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Our Research

The Shalek Lab develops and applies broadly applicable experimental and computational platforms to understand and engineer immune responses in tissues. We employ a comprehensive, five-step approach, building innovative methodologies and leveraging them with partners around the world to facilitate deeper, more mechanistic inquiry into how cells drive tissue-level behaviors across the spectrum of human health and disease.

Shalek Lab group photo, April 2025.

Shalek Lab group photo, April 2025.

Evelyn defending thesis in Ragon Auditorium, December 2025.

Evelyn defending thesis in Ragon Auditorium, December 2025.

Shalek Lab members attend conference in Hawaii, May 2025.

Shalek Lab members attend conference in Hawaii, May 2025.

Alex Shalek, Director of IMES, welcomes the community at the first All IMES retreat, September 2025.

Alex Shalek, Director of IMES, welcomes the community at the first All IMES retreat, September 2025.

Ivy defending thesis, April 2025.

Ivy defending thesis, April 2025.

Ankit presenting his research at the KI Image Awards on using spatial methods to profile periodontitis.

Ankit presenting his research at the KI Image Awards on using spatial methods to profile periodontitis.

Seq-Well, our new high-throughput single-cell RNA-sequencing technology.

Seq-Well, our new high-throughput single-cell RNA-sequencing technology.

Celebrating International Women's Day at Shalek Lab-lead training workshop in Accra, Ghana.

Celebrating International Women's Day at Shalek Lab-lead training workshop in Accra, Ghana.

Shalek Lab, September 2024

Shalek Lab, September 2024

Bokai Zhu shows Alex Shalek a current project.

Bokai Zhu shows Alex Shalek a current project.

We use single-cell transcriptomics to profile several tissues within a single organism.

We use single-cell transcriptomics to profile several tissues within a single organism.

The lab isn't afraid to embody their favorite animals in lab.

The lab isn't afraid to embody their favorite animals in lab.

Shalek Lab, December 2019.

Shalek Lab, December 2019.

The Shalek Lab aims to understand the beauty in each and every single cell.

The Shalek Lab aims to understand the beauty in each and every single cell.

Shalek Lab, 2021.

Shalek Lab, 2021.

Shalek Lab, December 2018.

Shalek Lab, December 2018.

Hexagons around the site describe who we are and what we like.

Hexagons around the site describe who we are and what we like.

Featured Publications

Scalable, compressed phenotypic screening using pooled perturbations
Scalable, compressed phenotypic screening using pooled perturbations
  • Liu et al.,
  • Nature Biotechnology,
  • 2024
Biology Biology
Cancer Cancer
Immunology Immunology
Microbiology Microbiology
R&D R&D
Technology Technology
Alex K. Shalek Alex K. Shalek
Ben Mead Ben Mead
Conner Kummerlowe Conner Kummerlowe
Ivy Liu Ivy Liu
Manny Guzman Manny Guzman
Sarah Ingabire Sarah Ingabire
Sergio Triana Sergio Triana
Walaa Kattan Walaa Kattan

High-throughput phenotypic screens using biochemical perturbations and high-content readouts are constrained by limitations of scale. To address this, we establish a method of pooling exogenous perturbations followed by computational deconvolution to reduce required sample size, labor and cost. We demonstrate the increased efficiency of compressed experimental designs compared to conventional approaches through benchmarking with a bioactive small-molecule library and a high-content imaging readout.

CD4+ T cells re-wire granuloma cellularity and regulatory networks to promote immunomodulation following Mtb reinfection
CD4+ T cells re-wire granuloma cellularity and regulatory networks to promote immunomodulation following Mtb reinfection
  • Bromley et al.,
  • Immunity,
  • 2024
Computational Methods Computational Methods
Immunology Immunology
Infectious Disease Infectious Disease
Alex K. Shalek Alex K. Shalek
Josh Bromley Josh Bromley
Sarah Nyquist Sarah Nyquist

Th1 CD4+ T cells mediate protective antiMtb immunity across biological systems and organisms. Bromley, Ganchua, et al. demonstrate that CD4+ T cells regulate immune tone in TB granulomas and are necessary for immune recall and protection against reinfection. Following reinfection, CD4+ T cells facilitate the development of a growth restrictive niche via the induction of immuno-modulatory genes and cellular interaction networks.

Variants and vaccines impact nasal immunity over three waves of SARS-CoV-2
Variants and vaccines impact nasal immunity over three waves of SARS-CoV-2
  • Walsh et al.,
  • Nature Immunology,
  • 2025
Computational Methods Computational Methods
Genomics Genomics
Immunology Immunology
Infectious Disease Infectious Disease
Medicine Medicine
Andrew Navia Andrew Navia
Carly Ziegler Carly Ziegler
Josh Bromley Josh Bromley
José Ordovas-Montañes José Ordovas-Montañes
Kyle Kimler Kyle Kimler
Micayla George Micayla George
Riley Drake Riley Drake
Samira Ibrahim Samira Ibrahim
Tasneem Jivanjee Tasneem Jivanjee
Vincent Miao Vincent Miao

Recent case reports and epidemiological data suggest that fungal infections represent an underappreciated complication among people with severe COVID-19. However, the frequency of fungal colonization in patients with COVID-19 and associations with specific immune responses in the airways remain incompletely defined.

NEWS

Omics with active learning optimizes phenotypic screens

Dec 03, 2025

Nature Reviews Drug Discovery article: Phenotypic drug discovery screens offer physiologically relevant disease-linked readouts and account for polypharmacology. However, they are more complex than target-based screens and difficult to conduct at scale. Reporting in Science, DeMeo et al. apply transcriptome datasets as a proxy for cell phenotypes and design a deep learning framework to prioritize compounds […]

This AI method could turbocharge the hunt for new medicines

Oct 23, 2025

A deep-learning design sidesteps the need for time-consuming drug-screening. An artificial intelligence (AI) model trained on complex data from human cells could provide a shortcut in the race to develop new drugs1. The approach, published on 23 October in Science, builds on a trend that is sweeping the field of drug discovery: the use of AI to speed […]

Innovators at Work: Meet the 2025–2026 Neil and Anna Rasmussen Fellows

Oct 02, 2025

Ankit Basak (Chemistry/IMES) Feature When Ankit Basak arrived at MIT for graduate school, he came with a broad, interdisciplinary background and a keen interest in developing new tools for biological research. Raised in Kolkata, India, Basak pursued an integrated BS-MS program at the Indian Institute of Science Education and Research (IISER) Kolkata, where he studied chemistry […]