Restoration of the apoptosis pathways' proteins levels after orchiectomy in testicular tumour patients

Autor(es)

Belardin, Larissa Berloffa ^[1] ; de Andrade, Maria Beatriz Ribeiro ^[1] ; Intasqui, Paula ^[1] ; Spaine, Deborah Montagnini ^[1] ; Bertolla, Ricardo Pimenta ^{[2, 1]} ; Antoniassi, Mariana Pereira ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Div Urol, Human Reprod Sect, Dept Surg, R Embau 231, BR-04039060 Sao Paulo, SP - Brazil

^[2] Hosp Sao Paulo, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ANDROLOGIA; v. 52, n. 11 DEC 2020.
• Citações Web of Science: 0

Resumo

Seminal plasma proteins already demonstrated to reflect the testicular environment function and important regulatory mechanisms. However, it is crucial to understand which of these proteins participate in probable altered pathways in testicular germ cell tumours and after unilateral orchiectomy. In this study, we proposed to verify, by a multiplex approach, the levels of DNA damage and apoptosis pathways' proteins, in seminal plasma of men before and after unilateral orchiectomy, and also in control men. Comparing pre- and post-orchiectomy groups, just the apoptosis pathways' proteins presented different levels, in which Bad was lower and Bcl2, Akt, caspase-9, p53 and caspase-8 were higher after orchiectomy. When comparing pre- and post-orchiectomy groups with control, both presented lower levels of ChK1, Chk2, H2AX, p53 and p21, for DNA damage pathway. Regarding the apoptosis pathway, lower levels of JNK, Bcl2, Akt, caspase-9, p53 and caspase-8 and higher levels of Bad were observed before orchiectomy. The post-orchiectomy group did not differ from controls, demonstrating a probable restoration on its proteins levels. We can conclude that testicular tumours can alter both of the assessed pathways, and its removal is associated with a probable restoration of the apoptosis pathway. (AU)

• Processo FAPESP: 16/05487-3 - Regulação epididimária da fertilidade no homem
• Beneficiário: Larissa Berloffa Belardin
• Modalidade de apoio: Bolsas no Brasil - Doutorado