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Plasma Exosomal AKR1C3 mRNA Expression Is a Predictive and Prognostic Biomarker in Patients with Metastatic Castration-Resistant Prostate Cancer
| Content Provider | Oxford Academic |
|---|---|
| Author | Zhu, Sha Ni, Yuchao Wang, Zilin Zhang, Xingming Zhang, Yaowen Zhao, Fengnian Dai, Jindong Wang, Zhipeng Zhu, Xudong Chen, Junru Zhao, Jinge Zeng, Yuhao Chen, Ni Zeng, Peng Shen, Pengfei Sun, Guangxi Zeng, Hao |
| Copyright Year | 2022 |
| Abstract | Purpose : Aldo-keto reductase family 1 member C3 (AKR1C3) is important in prostate cancer progression, being a potential biomarker in metastatic castration-resistant prostate cancer (mCRPC). Previous explorations of AKR1C3 are mainly based on tissue samples. This study investigates using plasma-based liquid biopsy to validate the prognostic and predictive value of AKR1C3 in patients with mCRPC .Materials and MethodsWe prospectively recruited 62 patients with mCRPC. All patients received repeated prostate biopsies at the time of mCRPC diagnosis, and immunohistochemistry (IHC) staining was used to detect protein expression of AKR1C3 in the tissues. We took their blood simultaneously and performed digital droplet polymerase chain reaction (ddPCR) to measure expression levels of AKR1C3 in the exosomes. The detected plasma and tissue AKR1C3 expression levels were analyzed for patients' overall survival (OS) and progression-free survival under first-line abiraterone use (ABI-PFS).ResultsAll other baseline characteristics were balanced between the 2 groups. 15/62 (24.2%) and 25/62 (40.3%) patients showed AKR1C3-EXO positive (≥20 copies/20 μL) and AKR1C3-IHC positive, respectively. Positive AKR1C3-EXO expression was associated with decreased patients' survival [ABI-PFS: 3.9 vs 10.1 months, P < .001; OS: 16.2 vs 32.5 months, P < .001]. AKR1C3-IHC positivity was also correlated with ABI-PFS and OS (P = .010, P = .016). In patients with worse baseline blood tests (including higher alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) level and lower hemoglobin (HB) level), and lower ISUP/WHO group (<4), their OS was significantly worse when showing AKR1C3-EXO positive.ConclusionAKR1C3-EXO is associated with patient prognosis regarding OS and ABI-PFS and can be used as a biomarker in mCRPC. |
| Related Links | https://academic.oup.com/oncolo/article-pdf/27/11/e870/46832272/oyac177.pdf |
| Ending Page | e877 |
| Starting Page | e870 |
| File Format | |
| ISSN | 10837159 |
| e-ISSN | 1549490X |
| DOI | 10.1093/oncolo/oyac177 |
| Journal | The Oncologist |
| Issue Number | 11 |
| Volume Number | 27 |
| Language | English |
| Publisher | Oxford Academic |
| Publisher Date | 2022-11-03 |
| Access Restriction | Open |
| Subject Keyword | Medicine and Health Prostate Cancer Metastatic Castration-resistant Prostate Cancer Akr1c3 Exosome Small Extracellular Vesicles Prognosis Abiraterone |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
