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    • A premier environment where creative scientists conduct fundamental research for the betterment of human health – we are the IRP
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2022–2023

WALS 2022–2023 season poster

Obligate Symbionts and Other Intriguing Members of Human Microbiomes

Jill Banfield, Ph.D.
University of California, Berkeley
Wednesday, September 7, 2022 at 2 p.m. ET
Rolla E. Dyer Lecture

From the speaker: "The application of cultivation independent genomics-based methods to human and animal microbiomes has uncovered bacteria from lineages not represented in culture collections and provided clues as to their metabolic capacities. There is now sufficient genomic sampling to begin to ask questions about how often bacteria from these groups migrate from the natural environment into human microbiomes, from where, what is involved in habitat transition and when metabolic changes occurred.

Harnessing African Genomic Variation to Improve Health Globally

Ambroise Wonkam, M.D., Ph.D.
Hopkins Medicine
Wednesday, September 14, 2022 at 2 p.m. ET

African genomes harbor millions of uncaptured variants accumulated over 300,000 years of modern humans' evolutionary history, with successive waves of admixture, migration, and natural selection combining with extensive ecological diversity to create a broad and exceptional genomic complexity. Therefore to embrace the prospects of accurately diagnosing thousands of monogenic conditions, predicting disease risks for complex traits or diseases, tailoring treatment to individuals' pharmacogenetic profiles, and potentially curing some diseases, research into African genomic variation is a

Molecular Origami: The Delicate Art of Protein Folding and Misfolding and Its Relevance to Health and Disease

Judith Frydman, Ph.D.
Stanford University
Wednesday, September 21, 2022 at 2 p.m. ET

The ability to maintain a functional proteome by preserving protein homeostasis or proteostasis is essential for cell viability. Yet, this ability declines during the process of aging. Such a collapse in proteostasis results in the accumulation of misfolded and aggregated proteins that are a hallmark of aging and neurodegenerative diseases such as Huntington’s and Alzheimers Disease. Our work aims to define fundamental principles of protein folding and quality control and to apply this knowledge to proteostasis dysfunction in disease. 

The Secret Life of Introns

Tracy Johnson, Ph.D.
University of California, Los Angeles
Wednesday, September 28, 2022 at 2 p.m. ET
NIH Director’s Lecture

Regulation of gene expression is crucial for every function carried out by the cell, from cell growth and proliferation to the ability of the cell to respond to its ever-changing environment. Hence, understanding cellular function and dysfunction is dependent upon deciphering these gene regulatory mechanisms. This is particularly challenging in the case of eukaryotic genes, which are often interrupted by long stretches of noncoding sequences (introns). These are removed from the newly synthesized RNA, and the remaining sequences (exons) are ligated together to form a mature messenger RNA.

Gaining New Insights into 'Fundamental Immunology' Using Imaging and Computation

Ron Germain, M.D., Ph.D.
NIAID, NIH
Wednesday, October 19, 2022 at 2 p.m. ET
William E. Paul Lecture

Dr. Germain will describe the critical role of imaging in developing a deep understanding of how the innate and adaptive immune systems operate in health and disease. He will provide examples of how dynamic intravital imaging has revealed basic information about cell migration and interactions within lymphoid and non-lymphoid tissues and how this method discovered a previously unknown role of tissue resident macrophages in preventing persistent tissue damage by neutrophil ‘swarms’.

Bitten: Why Are Some People More Attractive to Mosquitoes Than Others?

Leslie B. Vosshall, Ph.D.
HHMI
Wednesday, October 26, 2022 at 2 p.m. ET
NIH Director’s Lecture

Leslie Vosshall wants to understand how environmental cues and internal physiology work together to guide complex animal behaviors. Vosshall and her team study this problem in mosquitoes and humans, applying approaches in neurobiology, behavior, genetics, and genomics. Vosshall’s team uses CRISPR/Cas9 genome-editing tools to advance understanding of how the mosquitoes that spread dengue and yellow fever integrate sensory cues to hunt their human hosts.

Anticytokine Autoantibodies: Causes, Concomitants and Complications of Infectious Diseases

Steven Holland, M.D.
NIH
Wednesday, November 2, 2022 at 2 p.m. ET
Astute Clinician Lecture

Steve Holland's research entails immune defects of phagocytes: GATA2 deficiency (MonoMAC), nontuberculous mycobacterial infections, chronic granulomatous disease, hyper IgE (Job’s) syndrome, leukocyte adhesion deficiency; cytokines and their receptors in the pathogenesis and therapy of infections; susceptibility to disseminated mycobacterial infections, such as GATA2, autoantibodies to interferon gamma and defects in the interferon gamma/IL-12 pathway; mechanisms of mycobacterial pathogenesis; mechanisms of bacterial pathogenesis (e.g., Burkholderia); mechanisms of Coccidioides

Hematology from the Ground-Up: Lessons from Bloodless Worms

Iqbal Hamza, Ph.D.
University of Maryland School of Medicine
Wednesday, November 16, 2022 at 2 p.m. ET

Lecture Summary: "Our long-term objectives are to identify the genes and pathways responsible for heme transport and trafficking in eukaryotes that have remained poorly understood. Many have a preconceived notion that the bulk of heme biology is well-understood. How does heme, a cytotoxic hydrophobic ring with an iron atom, moves within and between cells? How does heme traffic across cellular membranes and get into hemoglobin? These open questions are enormous holes in our knowledge.

Biomedical Research in Rural America: Much Accomplished, Much To Do

Sally L. Hodder, M.D.
West Virginia University
Wednesday, November 30, 2022 at 3 p.m. ET
DeWitt Stetten Jr. Lecture

This will be a remote-only lecture at https://videocast.nih.gov/watch=46035 with a start time of 3:00 p.m. ET (and not 2:00 p.m. like all other WALS talks.) No registration is needed.

Mutant p53 Activities in Mouse Tumor Models

Gigi Lozano, Ph.D.
University of Texas MD Anderson Cancer Center
Wednesday, December 7, 2022 at 3 p.m. ET
Margaret Pittman Lecture

NEW TIME AND PLACE: 3 P.M. IN WILSON HALL, BUILDING 1, or https://videocast.nih.gov/watch=46003 — "The p53 tumor suppressor functions as a transcription factor to activate hundreds of genes. We have cataloged p53 targets in vivo in several tissues and identified a pan-tissue p53 signature of seven commonly activated genes. However most p53 transcriptional targets are unique to specific tissues.

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This page was last updated on Friday, February 10, 2023

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