Respiratory diseases

Daniel Powell

Assistant Research Scientist
Department Affiliations
Contact
(520) 626-6447

Work Summary

Dr. Powell is an Assistant Research Scientist in the Valley Fever Center for Excellence. His work focuses on the use of animal models to study the host response to both Coccidioides vaccination as well as infection. Dr Powell uses a variety of transgenic mouse models coupled with cellular immunology to dissect these host responses. His particular interest is in the initial recognition steps that allow some hosts to control infection where others do not.

Research Interest

My approach to infectious diseases has always been multi-disciplinary. There is a constant arms race between both host and pathogen. Infection changes the host response and the host response exerts changes on the pathogen. Approaching these problems from a single host or pathogen centric view limits the chance for complete understanding. Most of my published works have been in the interface between both the host and the pathogen. Joining Bio5 will allow me to join other scientist interested in multi-disciplinary answers to complex questions.

Lisa Shubitz

Associate Research Professor, Animal and Comparative Biomedical Sciences
Research Scientist
Department Affiliations
Contact
520-626-8198

Research Interest

Dr. Shubitz has been engaged with valley fever research with the Valley Fever Center for Excellence for 25 years under the direction of Dr. John Galgiani. Her research focuses on murine models of coccidioidomycosis. The bulk of her research has focused on vaccine development and in collaboration with Dr. Marc Orbach has developed a live, avirulent vaccine to prevent valley fever in dogs. The vaccine is being developed commercially. Her other interests and studies include testing new antifungal drugs in mice, immunology and immunogenetics of resistance in mice, and why dogs develop severe disease more often than humans. She is interested in developing studies of the genetics of susceptibility in dogs with other collaborators. Dr. Shubitz also consults on valley fever in companion animals. She is heavily focused on bringing research from the lab to improve clinical care, and using clinical observations to drive research to improve treatment and care of valley fever in humans and animals. The dog vaccine is a stepping stone to development of the vaccine to prevent valley fever in people.

Fernando Martinez

Professor, Pediatrics
Director, Asthma / Airway Disease Research Center
Endowed Chair, Swift - McNear
Regents Professor
Professor, Genetics - GIDP
Professor, BIO5 Institute
Contact
(520) 626-5954

Research Interest

Dr. Fernando D. Martinez is a Regents’ Professor and Director of the Asthma & Airway Disease Research Center at the University of Arizona in Tucson. Dr. Martinez is a world-renowned expert, and one of the most highly regarded researchers, in the field of childhood asthma. His primary research interests are the natural history, genetics, and treatment of childhood asthma. His groundbreaking research has had an impact on his field in numerous ways, most prominent among them the development of the concept of the early origins of asthma and COPD. This concept is now widely accepted as the potential basis for the design of new strategies for the prevention of these devastating illnesses affecting millions of children and adults worldwide. In addition, Dr. Martinez has made important contributions to our understanding of the role of gene-environment interactions in the development of asthma and allergies. He has also been the principal investigator of one of the Clinical Centers that are part of the NHLBI Asthma Treatment Networks, which have contributed fundamental new evidence on which to base national guidelines for the treatment of the disease. Dr. Martinez currently serves on national scientific boards including the NHLBI National Advisory Council and the National Scientific Council on the Developing Child. He was a member of the National Asthma Education and Prevention Program that was responsible for the development of the Expert Panel Report: Guidelines for the Diagnosis and Management of Asthma in 1997 and its first revision in 2001. He also has been a member of the FDA Pulmonary-Allergy Drugs Advisory Committee and the Board of Extramural Advisors of the National Heart, Lung, and Blood Institute (NHLBI). Dr. Martinez’s research and vision are well detailed in more than 250 original research papers and editorials, many in collaboration with investigators from all over the world. He is frequently invited to give keynote presentations at national and international meetings.

Julie Ledford

Associate Professor, Cellular and Molecular Medicine
Associate Professor, Immunobiology
Associate Professor, Medicine
Associate Professor, Clinical Translational Sciences
Associate Professor, Applied BioSciences - GIDP
Member of the Graduate Faculty
Associate Professor, BIO5 Institute
Primary Department
Contact
(520) 626-0276

Work Summary

Julie Ledford's research focuses on respiratory disease, and genetic and molecular mechanisms of allergic airway diseases in children.

Research Interest

Dr. Ledford’s current work in the area of pulmonary surfactant immunobiology combines her knowledge of mouse genetics, pulmonary disease models and immune function regulation and focuses on understanding the role of Surfactant Protein-A (SP-A) and how it regulates signaling pathways within various immune cell populations. Specifically, she is interested in how SP-A regulates degranulation, either directly or indirectly, of two important cell types in asthma: mast cells and eosinophils. More recently, Dr. Ledford’s research has focused on understanding how genetic variation within human SP-A2 alters functionality of the protein in relation to eosinophil activities and how this translates to characteristics observed in human asthma.

Stefano Guerra

Director, Epidemiology
Professor, Public Health
Professor, Medicine - (Tenure Track)
Research Scientist, Respiratory Sciences
Professor, BIO5 Institute
Contact
(520) 626-7411

Work Summary

Stefano Guerra's work includes an epidemiologic study, which used a household-based approach to assess prevalence and longitudinal changes in respiratory health. Other biomarker projects include a study on molecular biomarkers of asthma and COPD from the European Community Respiratory Health Survey.

Research Interest

Stefano Guerra, MD, PhD, is a professor of Medicine, the Director of the Population Science Unit at the Asthma and Airway Disease Research Center, and a leading expert in the natural history and biomarkers of obstructive lung diseases, including asthma and chronic obstructive pulmonary disease (COPD). As principal investigator, he is engaged in the leadership and coordination of multiple studies that use bio-specimens and phenotypic information from independent epidemiological cohorts to characterize the natural history, profile the risk factors, and identify novel biomarkers of lung diseases.

Vijay Gokhale

Associate Research Professor
Primary Department
Department Affiliations
Contact
(520) 626-4224

Work Summary

Vijay Gokhale's work includes the use of medicinal chemistry in the development of small molecule therapeutics for neuropathic pain, idiopathic pulmonary fibrosis (IPF), and acute lung injury and cancer.

Research Interest

I am a senior research scientist and oversees medicinal chemistry research at BIO5 Institute's drug discovery initiative. I oversee group of medicinal chemistry involved in the development of small molecule therapeutics for idiopathic pulmonary fibrosis (IPF), neuropathic pain, acute lung injury and cancer. I am co-founder of Reglagene and Regulonix - two biotech companies with startup technology from the University of Arizona. I have 15 years' experience in medicinal chemistry with expertise in translational drug development. I am also a co-inventor of small molecules targeting hTERT and MYC for the treatment of glioblastoma, melanoma, lymphomas and prostate cancer. Our work in the area of neuropathic pain has led to successful funding from Tech Launch Arizona and will result in STTR funding from NIH.