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Bone marrow plasma metabonomics of idiopathic acquired aplastic anemia patients using 1H nuclear magnetic resonance spectroscopy

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Abstract

Introduction

Idiopathic acquired aplastic anemia (AA) is a bone marrow failure disorder where aberrant T-cell functions lead to depletion of hematopoietic stem and progenitor cells in the bone marrow (BM) microenvironment. T-cells undergo metabolic rewiring, which regulates their proliferation and differentiation. Therefore, studying metabolic variation in AA patients may aid us with a better understanding of the T-cell regulatory pathways governed by metabolites and their pathological engagement in the disease.

Objective

To identify the differential metabolites in BM plasma of AA patients, AA follow-up (AAF) in comparison to normal controls (NC) and to identify potential disease biomarker(s).

Methods

The study used 1D 1H NMR Carr–Purcell–Meiboom–Gill (CPMG) spectra to identify the metabolites present in the BM plasma samples of AA (n = 40), AAF (n = 16), and NC (n = 20). Metabolic differences between the groups and predictive biomarkers were identified by using multivariate analysis and receiver operating characteristic (ROC) module of Metaboanalyst V5.0 tool, respectively.

Results

The AA and AAF samples were well discriminated from NC group as per Principal Component analysis (PCA). Further, we found significant alteration in the levels of 17 metabolites in AA involved in amino-acid (Leucine, serine, threonine, phenylalanine, lysine, histidine, valine, tyrosine, and proline), carbohydrate (Glucose, lactate and mannose), fatty acid (Acetate, glycerol myo-inositol and citrate), and purine metabolism (hypoxanthine) in comparison to NC. Additionally, biomarker analysis predicted Hypoxanthine and Acetate can be used as a potential biomarker.

Conclusion

The study highlights the significant metabolic alterations in the BM plasma of AA patients which may have implication in the disease pathobiology.

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Data availability

Most of the data relevant to this study has been included in the article. The additional data will be made available from the corresponding authors upon reasonable request. The 1 H CPMG NMR raw and CHENOMX processed data have been deposited to the Zenodo (https://zenodo.org/). Zenodo (https://doi.org/10.5281/zenodo.7390046). The CPMG NMR raw and CHENOMX processed data will be available for future validation studies on request to corresponding authors.

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Acknowledgements

The authors would like to thank Gurvinder Singh, PhD Student, CBMR, SGPGIMS, Lucknow for his help with the initial processing of samples, to Neetika Mishra, Technical assistant at Department of Hematology, SGPGIMS, Lucknow for technical assistance. The authors would also like to express their deepest gratitude to the patients who provided their consent to participate in the study.

Funding

The work in the CPC laboratory is supported by funding from the Department of Biotechnology (DBT) Grant No. (BT/PR31421/MED/31/407/2019) and Wellcome Trust DBT India Alliance Grant No. (IA/I/16/1/502374). Jyotika Srivastava is a recipient of INSPIRE Ph.D. Fellowship (IF170881) from the Department of Science and Technology (DST) and Rimjhim Trivedi is a recipient of Academy of Scientific and Innovative Research (AcSIR) fellowship (10BB22j71001).

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Authors and Affiliations

Authors

Contributions

JS: conceptualization, methodology, resources, investigation, formal analysis, visualization and writing; RT: methodology, resources, investigation, formal analysis, software, investigation, visualization; PS: methodology, resources, writing; SY: data curation, resources; RG: Visualization, writing; SN: resources, supervision; DK: conceptualization, resources, software, data curation, validation, writing, visualization, supervision; CPC: conceptualization, writing, investigation, supervision, project administration and funding acquisition.

Corresponding authors

Correspondence to Dinesh Kumar or Chandra P. Chaturvedi.

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The authors declare that they have no competing interests.

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Srivastava, J., Trivedi, R., Saxena, P. et al. Bone marrow plasma metabonomics of idiopathic acquired aplastic anemia patients using 1H nuclear magnetic resonance spectroscopy. Metabolomics 19, 94 (2023). https://doi.org/10.1007/s11306-023-02056-0

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  • DOI: https://doi.org/10.1007/s11306-023-02056-0

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