2025
DIA-MS identified transmembrane glycoprotein GPNMB as a candidate predictive biomarker and potentially a therapeutic target in metastatic renal cell carcinoma
ŠIMONÍK, Jan; Pavla BOUCHALOVÁ; Petr LAPČÍK; David POTĚŠIL; Ján PODHOREC et al.Základní údaje
Originální název
DIA-MS identified transmembrane glycoprotein GPNMB as a candidate predictive biomarker and potentially a therapeutic target in metastatic renal cell carcinoma
Autoři
ŠIMONÍK, Jan; Pavla BOUCHALOVÁ; Petr LAPČÍK; David POTĚŠIL; Ján PODHOREC; Lucia JANÁČOVÁ; Alice HLOBILKOVÁ; Kateřina JURÁSKOVÁ ORCID; Alexandr POPRACH; Milan HORA; Ondřej FIALA a Pavel BOUCHAL
Vydání
In book of abstracts of Conference of the European Proteomics Association 2025, Saint-Malo June 16-20, 2025, 2025
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ne
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
metastatic renal cell carcinoma, tyrosine kinase inhibitor, sunitinib, pazopanib, TKI resistance, DIA proteomics, GPNMB, migration, invasiveness
Příznaky
Mezinárodní význam
Změněno: 3. 2. 2026 14:12, doc. Mgr. Pavel Bouchal, Ph.D.
Anotace
V originále
Background: Metastatic renal cell carcinoma (mRCC) has a poor prognosis in general, and the patients are commonly treated with receptor tyrosine kinase inhibitors (TKIs). However, about half of mRCC patients do not benefit from TKI treatment. Methods: To identify non-responders, we conducted a retrospective study of 53 mRCC tumors treated with TKI using data-independent acquisition mass spectrometry. To explore the identified protein as a potential therapeutic target, we knocked out its expression with CRISPR/Cas9 and studied migration and invasion in the 786-0 RCC cell line. Results: A total of 6183 protein groups (FDR 0.01) were quantified in the proteomics dataset. Differential protein abundance analysis identified 12 proteins associated with poor treatment response, of which 5 were confirmed in a validation cohort (n=22). Transmembrane glycoprotein B (GPNMB) had the highest predictive value for treatment response and was associated with progression-free survival. A trend of increased GPNMB levels was observed using immunohistochemistry (n = 40). Comparisons between parental and GPNMB-/- cells indicated that GPNMB enhances the migration and invasion capacity of 786-0 cells. Conclusions: GPNMB is a potential predictive biomarker for poor treatment response to TKIs and a potential therapeutic target for mRCC, as its blockade could overcome TKI resistance.
Návaznosti
| LM2023042, projekt VaV |
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| LX22NPO5102, projekt VaV |
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| MUNI/A/1684/2024, interní kód MU |
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| NW25-03-00122, projekt VaV |
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