Preliminary study of DNA microarray of human placenta gene expression profile.
OBJECTIVE
To prepare human placenta genechip for analyzing differential gene expressions.


METHODS
The target gene amplified from Hybrid Hunter cDNA library was dotted onto the slides by the arrayer (PixSys 5500). Total RNA from K562 cells treated with or without arsenic trioxide was extracted, the mRNA purified and cDNA synthesized. Fluorescent labeling of the samples was performed by restriction display PCR, followed by hybridization with the microarray that was subsequently washed and scanned, with the derived signals analyzed by computer.


RESULTS
A reliable and specific method for preparing and assessing gene expression profile microarray was established, with which a total of 45 differentially expressed gene fragments were isolated.


CONCLUSIONS
The genechips can be helpful in the analysis of differential gene expressions.
Zhu
Li-Na
LN
Institute of Molecular Biology and Key Laboratory for Biochip of PLA, First Military Medical University, Guangzhou 510515, China.
Ma
Wen-Li
WL
Mao
Xiang-Ming
XM
Li
Ling
L
Feng
Chun-Qiong
CQ
Zheng
Wen-Ling
WL
D005260:Female; D020869:Gene Expression Profiling; D015723:Gene Library; D006801:Humans; D020014:K562 Cells; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism
D012333:RNA, Messenger