Small-sample total RNA purification: laser capture microdissection and cultured cell applications.

Abstract:

:Gene expression studies require analysis of RNA, but isolation of total RNA from very small samples by traditional methods can be difficult and inefficient. The Absolutely RNA microprep kit provides a convenient method for isolating total RNA from small numbers of cells such as those harvested by laser capture microdissection (LCM). The protocol includes binding of RNA to a solid support, thus eliminating the need for organic extraction and alcohol precipitation. DNase digestion on the solid support reduces or eliminates DNA contamination and minimizes RNA handling. Efficient washing removes contaminants, and elution in a small volume of buffer results in high-purity RNA at a concentration appropriate for demanding applications such as RT-PCR. RNA isolated from as few as 200 laser capture microdissected brain tumor cells resulted in detection of low, medium, and highly expressed genes by conventional and real-time RT-PCR.

journal_name

Biotechniques

journal_title

BioTechniques

authors

Dolter KE,Braman JC

doi

10.2144/01306pf01

subject

Has Abstract

pub_date

2001-06-01 00:00:00

pages

1358-61

issue

6

eissn

0736-6205

issn

1940-9818

journal_volume

30

pub_type

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