Pilot Project Awardees- Dr. Lesseur, MD, PhD Assistant Professor

Mar 5, 2025 | Conduits News, Edition 6, Pilot Project Awardees

Dr. Lesseur is a molecular epidemiologist and bioinformatician with research interests in multi-omics (epi/genomics) and gene-environment interactions in relation to early-life, pregnancy, and cancer outcomes. Currently, she is an Assistant Professor in the Dept. of Environmental Medicine and Climate Science, at the Icahn School of Medicine at Mount Sinai. Dr. Lesseur is particularly interested in characterizing the molecular landscape of the human placenta and how it is affected by environmental exposures and pregnancy complications possibly mediating the role of the placenta in future disease programming, with consequences for both mothers and infants. She has worked in multiple studies evaluating placental DNA methylation and/or gene expression in relation to maternal and infant outcomes, with >25 publications on the topic. Dr. Lesseur has extensive training in handling, analyzing, and integrating large-scale genotype, DNA methylation and RNA-seq datasets from population-based studies.

Dr. Lesseur’s study titled Exploring associations between the placental transcriptome and maternal postpartum depressive symptoms aims to leverage existing placental samples from mother-infant pairs in the ongoing Generation C-SF birth cohort in the Mount Sinai Hospital to:

  1. Investigate associations between the placental transcriptome and 3-month postpartum Edinburgh Postnatal Depression Scale (EPDS) scores using a gene co-expression network approach.
  2. Investigate associations between candidate neuro-immune-endocrine genes and maternal EPDS scores (3-month postpartum).

 

ConduITS is supported by NCATS of the NIH’s CTSA Program. Any use of CTSA-supported resources requires citation of grant number UL1TR004419 awarded to ISMMS in the acknowledgment section of every publication resulting from this support. Adherence to the NIH Public Access Policy is also required.

Recent ConduITS News

What is the Mount Sinai Exposomics Core?

The Mount Sinai Exposomics Core centers around The Institute for Exposomic Research at the Icahn School of Medicine at Mount Sinai, which was established in 2017 under the leadership of Robert O. Wright, MD, MPH and Rosalind J. Wright, MD, MPH, international leaders...

read more

What does the Exposomics Core do?

The Exposomics Core is at the cutting edge of research to quantify the exposome (i.e., nutrition, social risk factors, and chemical exposure) via lab assays, geospatial modeling, data mining and artificial intelligence. We disseminate our work to cultivate the public...

read more

Highlighted Exposomics Core Events

In 2025, the Exposomics Core was a part of multiple events, including: Lunchtime Chat Webinars (held throughout the year) On January 8, 2025, Maayan Yitshak-Sade, PhD, MPH (Associate Professor, Department of Environmental Medicine, Icahn School of Medicine at Mount...

read more

Exposomics Core Highlighted Information

More information on faculty and staff updates can be found in the departmental newsletters, which are sent out throughout the year. Below are the most recent editions from 2025: December 2025 July 2025 April 2025 The Institute for Exposomic Research is also on...

read more

Trainee Corner

Mount Sinai CTSA Featured Trainees

Dr. Lee 2025 KL2 Scholar

Dr. Lee 2025 KL2 Scholar

Dr. Lee is an Assistant Professor in the Division of Surgical Oncology. Her proposal is titled ‘Generating a Multimodal Machine Learning Model for Prediction of Thyroid Cancer Recurrence’. Her mentors will be: Girish Nadkarni, MD, MPH, Michael Marin, MD, and Gerald...

read more
Dr. Xiaoqi 2025 KL2 Scholar

Dr. Xiaoqi 2025 KL2 Scholar

Dr. Xiaoqi is an Assistant Professor in the Department of Immunology and Immunotherapy. His proposal is titled ‘Nanoparticle STING Immunotherapy Against TP53-Mutated Acute Myeloid Leukemia’. His mentors will be: Brian Brown, PhD, and Joshua Brody, MD.  Dr. Xiaoqi is...

read more