Columbia University Bio Bytes

Even if mosquitoes make your skin crawl—or you think of them as nothing more than the flying, biting pests we all can’t stand—you'll be surprised by how fascinating they really are. In this episode of Bio Bytes, Dr. Laura Duvall, Assistant Professor of Biological Sciences at Columbia University, joins Celine to explore the surprising science behind mosquito behavior.Together, they dive into how blood-feeding and mating trigger long-lasting changes in female mosquitoes, and how neuropeptide signaling shapes their biting and reproductive cycles. You’ll learn how internal physiological states guide behavior in ways that echo patterns in other animals (even us), and how this knowledge could lead to next-generation tools for vector control. The episode also tackles the ethical questions that arise in translating lab findings into public health interventions. Join us to rethink what you know about mosquitoes and learn more about neuroscience, global health, and why mosquitoes really bite.Hosted by Celine Cotran.

Join us for a fascinating conversation with Dr. Livnat Jerby, an Assistant Professor of Genetics at Stanford University, Chan Zuckerberg Biohub Investigator, and Paul Allen Distinguished Investigator. In this episode, Dr. Jerby shares how her lab is decoding and engineering immune circuits to create next-generation cell therapies, drawing on high-throughput technologies and computational modeling. We explore how multicellular programs shape disease and immunity, revisit her work on immune evasion during her time at the Broad Institute, and discuss the future of synthetic immune systems and interdisciplinary science. Hosted by Emma Chen.

Michele Pagano, Chairman of the Department of Biochemistry and Molecular Pharmacology at NYU School of Medicine, takes us through his groundbreaking research on the Ubiquitin-Proteasome System and Cullin-RING Ligases. As a leading Investigator at the Howard Hughes Medical Institute, Professor Pagano shares insights into targeted protein degradation and its potential for treating “undruggable” cancer proteins. Reflecting on the evolving dynamics within academia, he discusses the challenges and intricacies of managing a research lab and offers his perspectives on the current publishing and peer review systems in scientific journals. Don’t miss this engaging conversation on the challenges and opportunities shaping the future of biomedical science. Link to the paper mentioned in the show: https://breast-cancer-research.biomedcentral.com/articles/10.1186/bcr2742

Join us for an inspiring episode as Professor James Manley, the Julian Clarence Levi Professor of Life Sciences at Columbia University, takes us on a journey into the intricate world of gene expression regulation in mammalian cells. Professor Manley discusses the pivotal roles of RNA-binding proteins and alternative mRNA splicing, shedding light on how disrupted gene regulation can contribute to cancer and neurodegenerative diseases. Discover the real-world applications of mRNA technology and gain valuable career insights from Professor Manley on Columbia University Bio Bytes.

In which Martin Chalfie, a professor of Biological Sciences at Columbia University and Nobel laureate recognized for his contribution to the development of green fluorescent protein (GFP), and Sophia discuss the applications of GFP and his current research on the development and function of touch receptor neurons (TRNs) using the nematode Caenorhabditis elegans. Dr. Chalfie highlights the versatility of GFP as a tool for studying biological processes, including the development and function of neurons. He explains the regulation of TRNs by transcription factors and transduction channels and how studying their development and function can provide insights into sensory perception.

In which Ian Maze, professor of Neuroscience and Pharmacological science in the Icahn School of Medicine at Mount Sinai and an investigator of the Howard Hughes Medical Institute, and Vaibhav discuss the intersection of chromatin biochemistry and neuroscience. Ian describes the diverse mechanistic functions of neurotransmitters, especially as they pertain to modifying histones and other proteins. He also describes Mount Sinai's Center for Neural Epigenome Engineering, of which he is the inaugural director, and provides advice for young scientists. 

In which Darcy Kelley, Harold Weintraub Professor of Biological Sciences, and James discuss Xenopus as a model organism for understanding the biology of behavior and evolution of neural circuits. Professor Kelley describes several ways in which contemporary methods like single-cell RNA sequencing and optogenetics are helping us understand the true connection between neurobiology and behavior. Additionally, she provides insight on how young scientists can effectively develop themselves after initial exposure to research. 

In which Harris Wang, associate professor of Systems Biology at the Columbia University Irving Medical Center, and Vaibhav discuss the application of systems and synthetic biology to the study of microbial communities. He describes the motivation and application of many of his group's seminal contributions (MAGE, CAGE, MaPS-seq), the various use cases of synthetically minimal genomes and engineered bacteria, and closes with some advice for young scientists and trainees. 

In which Aaron speaks with Zach Abbott, PhD, about his company ZBiotics. ZBiotics is a biotechnology start-up that is focused on engineering microorganisms for consumer benefit. Aaron and Zach talk about the company’s current product, a genetically engineered probiotic designed to breakdown acetaldehyde, a toxic byproduct of alcohol. Additionally, Zach offers insight on his transition from completing a PhD to the biotech start-up space.

In which Vaibhav speaks with Dr. Alison Taylor, an Assistant Professor of Pathology and Cell Biology at the Columbia University Irving Medical Center, about her research on the role of aneuploidy (abnormal numbers of chromosomes) in cancer. Among other things, they discuss the basic mechanisms of aneuploidy, the ways in which it can favor cancer development, and contemporary approaches in chemically targeting aneuploid cells. Alison explains her group's models for studying aneuploidy and their new computational genomics efforts as well. She concludes by discussing ongoing projects in her lab and some pressing questions about genome integrity in cancer initiation and progression. 

In which Josh speaks with Stavros Thomopoulos, PhD about biomechanical engineering at the tendon-bone interface. Dr. Thomopoulos is the director of the Caroll Laboratories for Orthopedic Surgery and the Vice Chair for Basic Science Research in Orthopedic Surgery at the Columbia University Irving Medical Center. Among other things, they discuss the challenges of attaching a tendon to a bone and stem cell-based regenerative medicine to improve healing in orthopedic injuries, such as those to the rotator cuff.

In which Vaibhav and Dr. Aaron Viny (a clinician scientist and assistant professor at Columbia) discuss the role of Cohesin complexes in 3D genome organization and how spatiotemporal irregularities in higher order genetic structures lead to blood cancers. They talk about the importance of linage commitment and how a disorganized genome can prevent it. Aaron concludes with a discussion of his experience as a physician-investigator and  meeting (now president-elect) Joe Biden.