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Palbociclib is a CDK4/6 inhibitor approved for the treatment of breast cancer by suppressing cell proliferation. However, monotherapy with palbociclib was discouraging in prostate cancer, calling for a mechanism-based effective therapy. In this study, we reported in prostate cancer that palbociclib is a potent sensitizer of ferroptosis, which is worked out by downregulating the expression of TRIB3, a gene highly expressed in prostate cancer. Specifically, TRIB3 knockdown augmented the response of prostate cancer cells to ferroptosis inducers, whereas, TRIB3 overexpression rescued prostate cancer cells from palbociclib-induced ferroptosis. Mechanistically, TRIB3 inhibition by palbociclib resulted in downregulation of SOX2, which subsequently led to compromised expression of SLC7A11, a cystine/glutamate antiporter that counteracts ferroptosis. Functionally, a combined treatment of palbociclib with ferroptosis inducer significantly suppressed prostate cancer growth in a xenograft tumor model. Together, these results uncover an essential role of TRIB3/SOX2/SLC7A11 axis in palbociclib-induced ferroptosis, suggesting palbociclib a promising targeted therapy in combine with ferroptosis induction for the treatment of prostate cancer.
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http://dx.doi.org/10.1038/s41420-024-02152-7 | DOI Listing |
J Egypt Natl Canc Inst
September 2025
National Cancer Institute of Cairo University, Giza, Egypt.
Objectives: To balance the extended functional urinary voiding and morbidity outcomes amid Ileal W and Y-shaped contrasted to spherical ileocoecal (IC) orthotopic bladders subsequent prostate-sparing radical cystectomy (PRC) versus standard radical cystoprostatectomy (RC).
Material And Methods: Two hundred eight male bladder cancer patients were grouped into 98 RC followed by 43-W, 31-Y, and 23-IC in comparison to 110 PRC followed by 35-W, 37-Y, and 38-IC. The functional voiding outcomes were determined by detailed patients' interview and urodynamic studies (UDS).
Mol Oncol
September 2025
Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA.
Prostate cancer (PCa) is the second most lethal cancer in men in the US. African American (AA) men have twice the incidence and death rate of European American (EA) men. Advanced PCa shows increased expression and activity of the DNA damage/repair pathway enzyme, poly (ADP-ribose) polymerase 1 (PARP1).
View Article and Find Full Text PDFUrol Oncol
September 2025
Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, Québec, Canada.
Introduction: The effect of inflammatory bowel disease (IBD) on adverse in-hospital outcomes after radical prostatectomy (RP) for nonmetastatic prostate cancer (PCa) is not well known.
Materials And Methods: Descriptive analyses, propensity score matching and multivariable logistic regression models were used within the National Inpatient Sample (2000-2019) RP patients, after stratification according to Crohn's disease (CD) vs. ulcerative colitis (UC) vs.
Eur Urol
September 2025
Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China; Liaoning Provincial Key Laboratory of Gynecological Oncology, Shenyang, China. Electronic address:
Eur Urol Oncol
September 2025
Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA. Electronic address:
Background And Objective: The apex-to-base transperineal (TP) prostate biopsy needle trajectory may better sample the anterior prostate than the transrectal approach. There is evidence that African American men are more likely to harbor anterior tumors, suggesting that TP biopsy would result in better detection in these men. We performed a secondary retrospective analysis of prospective randomized trial data to determine whether African American race is associated with anterior tumor location and better detection with TP biopsy.
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