PMID- 19211265 OWN - NLM STAT- MEDLINE DCOM- 20100813 LR - 20211020 IS - 1879-1336 (Electronic) IS - 1054-8807 (Print) IS - 1054-8807 (Linking) VI - 19 IP - 3 DP - 2010 May-Jun TI - Creation, validation, and quantitative analysis of protein expression in vascular tissue microarrays. PG - 136-46 LID - 10.1016/j.carpath.2008.12.007 [doi] AB - BACKGROUND: Tissue microarrays (TMAs) are collections of multiple tissue cores placed in parallel in a single acceptor block and traditionally used to investigate protein expression in neoplastic tissues. We validated the use of TMAs to investigate protein expression in vascular segments. METHODS: Vascular tissues were collected from 100 adult subjects undergoing autopsy. A diverse set of vessels were harvested and arrayed over 17 TMAs. A total of 1377 unique tissues, each with a 1.5-mm feature size, were analyzed using histochemical and immunohistochemical (IHC) diaminobenzidine (DAB) methods. RESULTS: Histomorphometric analysis of vascular disease demonstrated the TMA features captured the majority of the vascular alterations (intimal hyperplasia and atherosclerosis) seen in the original blood vessel section. Measurements of IHC staining intensity based on color deconvolution were used to quantify antigen abundance in defined regions of interest (ROI). Validation was performed using antibodies to connective tissue growth factor (CTGF), receptor for advanced glycation end products (AGER/RAGE), and matrix metalloproteinase 3 (MMP-3). IHC staining was highly correlated between duplicate features from the same vascular site over these three proteins. CONCLUSION: This study validates the use of TMA technology to investigate the vascular wall utilizing staining intensity data. CI - Copyright 2010 Elsevier Inc. All rights reserved. FAU - Halushka, Marc K AU - Halushka MK AD - Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. mhalush1@jhmi.edu FAU - Cornish, Toby C AU - Cornish TC FAU - Lu, Jie AU - Lu J FAU - Selvin, Steve AU - Selvin S FAU - Selvin, Elizabeth AU - Selvin E LA - eng GR - K01 DK076595-03/DK/NIDDK NIH HHS/United States GR - K01 DK076595-04/DK/NIDDK NIH HHS/United States GR - K01 DK076595/DK/NIDDK NIH HHS/United States GR - K01 DK076595-01/DK/NIDDK NIH HHS/United States GR - K01 DK076595-02/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20090211 PL - United States TA - Cardiovasc Pathol JT - Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology JID - 9212060 RN - 0 (Proteins) SB - IM MH - Autopsy MH - Blood Vessels/metabolism/*pathology MH - Female MH - Humans MH - Immunohistochemistry MH - Male MH - Middle Aged MH - Proteins/analysis/*metabolism MH - Tissue Array Analysis/*methods MH - Vascular Diseases/diagnosis/metabolism/*pathology PMC - PMC2866781 MID - NIHMS154414 EDAT- 2009/02/13 09:00 MHDA- 2010/08/14 06:00 PMCR- 2011/05/01 CRDT- 2009/02/13 09:00 PHST- 2008/08/19 00:00 [received] PHST- 2008/11/21 00:00 [revised] PHST- 2008/12/16 00:00 [accepted] PHST- 2009/02/13 09:00 [entrez] PHST- 2009/02/13 09:00 [pubmed] PHST- 2010/08/14 06:00 [medline] PHST- 2011/05/01 00:00 [pmc-release] AID - S1054-8807(08)00188-9 [pii] AID - 10.1016/j.carpath.2008.12.007 [doi] PST - ppublish SO - Cardiovasc Pathol. 2010 May-Jun;19(3):136-46. doi: 10.1016/j.carpath.2008.12.007. Epub 2009 Feb 11.