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Prognostic Value of Plasma hPG (Circulating Progastrin) in Metastatic Renal Cell Carcinoma. | LitMetric

AI Article Synopsis

Article Abstract

Precise management of kidney cancer requires the identification of prognostic factors. hPG (circulating progastrin) is a tumor promoting peptide present in the blood of patients with various cancers, including renal cell carcinoma (RCC). In this study, we evaluated the prognostic value of plasma hPG in 143 prospectively collected patients with metastatic RCC (mRCC). The prognostic impact of hPG levels on overall survival (OS) in mRCC patients after controlling for hPG levels in non-cancer age matched controls was determined and compared to the International Metastatic Database Consortium (IMDC) risk model (good, intermediate, poor). ROC curves were used to evaluate the diagnostic accuracy of hPG using the area under the curve (AUC). Our results showed that plasma hPG was detected in 94% of mRCC patients. hPG levels displayed high predictive accuracy with an AUC of 0.93 and 0.84 when compared to 18-25 year old controls and 50-80 year old controls, respectively. mRCC patients with high hPG levels (>4.5 pM) had significantly lower OS compared to patients with low hPG levels (<4.5 pM) (12 versus 31.2 months, respectively; = 0.0031). Adding hPG levels (score of 1 for patients having hPG levels > 4.5 pM) to the six variables of the IMDC risk model showed a greater and significant difference in OS between the newly defined good-, intermediate- and poor-risk groups ( = 0.0003 compared to = 0.0076). Finally, when patients with IMDC intermediate-risk group were further divided into two groups based on hPG levels within these subgroups, increased OS were observed in patients with low hPG levels (<4.5 pM). In conclusion, our data suggest that hPG could be used for prognosticating survival in mRCC alone or integrated to the IMDC score (by adding a variable to the IMDC score or by substratifying the IMDC risk groups), be a prognostic biomarker in mRCC patients.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7864155PMC
http://dx.doi.org/10.3390/cancers13030375DOI Listing

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