Expression of stromal elements of prostatic adenocarcinoma in different gleason scores
Acta cir. bras
;
34(10): e201901005, Oct. 2019. tab, graf
Article
in English
| LILACS
| ID: biblio-1054671
ABSTRACT
Abstract Purpose:
To quantify and compare the expression of stromal elements in prostate adenocarcinoma of different Gleason scores with non-tumor area (control).Methods:
We obtained 132 specimens from samples of prostate peripheral and transition zone. We analyzed the following elements of the extracellular matrix collagen fibers, elastic system, smooth muscle fibers and blood vessels. The tumor area and non-tumor area (control) of the TMA (tissue microarray) were photographed and analyzed using the ImageJ software.Results:
The comparison between the tumor area and the non-tumor area showed significant differences between stromal prostate elements. There was an increase of collagen fibers in the tumor area, mainly in Gleason 7. Elastic system fibers showed similar result, also from the Gleason 7. Blood vessels showed a significant increase occurred in all analyzed groups. The muscle fibers exhibited a different behavior, with a decrease in relation to the tumor area.Conclusions:
There is a significant difference between the extracellular matrix in prostate cancer compared to the non-tumor area (control) especially in Gleason 7. Important modifications of the prostatic stromal elements strongly correlate with different Gleason scores and can contribute to predict the pathological staging of prostate cancer.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Prostatic Neoplasms
/
Adenocarcinoma
/
Stromal Cells
Type of study:
Observational study
/
Risk factors
Limits:
Aged
/
Aged80
/
Humans
/
Male
Language:
English
Journal:
Acta cir. bras
Journal subject:
General Surgery
/
Procedimentos Cir£rgicos Operat¢rios
Year:
2019
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
UERJ/BR
/
Universidade do Estado do Rio de Janeiro/BR
/
Urogenital Research Unit/BR
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