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Thomas J. Mariani, Ph.D.

Contact Information

Phone Numbers

Office: (585) 276-4616

Fax: (585) 276-2642

Research Labs

Faculty Appointments



Premature infant morbidity and mortality often results from pulmonary complications, primarily insufficient lung maturation or alveolar formation. Likewise, many adult lung diseases involve obliteration of the distal respiratory structure. With the advent of clinical means to dramatically improve pre-term infant survival, there has been a growing appreciation of a relationship between developmental complications and susceptibility to chronic lung disease. The broad objectives of Dr. Mariani's laboratory are to identify the genetic mechanisms of susceptibility to chronic lung diseases, particularly focusing upon their developmental antecedents and the influence of environmental factors. Recent efforts have also investigated biomarkers and disease mechanisms involved in infant respiratory infection. Dr. Mariani's research program focuses upon defining regulatory networks involved in lung development and maturation, and which may be perturbed in diseased states. His laboratory uses a combination of animal modeling research and studies of human subjects. He is a leader in the application of genomics methods to pulmonary biology and lung disease. Current research projects in the Mariani lab include:

1. Studying immune cell dysregulation associated with chronic respiratory morbidity following preterm birth.

2. Identifying diagnostic biomarkers and therapeutic targets defining severity of clinical responses to respiratory syncytial virus infection in infants.

3. Determining the contribution of resident cells and the extracellular matrix to normal lung development, lung homeostasis and susceptibility to respiratory disease.

4. Characterizing the cellular and pathological effects of exposure to non-traditional tobacco-related products, particularly during childhood.

This work is currently supported by the NIH.



B.S. | Rutgers University, Cook College

PhD | Rutgers University
Microbiology and Molecular Genetics

Post-doctoral Training & Residency

1997 - 1998
Research Associate, Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO

1994 - 1997
Postdoctoral Fellow, Dermatology Division, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO


Andy Tager Award for Excellence in Mentoring
Sponsor: ATS Assembly on RMCB

Mentored 2nd place winner - Respiratory Disease Young Investigators' Forum

Mentored 1st place winner - Respiratory Disease Young Investigators' Forum

2000 - 2003
Parker B. Francis Fellowship in Pulmonary Research

1994 - 1997
Individual National Research Service Award
Sponsor: NHLBI

1994 - 1994
Novartis (Ciba) Foundation Bursar
Sponsor: Ciba

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Journal Articles

Danopoulos S, Deutsch GH, Dumortier C, Mariani TJ, Al Alam D. "Lung disease manifestations in Down Syndrome." American journal of physiology. Lung cellular and molecular physiology.. 2021 Sep 1; Epub 2021 Sep 01.

Peterson DR, Baran AM, Bhattacharya S, Branche AR, Croft DP, Corbett AM, Walsh EE, Falsey AR, Mariani TJ. "Gene Expression Risk Scores for COVID-19 Illness Severity." . 2021 Aug 24; Epub 2021 Aug 24.

Meng Y, Groth SW, Hodgkinson CA, Mariani TJ. "Serotonin system genes contribute to the susceptibility to obesity in Black adolescents." Obesity science & practice.. 2021 Aug 0; 7(4):441-449. Epub 2021 Mar 27.

Books & Chapters

Chapter Title: Developmental genetics of the pulmonary system
Book Title: Principles of Developmental Genetics
Author List: Mariani, T.J
Edited By: Moody, S.A
Published By: Elsevier 2006 in San Diego, CA

Chapter Title: Microarray techniques and data in asthma and COPD
Book Title: Lung Biology in Health and Disease
Author List: Mariani, T.J.; Ramoni, M.F
Edited By: Postma, D.S.; Weiss, S.T
Published By: Informa Health Care 2006 in New York, NY

Chapter Title: Extracellular matrix gene expression in developing mouse aorta
Book Title: Extracellular Matrices and Development
Author List: McLean, S.E.; Mecham, B.H.; Kelleher, C.M.; Mariani, T.J.; Mecham, R.P
Edited By: Miner, J.H., Editor; Wassarman, P.M., Series Editor.
Published By: Elsevier 2005