Revista ABCd (São Paulo). 22 Mar, 2021

IS THERE A CLINICAL PATHOLOGICAL CORRELATION OF COLORECTAL ADENOCARCINOMA WITH THE IMMUNOHISTOCHEMICAL EXPRESSION OF OPN AND ABCB5?

Diogo Francesco CASTOLDI
Osvaldo MALAFAIA
Pedro Helo dos SANTOS-NETO
Tatiana Varella POSTIGLIONI
Cecilia VASCONCELOS
Fabiola Past BREMER
Leticia Elizabeth Augustin CZECZKO
Martin GASSER
Ana Maria WAAGA-GASSER
Carmen Australia Paredes Marcondes RIBAS
DOI: 10.1590/0102-672020200004e1569

Background:

Studies with biomarkers in TMA (tissue microarray) have been showing important results regarding its expression in colon cancer.

Aim:

Correlate the expression profile of the OPN and ABCB5 biomarkers with the epidemiological and clinicopathological characteristics of the patients, the impact on the progression of the disease and the death.

Method:

A total of 122 CRC patients who underwent surgical resection, immunomarking and their relationship with progression and death events were evaluated.

Result:

The average age was 61.9 (±13.4) years. The cases were distributed in 42 (35.9%) in the ascending/transverse colon, 31 (26.5%) in the sigmoid, 27 in the rectum (23.1%), 17 (14.5%) in the descending colon. Most patients had advanced disease (stages III and IV) in 74 cases (60.9%). There was a predominance of moderately differentiated tumors in 101 samples (82.8%); despite this, the poorly differentiated subtype proved to be an independent risk factor for death in 70%. Metastasis to the liver proved to be an independent risk factor for death in 75% (18/24), as well as patients with primary rectal tumors in 81.5% (22/27).

Conclusion:

The immunohistochemical expression of the OPN and ABCB5 markers was not associated with epidemiological and clinicopathological characteristics. Regarding the progression of disease and death, it was not possible to observe a correspondence relationship with the evaluated markers.


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