Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2012
[Research on the expression of hemolysin genes of Leptospira in vivo by genechip].
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Zhao Hui, Bao Lang
Аннотация
OBJECTIVE: To explore the expression of hemolysin genes of Leptospira in infected host.
METHODS: Amplified the gene segment of hemolysin genes from the genome of Leptospira by PCR for gene probe. Manufacture genechip by the VersArray Chipwriter systerm. The total RNAs of Leptospira before and after infection host were extracted, reversely transcribed to cDNA, after the random PCR, the products were marked with HEX and CY5 respectively, and hybridized to genechip to demonstrate the expression of hemolysin genes of Leptospira.
RESULTS: The hemolysin genes LA1029 (Ratio = 0.65), LA1027 (Ratio = 0.53) were up-regulated after infection of host; LA3540 (Ratio = 1.88), LA3937 (Ratio = 5.58), LA1029 (Ratio = 3.00) were up-regulated and LA4004 (Ratio = 0.67) was down-regulated in live than in blood; LA3937 (Ratio = 2.28), LA1029 (Ratio = 2.20) were up-regulated in kidney than in blood.
CONCLUSION: The expression level of hemolysin genes exist observable differences with inducement in vivo and in different organs. These suggested that these genes are probably involved in the pathogenesis and and disease progression.
METHODS: Amplified the gene segment of hemolysin genes from the genome of Leptospira by PCR for gene probe. Manufacture genechip by the VersArray Chipwriter systerm. The total RNAs of Leptospira before and after infection host were extracted, reversely transcribed to cDNA, after the random PCR, the products were marked with HEX and CY5 respectively, and hybridized to genechip to demonstrate the expression of hemolysin genes of Leptospira.
RESULTS: The hemolysin genes LA1029 (Ratio = 0.65), LA1027 (Ratio = 0.53) were up-regulated after infection of host; LA3540 (Ratio = 1.88), LA3937 (Ratio = 5.58), LA1029 (Ratio = 3.00) were up-regulated and LA4004 (Ratio = 0.67) was down-regulated in live than in blood; LA3937 (Ratio = 2.28), LA1029 (Ratio = 2.20) were up-regulated in kidney than in blood.
CONCLUSION: The expression level of hemolysin genes exist observable differences with inducement in vivo and in different organs. These suggested that these genes are probably involved in the pathogenesis and and disease progression.