-494 increased caspase-3/7 activities in transformed 16HBE cells, and increased expression of miR-494 decreased this activity. Inhibition of miR-494 also decreased the malignancy of transformed cells. Significance: MiR-494 regulates the expression of PTEN post-transcriptionally and functions as a micro-oncogene in carcinogenesis induced by anti-BPDE. MiR-494 may be a useful target for gene therapy. (C) 2009 Elsevier Inc. All rights reserved. ÎÄÏ×ÀàÐÍ: Article ÓïÑÔ: English ×÷Õ߹ؼü´Ê: Anti-BPDE; Cell transformation; MicroRNA; MiR-494; PTEN KeyWords Plus: LUNG-CANCER CELLS; MICRORNA EXPRESSION; PHOSPHORYLATED AKT; GROWTH; PROGNOSIS; CARCINOMA; APOPTOSIS; PROFILES; MIR-21; MIRNAS ͨѶ×÷ÕßµØÖ·: Jiang, YG (ͨѶ×÷Õß), Guangzhou Med Univ, Inst Chem Carcinogenesis, State Key Lab Resp Dis, 195 Dongfengxi Rd, Guangzhou 510182, Guangdong Peoples R China µØÖ·: 1. Guangzhou Med Univ, Inst Chem Carcinogenesis, State Key Lab Resp Dis, Guangzhou 510182, Guangdong Peoples R China 2. Jackson Lab, Stem Cell & Primary Cell Facil, Bar Harbor, ME 04609 USA 3. Sun Yat Sen Univ, Dept Med Oncol, Affiliated Hosp 1, Zhuhai 519000, Peoples R China µç×ÓÓʼþµØÖ·: jiangyiguo@yahoo.com »ù½ð×ÊÖúÖÂл: »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ National Natural Science Foundation of China 30571546 30771780 Scientific Research Foundation of the State Education Ministry for Returned Overseas Chinese Scholars 2007-24 Natural Science Foundation of Guangdong Province 07117550 9251018201000004 Natural Science Key Program of Higher Education Institutions of Guangdong Province, China 06Z021 Science and Technology Program of Guangzhou Bureau of Education, China 08A093 [ÏÔʾ»ù½ð×ÊÖúÐÅÏ¢] This work was supported by the National Natural Science Foundation of China (30571546, 30771780), the Scientific Research Foundation of the State Education Ministry for Returned Overseas Chinese Scholars (2007-24), the Natural Science Foundation of Guangdong Province (07117550, 9251018201000004), the Natural Science Key Program of Higher Education Institutions of Guangdong Province, China (06Z021) and the Science and Technology Program of Guangzhou Bureau of Education, China (08A093). ³ö°æÉÌ: PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND IDS ºÅ: 552UC ISSN: 0024-3205 DOI: 10.1016/j.lfs.2009.12.002 |
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yicaoting
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lhliu2087(½ð±Ò+1):лл²ÎÓë
lhliu2087(½ð±Ò+2): 2010-03-03 20:42
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lhliu2087(½ð±Ò+2): 2010-03-03 20:42
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2¥ûÓиø³ö¹Ø¼üµÄSCI¼ìË÷ºÅ£¬ÍêÕûµÄÐÅÏ¢ÈçÏ£º FN ISI Export Format VR 1.0 PT J AU Liu, LH Jiang, YG Zhang, HY Greenlee, AR Han, ZY AF Liu, Linhua Jiang, Yiguo Zhang, Hongyu Greenlee, Anne R. Han, Zhiyuan TI Overexpressed miR-494 down-regulates PTEN gene expression in cells transformed by anti-benzo(a)pyrene-trans-7,8-dihydrodiol-9,10-epoxide SO LIFE SCIENCES LA English DT Article DE Anti-BPDE; Cell transformation; MicroRNA; MiR-494; PTEN ID LUNG-CANCER CELLS; MICRORNA EXPRESSION; PHOSPHORYLATED AKT; GROWTH; PROGNOSIS; CARCINOMA; APOPTOSIS; PROFILES; MIR-21; MIRNAS AB Aims: We investigated the functionality of miR-494 in anti-benzo(a)pyrene-trans-7,8-dihydrodiol-9,10-epoxide (anti-BPDE)-transformed human bronchial epithelial cell 16HBE to reveal its potential target coding-gene. Main methods: The expression of mature miR-494 in cells was detected by miRNA-specific quantitative real-time polymerase chain reaction (QRT-PCR). QRT-PCR and Western blot were used to identify the expression of phosphatase and tensin homolog (PTEN) mRNA and protein. Following activation or inhibition of mature miRNA expression with precursors or antisense inhibitors, PTEN expression, luciferase activities, cell apoptosis, cell growth in soft agar and cell motility were analyzed. Key findings: The expression of miR-494 increased while PTEN protein appeared to be lower in malignant transformed 16HBE cells. Enforced miR-494 level decreased PTEN protein expression compared to a negative precursor control group. Inhibition of miR-494 expression increased PTEN protein expression compared to negative inhibitor control group. Decreased expression of miR-494 increased caspase-3/7 activities in transformed 16HBE cells, and increased expression of miR-494 decreased this activity. Inhibition of miR-494 also decreased the malignancy of transformed cells. Significance: MiR-494 regulates the expression of PTEN post-transcriptionally and functions as a micro-oncogene in carcinogenesis induced by anti-BPDE. MiR-494 may be a useful target for gene therapy. (C) 2009 Elsevier Inc. All rights reserved. C1 [Liu, Linhua; Jiang, Yiguo; Han, Zhiyuan] Guangzhou Med Univ, Inst Chem Carcinogenesis, State Key Lab Resp Dis, Guangzhou 510182, Guangdong, Peoples R China. [Greenlee, Anne R.] Jackson Lab, Stem Cell & Primary Cell Facil, Bar Harbor, ME 04609 USA. [Zhang, Hongyu] Sun Yat Sen Univ, Dept Med Oncol, Affiliated Hosp 1, Zhuhai 519000, Peoples R China. RP Jiang, YG, Guangzhou Med Univ, Inst Chem Carcinogenesis, State Key Lab Resp Dis, 195 Dongfengxi Rd, Guangzhou 510182, Guangdong, Peoples R China. EM jiangyiguo@yahoo.com FU National Natural Science Foundation of China [30571546, 30771780]; Scientific Research Foundation of the State Education Ministry for Returned Overseas Chinese Scholars [2007-24]; Natural Science Foundation of Guangdong Province [07117550, 9251018201000004]; Natural Science Key Program of Higher Education Institutions of Guangdong Province, China [06Z021]; Science and Technology Program of Guangzhou Bureau of Education, China [08A093] FX This work was supported by the National Natural Science Foundation of China (30571546, 30771780), the Scientific Research Foundation of the State Education Ministry for Returned Overseas Chinese Scholars (2007-24), the Natural Science Foundation of Guangdong Province (07117550, 9251018201000004), the Natural Science Key Program of Higher Education Institutions of Guangdong Province, China (06Z021) and the Science and Technology Program of Guangzhou Bureau of Education, China (08A093). NR 38 TC 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0024-3205 J9 LIFE SCI JI Life Sci. PD JAN 30 PY 2010 VL 86 IS 5-6 BP 192 EP 198 DI 10.1016/j.lfs.2009.12.002 PG 7 SC Medicine, Research & Experimental; Pharmacology & Pharmacy GA 552UC UT ISI:000274318100007 ER EF ÆäÖÐUT ISI:000274318100007£¬²ÅÊÇΨһµÄSCI¼ìË÷ºÅ£¡ |
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