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Home NEWS Science News Cancer

University of Oklahoma Health Doctoral Student Awarded Prestigious National Cancer Institute Grant

Bioengineer by Bioengineer
September 9, 2025
in Cancer
Reading Time: 4 mins read
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At the forefront of cancer research, University of Oklahoma Health Sciences Center Ph.D. candidate Alex Arreola has made a remarkable stride by securing one of only fifteen National Cancer Institute (NCI) Predoctoral to Postdoctoral Fellow Transition grants nationwide this year. This distinguished award recognizes promising scientists who are pioneering novel research paths in oncology. Impacting both his doctoral and forthcoming postdoctoral work, this grant provides an essential platform for Arreola to decode the intricate biological processes underlying pancreatic cancer-associated cachexia, a debilitating syndrome marked by severe body weight and muscle loss.

Cachexia presents a formidable clinical challenge, particularly prevalent in pancreatic cancer patients, where it manifests as a multifactorial wasting condition characterized by profound loss of skeletal muscle and adipose tissue. What distinguishes cachexia from simple starvation is its complexity; it is driven by both diminished appetite and metabolic disturbances orchestrated by tumor-host interactions. Understanding this syndrome’s mechanisms is critical, considering that approximately 80% of pancreatic cancer patients succumb to cachexia, which drastically reduces their quality of life and complicates therapeutic interventions.

Arreola’s doctoral research focuses on unraveling a specific molecular communication pathway through which the pancreatic tumor induces cachexia early in disease progression. His investigations center around a signaling molecule secreted by the tumor that targets a receptor localized exclusively in a discrete region of the brain stem. Intriguingly, this receptor acts as a master regulator, orchestrating the onset of muscle and fat wasting without direct involvement from the peripheral tissues themselves. This neurobiological axis effectively rewires systemic energy metabolism, triggering catabolic pathways that lead to tissue degradation.

This novel insight reveals how tumors can manipulate central nervous system circuits to subvert normal homeostatic controls. Typically, this brain stem region modulates the body’s fight-or-flight response, mobilizing energy reserves during acute stress by breaking down muscle protein and fat stores. However, the tumor hijacks this primitive survival mechanism, inducing chronic and inappropriate catabolism that results in cachexia. This distortion of physiological signaling epitomizes the insidious ways cancer disrupts systemic biology beyond mere tumor growth.

Building upon this mechanistic groundwork, Arreola’s planned postdoctoral studies will extend his lens to the liver, another key organ in systemic energy regulation and frequently a site of pancreatic cancer metastasis. The liver plays a central role in maintaining energy homeostasis through carbohydrate, lipid, and protein metabolism. By elucidating how the tumor remotely influences hepatic function, Arreola aims to parse additional pathways by which pancreatic cancer orchestrates cachexia, potentially uncovering novel therapeutic targets to preserve muscle and fat mass.

This research is poised to reshape our understanding of tumor-host communication in cachexia, highlighting the importance of central nervous system involvement and distant organ crosstalk. By focusing on the tumor-derived molecular signals and their systemic impact, Arreola’s work bridges oncology, neurobiology, and metabolism—fields that traditionally operated in isolation. The multidisciplinary nature of his approach exemplifies contemporary cancer research’s shift toward integrated systems biology.

Professor Min Li, Arreola’s mentor and associate director for global oncology at the OU Health Stephenson Cancer Center, praises his protégé’s dedication and scientific rigor. She emphasizes that this grant award both recognizes his exceptional promise and equips him to advance the field significantly. Such endorsements underscore the importance of investing in early-career researchers who innovate at the intersection of fundamental biology and clinical need.

Beyond scientific motivations, Arreola’s pursuit of cancer research is deeply personal. Having witnessed the devastating impact of pancreatic cancer on his father, he is driven by a profound desire to contribute meaningfully to this challenging field. This personal connection fuels his commitment to scientific discovery with the hope that his findings might one day translate into interventions that alleviate suffering for patients facing similar battles.

Arreola also values the collaborative ethos fostered within the academic health system, where laboratory discoveries align closely with clinical care. This unique environment enables translational research pipelines, wherein benchside hypotheses can rapidly inform bedside treatments. While he is not directly involved in patient care, the potential for his laboratory findings to inform novel drug development is a source of immense professional fulfillment.

Cachexia remains a critical unmet medical need, with current treatment options largely palliative and ineffective at reversing muscle and fat loss. By elucidating the neural and hepatic pathways through which tumors propagate cachexia, Arreola’s research could inform the development of targeted therapies that disrupt these pathways, ultimately improving patient outcomes and survival rates.

The NCI Predoctoral to Postdoctoral Fellow Transition (F99/K00) grant supporting this work is specially designed to facilitate the transition of outstanding Ph.D. candidates into independent cancer researchers. It provides a structured framework enabling researchers like Arreola to pursue ambitious projects addressing fundamental cancer biology questions while preparing for future leadership roles in the scientific community.

The University of Oklahoma Health Sciences Center, with its diverse health profession colleges and a robust research infrastructure, offers fertile ground for such transformative research endeavors. By nurturing talent through competitive funding and mentorship, the institution strengthens its role as a prominent cancer research hub within the United States.

Arreola’s groundbreaking exploration into the molecular crosstalk between pancreatic tumors, the brain stem, and the liver not only illuminates the complex etiology of cachexia but also signifies an important stride toward personalized, mechanism-based therapies for pancreatic cancer patients. As he progresses from his doctoral studies into postdoctoral research, the scientific community awaits the potential breakthroughs his work promises to deliver.

Subject of Research: Mechanisms of cachexia in pancreatic cancer, focusing on tumor-brain stem-liver communication pathways.

Article Title: University of Oklahoma Ph.D. Candidate Alex Arreola Receives National Cancer Institute Grant to Investigate Cachexia Mechanisms in Pancreatic Cancer

Web References:
http://www.ouhsc.edu

Image Credits: University of Oklahoma

Keywords: Cachexia, Pancreatic cancer, Doctoral students, Cancer metabolism, Neurobiology, Tumor-host interaction

Tags: cachexia in cancer patientscancer research funding opportunitiescancer-related weight lossinnovative oncology researchmetabolic disturbances in cancermolecular communication pathways in cancerNational Cancer Institute Predoctoral grantoncology doctoral studiespancreatic cancer researchPh.D. candidate achievementstumor-host interactions in cachexiaUniversity of Oklahoma Health Sciences Center

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