Reduction of salivary gland uptake in endoradiotherapy of prostate cancer: first preclinical data of a cleavable derivative of PSMA-617

Conclusions: The chemical modification of PSMA-617 resulted in negligible impact and the excellent cell binding properties, tumor uptake and the pharmacokinetic characteristics of PSMA-617 could be preserved. As the cleavability of the novel compound was shown in the presented in vitro proof-of-concept, further studies need to investigate the related in vivo properties. The first preclinical data on a cleavable derivative of PSMA-617 emphasize the potential of this strategy to minimize dose-limiting side effects for an improved therapy of prostate cancer.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Preclinical Probes for Oncology Posters Source Type: research

Related Links:

This study aims to investigate the apoptotic and anti-angiogenic effect of Zoledronic acid on hormone-refractory prostate cancer cell lines. XTT cell proliferation assay used to assess cytotoxicity. Caspase 3/7 activity and DNA fragmentation were measured to verify apoptosis. Angiogenic cytokine profiles investigated using the human angiogenesis antibody array I. Administration of Zoledronic acid on PC-3 and DU-145 prostate cancer cell lines resulted in increased cytotoxicity and apoptosis with a time- and dose-related manner. Also, the administration of Zoledronic acid significantly reduced several angiogenic cytokine pro...
Source: Molecular Biology Reports - Category: Molecular Biology Authors: Tags: Mol Biol Rep Source Type: research
Authors: Papasotiriou I, Apostolou P, Ntanovasilis DA, Parsonidis P, Osmonov D, Jünemann KP Abstract Hormone-refractory prostate carcinoma has a different cell surface protein profile than hormone-sensitive prostate carcinoma, which provides migration ability and interactions with organs/tissues. Detection and association of these proteins with lymph node metastasis via lymphadenectomy might be beneficial for patients. Gene expression analysis in hormone-refractory and hormone-sensitive commercial cancer cell lines was performed and, after co-cultivation with osteoblasts or endothelial cells, knockdown experim...
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Publication date: October 2020Source: Biomedicine &Pharmacotherapy, Volume 130Author(s): Henrique Herbst Rosa, Pamela Carvalho, Caroline Flach Ortmann, Naira Fernanda Zanchett Schneider, Flávio Henrique Reginatto, Cláudia Maria Oliveira Simões, Izabella Thaís Silva
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
CONCLUSIONS: The results showed the in vitro cytotoxic potential of the triterpene-enriched fraction obtained from the leaves of C. pachystachya on human prostate cancer PC3 cell line. PMID: 32768881 [PubMed - as supplied by publisher]
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - Category: Drugs & Pharmacology Authors: Tags: Biomed Pharmacother Source Type: research
Brachytherapy boost improves biochemical recurrence rates in men with high-risk prostate cancer (HRPC). Few data are available on whether one isotope is superior to another. We compared the oncologic and morbidity outcomes of I-125 and Pd-103 in men with HRPC receiving brachytherapy.
Source: Brachytherapy - Category: Cancer & Oncology Authors: Source Type: research
Abstract We aimed to estimate the risk of secondary cancer after radiotherapy (RT) in high-risk prostate cancer (HRPC) patients with pelvic irradiation. Computed tomography data of five biopsy-proven HRPC patients were selected for this study. Two different planning target volumes (PTV1 and PTV2 ) were contoured for each patient. The PTV1 included the prostate, seminal vesicles, and pelvic lymphatics, while the PTV2 included only the prostate and seminal vesicles. The prescribed dose was 54 Gy for the PTV1 with a sequential boost (24 Gy for the PTV2 ). Intensity-modulated RT (IMRT) and volumetric modulat...
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
Conclusion: Our study demonstrated that the TGF-β-acetylated KLF5-Bcl-2 signaling axis mediates DTX resistance in prostate cancer and blockade of this pathway could provide clinical insights into chemoresistance of prostate cancer.
Source: Theranostics - Category: Molecular Biology Authors: Tags: Research Paper Source Type: research
Conclusion: The results of this study may provide helpful evidence of DP for the treatment of patients with HRPC. Systematic review registration: INPLASY202040112.
Source: Medicine - Category: Internal Medicine Tags: Research Article: Study Protocol Systematic Review Source Type: research
In this report, we present a typical case of “double-negative” end-stage prostate cancer that morphologically resembled basal cell carcinoma of prostate, basaloid large nest type.
Source: Pathology Case Reviews - Category: Pathology Tags: Case Reviews Source Type: research
Gautam KumarIndian Journal of Urology 2020 36(2):144-145
Source: Indian Journal of Urology - Category: Urology & Nephrology Authors: Source Type: research
More News: Cancer | Cancer & Oncology | Chemistry | Hormone Refractory Prostate Cancer | Hormones | Nuclear Medicine | Prostate Cancer | Study