TY - JOUR
T1 - Quantitative amplification of genomic DNA from histological tissue sections after staining with nuclear dyes and laser capture microdissection
AU - Ehrig, T.
AU - Abdulkadir, S. A.
AU - Dintzis, S. M.
AU - Milbrandt, J.
AU - Watson, M. A.
N1 - Funding Information:
Supported by Department of Defense grant DAMD 17–99-1–9026 (to J. M.) , National Cancer Institute grant K08CA8790101 (to S. A. A.) , and the Siteman Cancer Center.
PY - 2001
Y1 - 2001
N2 - Laser capture microdissection (LCM) allows the selective sampling of tissue from histological sections. A prerequisite for this technique is the availability of histological dyes that do not interfere with downstream analysis of the sampled genetic material. We have examined the effect of four histological nuclear dyes (methyl green, hematoxylin, toluidine blue O, azure B) on TaqMan polymerase chain reaction amplification of β-actin genomic DNA prepared from fixed and frozen tissue. Tissue sampled from the histological sections by manual dissection was compared with tissue sampled by LCM. As previously reported, when manually dissected tissue sections were analyzed, polymerase chain reaction amplification of DNA after hematoxylin staining was inferior to that after staining with the other dyes. In contrast, when tissue sampled by LCM was examined, DNA recovery after hematoxylin staining was equivalent to the recovery after methyl green staining. We conclude that DNA recovery from LCM-sampled tissue is independent of the histological stain chosen to highlight nuclear detail.
AB - Laser capture microdissection (LCM) allows the selective sampling of tissue from histological sections. A prerequisite for this technique is the availability of histological dyes that do not interfere with downstream analysis of the sampled genetic material. We have examined the effect of four histological nuclear dyes (methyl green, hematoxylin, toluidine blue O, azure B) on TaqMan polymerase chain reaction amplification of β-actin genomic DNA prepared from fixed and frozen tissue. Tissue sampled from the histological sections by manual dissection was compared with tissue sampled by LCM. As previously reported, when manually dissected tissue sections were analyzed, polymerase chain reaction amplification of DNA after hematoxylin staining was inferior to that after staining with the other dyes. In contrast, when tissue sampled by LCM was examined, DNA recovery after hematoxylin staining was equivalent to the recovery after methyl green staining. We conclude that DNA recovery from LCM-sampled tissue is independent of the histological stain chosen to highlight nuclear detail.
UR - http://www.scopus.com/inward/record.url?scp=0035057639&partnerID=8YFLogxK
U2 - 10.1016/S1525-1578(10)60645-9
DO - 10.1016/S1525-1578(10)60645-9
M3 - Article
C2 - 11227068
AN - SCOPUS:0035057639
SN - 1525-1578
VL - 3
SP - 22
EP - 25
JO - Journal of Molecular Diagnostics
JF - Journal of Molecular Diagnostics
IS - 1
ER -