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Full-Text Articles in Cell and Developmental Biology

Expression Of The Αvβ3 Integrin Affects Prostate Cancer Sev Cargo And Density And Promotes Sev Pro-Tumorigenic Activity In Vivo Through A Gpi-Anchored Receptor, Ngr2, Cecilia Verrillo, Fabio Quaglia, Christopher Shields, Stephen Lin, Andrew Kossenkov, Hsin-Yao Tang, David Speicher, Nicole Naranjo, Anna Testa, William Kelly, Qin Liu, Benjamin Leiby, Luca Musante, Khalid Sossey-Alaoui, Navneet Dogra, Tzu-Yi Chen, Dario Altieri, Lucia Languino Aug 2024

Expression Of The Αvβ3 Integrin Affects Prostate Cancer Sev Cargo And Density And Promotes Sev Pro-Tumorigenic Activity In Vivo Through A Gpi-Anchored Receptor, Ngr2, Cecilia Verrillo, Fabio Quaglia, Christopher Shields, Stephen Lin, Andrew Kossenkov, Hsin-Yao Tang, David Speicher, Nicole Naranjo, Anna Testa, William Kelly, Qin Liu, Benjamin Leiby, Luca Musante, Khalid Sossey-Alaoui, Navneet Dogra, Tzu-Yi Chen, Dario Altieri, Lucia Languino

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

It is known that small extracellular vesicles (sEVs) are released from cancer cells and contribute to cancer progression via crosstalk with recipient cells. We have previously reported that sEVs expressing the αVβ3 integrin, a protein upregulated in aggressive neuroendocrine prostate cancer (NEPrCa), contribute to neuroendocrine differentiation (NED) in recipient cells. Here, we examine the impact of αVβ3 expression on sEV protein content, density and function. sEVs used in this study were isolated by iodixanol density gradients and characterized by nanoparticle tracking analysis, immunoblotting and single vesicle analysis. Our proteomic profile of sEVs containing αVβ3 shows downregulation of typical effectors involved …


Evidence Of Direct Interaction Between Cisplatin And The Caspase-Cleaved Prostate Apoptosis Response-4 Tumor Suppressor, Krishna K. Raut, Samjhana Pandey, Gyanendra Kharel, Steven M. Pascal Jan 2024

Evidence Of Direct Interaction Between Cisplatin And The Caspase-Cleaved Prostate Apoptosis Response-4 Tumor Suppressor, Krishna K. Raut, Samjhana Pandey, Gyanendra Kharel, Steven M. Pascal

Chemistry & Biochemistry Faculty Publications

Prostate apoptosis response-4 (Par-4) tumor suppressor protein has gained attention as a potential therapeutic target owing to its unique ability to selectively induce apoptosis in cancer cells, sensitize them to chemotherapy and radiotherapy, and mitigate drug resistance. It has recently been reported that Par-4 interacts synergistically with cisplatin, a widely used anticancer drug. However, the mechanistic details underlying this relationship remain elusive. In this investigation, we employed an array of biophysical techniques, including circular dichroism spectroscopy, dynamic light scattering, and UV–vis absorption spectroscopy, to characterize the interaction between the active caspase-cleaved Par-4 (cl-Par-4) fragment and cisplatin. Additionally, elemental analysis was …