Chatterjee Lab

The Chatterjee lab, a part of the Mycobacteria Research Laboratories, focuses on the glycomics and glycobiology of the mycobacterial cell wall glycans such as lipopolysaccharides, glycolipids, and neutral glycans – playing important roles in the physiology and/or pathogenicity of Mycobacterium tuberculosis/leprae or in non- tuberculous mycobacteria.

In early years, Dr. Chatterjee’s laboratory focused on glycomics, glycobiology, genetics and pathogenesis of lipoarabinomannan (LAM), a major cell wall component of mycobacteria, that has antigenic properties. A major portion of this work, that was funded by WHO for two years and NIH for thirteen years, contributed to our present understanding of the role of LAM in pathogenesis. This also provided the premise for investigating LAM as a biomarker for TB diagnostics.

Over the last decade, Dr. Chatterjee’s laboratory has made efforts to advance the knowledge and resources for the global mycobacteria research community and work with others in the field to continue efforts on developing a “field applicable” diagnostic platform that will have the potential to impact multiple populations and communities. This work was funded in initial years by Bill and Melinda Gates foundation and is currently being supported by NIH. The lab also extensively uses Mass Spectrometry (MS) and  recently methods have been developed to analyze oligosaccharides without any derivatization. The Gas Chromatography- Mass Spectrometry (GC-MS) has also been used in the lab for the validation of TB patients or suspects from different geographical locations to ascertain the presence or absence of LAM in urine for diagnostics and quantification. The lab has also worked on the metabolomics analysis of granuloma development in the lungs of animals infected with M. tuberculosis and showed for the first time that semi solid NMR i.e; High Resolution Magic Angle Spinning (HR-MAS) can be applied directly to TB infected granulomas.


Research Projects

Active Research Projects


Patents & IPs

Device and Methods for Diagnosis of Active Tuberculosis
Inventors: Delphi Chatterjee et al.
CSURF Ref. No. 2021-083 (US)

Methods of Detecting Lipoarabinomannan in Urine and Diagnosing Nontuberculosis Mycobacterial Infection
(CSU) Provisional Patent 2879-224-PROV


Collected Thoughts on Mycobacterial Lipoarabinomannan, a Cell Envelope Lipoglycan.
Torrelles JB, Chatterjee D. Pathogens. 2023 Oct 26;12(11):1281. doi: 10.3390/pathogens12111281. PMID: 38003746

Culture independent markers of nontuberculous mycobacterial (NTM) lung infection and disease in the cystic fibrosis airway.
Nick JA, Malcolm KC, Hisert KB, Wheeler EA, Rysavy NM, Poch K, Caceres S, Lovell VK, Armantrout E, Saavedra MT, Calhoun K, Chatterjee D, Aboellail I, De P, Martiniano SL, Jia F, Davidson RM.Tuberculosis (Edinb). 2023 Jan;138:102276. doi: 10.1016/ Epub 2022 Nov 17.PMID: 36417800

Overcome low levels of detection limit and choice of antibody affects detection of lipoarabinomannan in pediatric tuberculosis.
Amin AG, De P, Graham B, Jensen BL, Moreau E, Chatterjee D. PLoS One. 2022 Oct 11;17(10):e0275838. doi: 10.1371/journal.pone.0275838. eCollection 2022. PMID: 36219600

Urine lipoarabinomannan in HIV uninfected, smear negative, symptomatic TB patients: effective sample pretreatment for a sensitive immunoassay and mass spectrometry.
Amin AG, De P, Graham B, Calderon RI, Franke MF, Chatterjee D. Sci Rep. 2021 Feb 3;11(1):2922. doi: 10.1038/s41598-021-82445-4. PMID: 33536495

Culturing Mycobacteria.
Wallace E, Hendrickson D, Tolli N, Mehaffy C, Peña M, Nick JA, Knabenbaur P, Watkins J, Simpson A, Amin AG, Chatterjee D, Dobos KM, Lahiri R, Adams L, Strong M, Salfinger M, Bradford R, Stedman TT, Riojas MA, Hazbón MH. Methods Mol Biol. 2021;2314:1-58. doi: 10.1007/978-1-0716-1460-0_1. PMID: 34235647

more publications


Delphi Chatterjee, Ph.D.

Lab Principal Investigator [PI]

Anita Amin, M.S.

Research Scientist IV
Laboratory Manager

Jordan Manzer, M.S.

Research Associate II

Katie Moore

Student Researcher

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contact information

Lab: Microbiology room C311

Office: Microbiology room C320

Lab (970) 491-5765, Office (970) 491-7495