The expression of VDACs and Bcl2 family genes in pituitary adenomas: clinical correlations and postsurgical outcomes

Autor: AN Facundo, M Magalhães, GC Nascimento, RS Azulay, RM Santos, LA Freitas, AGPAC Nascimento, VP Rodrigues, WC Santos, AMGS Beckman, JMF Abreu, RP Silva, EL Carneiro, CP Oliveira Neto, RM Gil da Costa, R Corcoy, E Mato, MS Faria
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Endocrinology, Vol 15 (2024)
Druh dokumentu: article
ISSN: 1664-2392
DOI: 10.3389/fendo.2024.1481050
Popis: IntroductionPituitary adenomas (PAs) are benign tumors with high prevalence and, occasionally, aggressive course. The tumorigenesis of these lesions is not completely understood at the molecular level. BAK1 and BAX proteins play fundamental roles in apoptosis and seem to interact with VDAC proteins, whose expressions have been markedly altered in cancer, impacting their prognosis.Objectiveto evaluate the gene expression of VDAC1, VDAC2, BAK1 and BAX and their association with clinical and imaging characteristics in PA.MethodsClinical-epidemiological data were collected from 117 tumor samples from patients affected by PA. Invasiveness was assessed by the Knosp scale. Gene expression was examined by real-time PCR. Relative expression analysis was performed by 2^(-DDCt) method.ResultsThe sample was mainly composed of women (69/117 – 57.2%). Tumor subtypes observed were Non-Functioning (NF) (73/117 – 62.4%), Acromegaly (24/117 – 20.5%) and Cushing’s Disease (CD) (20/117 – 17.1%). Compared to normal tissue, there was a significant reduction in VDAC1 expression in the Acromegaly (p=0.029) and NF (p=0.002) groups. BAX expression was lower in all groups (p
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