Immunohistochemical Estimates of Angiogenesis, Proliferative Activity, p53 Expression, and Multiple Drug Resistance Have No Prognostic Impact in Osteosarcoma: A Comparative Clinicopathological Investigation
Joint Authors
Funder, Anette Mariane Daa
Keller, Johnny Ø.
Sorensen, Flemming Brandt
Christensen, Mariann
Vaeth, Michael
Jensen, Kenneth
Hager, Henrik
Safwat, Akmal
Source
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-12-31
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Purpose.
To investigate angiogenesis, multiple drug resistance (MDR) and proliferative activity as prognostic variables in patients suffering from osteosarcoma.
Methods.
Histologic biopsies from 117 patients treated in the period from 1972 through 1999 were immunohistologically investigated regarding angiogenesis (CD34), proliferative activity (MIB-1), and the expression of p53 and MDR (P-glycoprotein (Pgp); clones JSB-1, C494, and MRK16).
Quantitative and semiquantitative scores of immunoreactive cells were analyzed statistically along with retrospectively obtained clinicopathologic variables.
Results.
Chemotherapy reduced the rate of amputations (P=.00002).
The Pgp was overexpressed (score ≥2) in 48% of the primary, diagnostic biopsies, and high Pgp correlated with high Pgp in postsurgical specimens (P=.003).
In contrast, no such associations were disclosed for estimates of angiogenesis (P=.64) and p53 (P>.32), whereas the MIB-1 index was reduced in the post-chemotherapy specimens (P=.02).
The overall, disease-specific survival was 47%, increasing to 54% in patients receiving pre-operative chemotherapy.
Statistical analyses showed prognostic impact exclusively by patient age and type of osteosarcoma.
Discussion.
The studied series of patients documented already prior to the chemotherapy era, a rather excellent survival and estimates of angiogenesis, proliferation, p53, and Pgp expressions, did not demonstrate sufficient power to serve as predictors of treatment response or survival.
American Psychological Association (APA)
Sorensen, Flemming Brandt& Jensen, Kenneth& Vaeth, Michael& Hager, Henrik& Funder, Anette Mariane Daa& Safwat, Akmal…[et al.]. 2008. Immunohistochemical Estimates of Angiogenesis, Proliferative Activity, p53 Expression, and Multiple Drug Resistance Have No Prognostic Impact in Osteosarcoma: A Comparative Clinicopathological Investigation. Complexity،Vol. 2008, no. 2008, pp.1-14.
https://search.emarefa.net/detail/BIM-988273
Modern Language Association (MLA)
Sorensen, Flemming Brandt…[et al.]. Immunohistochemical Estimates of Angiogenesis, Proliferative Activity, p53 Expression, and Multiple Drug Resistance Have No Prognostic Impact in Osteosarcoma: A Comparative Clinicopathological Investigation. Complexity No. 2008 (2008), pp.1-14.
https://search.emarefa.net/detail/BIM-988273
American Medical Association (AMA)
Sorensen, Flemming Brandt& Jensen, Kenneth& Vaeth, Michael& Hager, Henrik& Funder, Anette Mariane Daa& Safwat, Akmal…[et al.]. Immunohistochemical Estimates of Angiogenesis, Proliferative Activity, p53 Expression, and Multiple Drug Resistance Have No Prognostic Impact in Osteosarcoma: A Comparative Clinicopathological Investigation. Complexity. 2008. Vol. 2008, no. 2008, pp.1-14.
https://search.emarefa.net/detail/BIM-988273
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-988273