Cited by 28Tuberculosis Research and EpidemiologyAutophagy in Disease and TherapyImmune responses and vaccinations

NIX-mediated mitophagy regulate metabolic reprogramming in phagocytic cells during mycobacterial infection

Open access
Mahla, Ranjeet Singh, Kumar, Akhilesh, Tutill, Helena J, Krishnaji, Sreevidhya Tarakkad, Sathyamoorthy, Bharathwaj, Noursadeghi, Mahdad, Breuer, Judith, Pandey, Amit Kumar +1 more·2021·Tuberculosis

Abstract

RNASeq analysis of PBMCs from treatment naïve TB patients and healthy controls revealed that M. tuberculosis (Mtb) infection dysregulates several metabolic pathways and upregulates BNIP3L/NIX receptor mediated mitophagy. Analysis of publicly available transcriptomic data from the NCBI-GEO database indicated that M. bovis (BCG) infection also induces similar rewiring of metabolic and mitophagy pathways. Mtb chronic infection and BCG in-vitro infection both downregulated oxidative phosphorylation and upregulated glycolysis and mitophagy; therefore, we used non-pathogenic mycobacterial species BCG as a model for Mtb infection to gain molecular insights and outcomes of this phenomenon. BCG infection in PBMCs and THP-1 macrophages induce mitophagy and glycolysis, leading to differentiation of naïve macrophage to M1 phenotype. Glucose consumption and lactate production were quantified by NMR, while the mitochondrial mass assessment was performed by mitotracker red uptake assay. Infected macrophages predominantly exhibit M1-phenotype, which is indicated by an increase in M1 specific cytokines (IL-6, TNF-α, and IL-1β) and increased NOS2/ARG1, CD86/CD206 ratio. NIX knockdown abrogates this upregulation of glycolysis, mitophagy, and secretion of pro-inflammatory cytokines in BCG infected cells, indicating that mycobacterial infection-induced immunometabolic changes are executed via NIX mediated mitophagy and are essential for macrophage differentiation and resolution of infection.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.tube.2020.102046

Cites

41 of 41 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Macrophages are the first immune cells to encounter invading pathogens and engulf microbes, dead cells, foreign substances, cancer cells and cellular debris by phagocytosis.

    “Macrophages (from Greek: large eaters, makros + phagein), are the first immune cells to encounter invading pathogens, and their goal is to engulf microbes, dead cells, foreign substances, cancer cells and cellular debris by phagocytosis [183].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [37]Refai A Gritli S Barbouche MR Essafi M Virulent Factor ESAT-6 Drives Macrophage Differentiation Toward the Pro-inflammatory M1 Phenotype and Subsequently Switches It to the Anti-inflammatory M2 Phenotype Front Cell Infect Microbiol 2018 8 327 10.3389/fcimb.2018.00327 30283745 PMC6157333 · DOI

Cited by

Sorted by citations

Authors
Mahla, R. S., Kumar, A., Tutill, H. J., Krishnaji, S. T., Sathyamoorthy, B., Noursadeghi, M., Breuer, J., Pandey, A. K., & Kumar, H.
Affiliations
  • Indian Institute of Science Education and Research, Bhopal (IN)
  • University College London (GB)
  • Great Ormond Street Hospital (GB)
  • Translational Health Science and Technology Institute (IN)
Corresponding author
  • Kumar, Akhilesh
  • Kumar, Himanshu
Venue
Tuberculosis
Publisher
Elsevier BV
Published
2021-01
Volume
126
Pages
102046
ISSN
1472-9792 (ISSN-L)
OpenAlex
W3117307511
Cited by
28
References
41
Citations by year
2026: 4 · 2025: 2 · 2024: 6 · 2023: 9 · 2022: 5 · 2021: 2
FWCI
0.52
Type
journal article
Language
en
Open access
Locations
  • Tuberculosis (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • Department of Biotechnology, Ministry of Science and Technology, India
  • British Council
  • Indian Institute of Science Education and Research Bhopal
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
Nix, mitophagy, metabolic reprogramming, Mycobacterium tuberculosis infection, Mycobacterium bovis BCG, phagocytes, macrophage polarization, glycolysis, oxidative phosphorylation, immunometabolism, inflammatory cytokines
MeSH terms
Cell Differentiation, Cells, Cultured, DNA, Gene Expression Regulation, Humans, Macrophages, Membrane Proteins, Mycobacterium tuberculosis, Proto-Oncogene Proteins, Tuberculosis, Apoptosis, Tumor Suppressor Proteins, Mitophagy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review