Osteopontin, WNT3A, and ABCB5 Biomarkers Expression in Osteosarcoma Patients
Glauco José Pauka Mello, Cleima Coltri Bittelbrunn, Glauco Vinicius Bittelbrunn Pauka Mello, Fernanda Pinto Garcia, Ana Valéria Brunetti Rigolino, Pedro Reggiani Anzuatégui

TL;DR
This study examined the expression of three proteins in osteosarcoma patients but found no significant correlation with disease progression or survival.
Contribution
The study evaluates the potential of OPN, ABCB5, and WNT3A as biomarkers in osteosarcoma using immunohistochemistry.
Findings
Osteopontin (OPN) was negative in all patient samples.
WNT3A expression was observed in patients who died early.
None of the biomarkers showed statistical significance in predicting disease progression or survival.
Abstract
Objective This study aimed to correlate the expression, by immunohistochemistry, of the proteins OPN, ABCB5, and WNT3A from anatomopathological materials obtained from paraffin blocks, slides, or both, from patients with osteosarcoma (OS), analyzing epidemiological characteristics, as well as their presence and influence on the evolution and progression of the disease. Methods After the initial case selection, we searched for the respective paraffin blocks and took only those with sufficient tumor mass to allow additional sections with no complete loss of biological material. The sarcoma area identification in representative paraffin blocks used multisample blocks (tissue microarray [TMA]) created on a BenchMark ULTRA (Roche Diagnostics Corporation, Indianapolis, IN, USA) instrument. Then, we analyzed the association between the expression of ABCB5, WNT3A, and osteopontin (OPN)…
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Taxonomy
TopicsSarcoma Diagnosis and Treatment · Oral and Maxillofacial Pathology · Renal and related cancers
