HYBRID EVENT: You can participate in person at Rome, Italy or Virtually from your home or work.
Speaker at Pharmaceutical Conference - Deisy Yurley Rodriguez Sarmiento
Universidad Autonoma de Bucaramanga, Colombia
Title : Kisspeptin-10 signaling: Unveiling pathways in cervical cancer

Abstract:

This presentation will show into the intricate cellular signaling mechanisms mediated by kisspeptin-10 (KP10) in cervical cancer cells, focusing specifically on its interaction with the Kiss1R receptor. The role of KP10 in modulating various G protein-coupled receptor (GPCR) pathways, including Gq, Gi/o, and Gs, alongside its influence on β-arrestin recruitment, presents a compelling narrative on its potential as a therapeutic target in cervical cancer treatment.

Initially, the study explores the activation profiles of KP10 on the Kiss1R receptor within cervical cancer cells, emphasizing the differential activation of the Gq protein family. Through quantitative analyses, we demonstrate the specific potency and efficacy of KP10 highlighting its superior ability to activate the Gq pathway. This finding underscores the relevance of KP10 in influencing cellular processes such as proliferation and apoptosis, which are crucial in the context of cancer biology.

Moreover, the research investigates the unique interaction of KP10 with the Gi/o family, particularly noting the exceptional activation of the Gz protein pathway. The distinct activation patterns observed for KP10 in engaging Gz, contrasted with their lack of effect on other Gi/o pathways, accentuate the specificity of KP10 signaling and its potential implications for therapeutic intervention. The EC50 values obtained from these interactions provide a quantitative measure of KP10 potency, offering insights into its mechanistic role in cellular signaling. Additionally, the presentation will cover the recruitment of β-arrestins in response to KP10 and its analogs. β-arrestins play a critical role in mediating receptor desensitization and internalization, as well as activating non-GPCR signaling pathways. Our findings reveal a nuanced mechanism of β-arrestin recruitment by KP10, suggesting alternative signaling outcomes that may influence cancer cell behavior and response to treatment.

The culmination of this research presents a comprehensive overview of KP10 signaling dynamics through the Kiss1R receptor in cervical cancer cells. By elucidating the molecular mechanisms underpinning KP10 interaction with GPCR pathways and β-arrestin recruitment, we aim to contribute valuable knowledge to the field of cancer biology. Furthermore, the implications of these findings for the development of targeted therapies in cervical cancer underscore the potential of KP10 as a novel therapeutic agent.

Audience Take Away Notes:

From this presentation on the cellular signaling of kisspeptin-10 (KP10) in cervical cancer cells, the audience can expect to gain valuable insights and practical knowledge applicable to a broad range of scientific and clinical settings. Here are  key thoughs and their potential applications:

  • Understanding KP10 Role in GPCR Pathway Modulation: Attendees will learn about the specific interactions between KP10 and the Kiss1R receptor, particularly how KP10 activates various G protein-coupled receptor (GPCR) pathways. This knowledge is crucial for researchers and clinicians focusing on targeted cancer therapies, providing a foundation for developing treatments that modulate these pathways
  • Insights into β-Arrestin Recruitment by KP10: The presentation will elucidate the mechanism by which KP10 recruits β-arrestins, offering a deeper understanding of its signaling beyond traditional GPCR activation. This could inspire new research directions in drug design, where β-arrestin pathways are targeted alongside or instead of GPCR pathways, potentially leading to more effective and nuanced therapies

Practical Applications and Broader Implications:

  • Research Expansion: Faculty and researchers could leverage these findings to expand their investigations into GPCR signaling in cancer and other diseases, fostering interdisciplinary studies that bridge molecular biology, pharmacology, and clinical research
  • Educational Value: This research can enrich academic curricula, offering real-world examples of how molecular signaling pathways are elucidated and targeted for therapeutic intervention, enhancing the educational experience for students in biomedical sciences
  • Design and Development: For drug developers, the detailed analysis of KP10 interactions with its receptor and downstream signaling pathways provides critical insights that could streamline the design and development of new therapeutics, making the process more efficient and potentially more successful

Biography:

Dr. Deisy Yurley Rodriguez Sarmiento pursued her Chemistry degree and later completed her PhD in Biochemistry at the University of São Paulo, Brazil, where she worked in the laboratory of Dr. Claudio Costa-Neto. She is currently a faculty member in the Medicine Program at the Autonomous University of Bucaramanga, Colombia. Her research focuses on developing peptides as tools for the structural and functional study of GPCRs, with particular emphasis on bradykinin, angiotensin, and kisspeptin receptors. Dr. Rodriguez Sarmiento has also completed internships at the laboratory of Dr. Michel Bouvier at IRIC in Montreal, Canada, further enriching her research experience. Her contributions are aimed at advancing our understanding of GPCR mechanisms, with a significant focus on therapeutic applications.

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