Volume 67, Issue 5 e13746
ORIGINAL ARTICLE

Innate and adaptive immune responses in subjects with CPA secondary to post-pulmonary tuberculosis lung abnormalities

Naresh Kumar Chirumamilla

Naresh Kumar Chirumamilla

Department of Internal medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - review & editing, Validation, Project administration, Data curation

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Kanika Arora

Kanika Arora

Department of Pediatric immunopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Methodology, Formal analysis, Writing - review & editing, Data curation

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Mandeep Kaur

Mandeep Kaur

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - review & editing, Methodology, Formal analysis, Data curation

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Ritesh Agarwal

Ritesh Agarwal

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - original draft, Writing - review & editing, Visualization, Validation, Methodology, Software, Formal analysis, Project administration, Resources, Supervision, Data curation

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Valliappan Muthu

Valliappan Muthu

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - review & editing, Validation, Methodology, Supervision, Resources

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Amit Rawat

Amit Rawat

Department of Pediatric immunopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - review & editing, Validation, Methodology, Supervision, Resources

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Sahajal Dhooria

Sahajal Dhooria

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: Writing - review & editing, Validation, Visualization, Methodology, Supervision

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Kuruswamy Thurai Prasad

Kuruswamy Thurai Prasad

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: Writing - review & editing, Formal analysis, Visualization, Validation, Methodology, Supervision

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Ashutosh Nath Aggarwal

Ashutosh Nath Aggarwal

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: Writing - review & editing, Visualization, Validation, Methodology, Formal analysis, Supervision

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Shivaprakash M. Rudramurthy

Shivaprakash M. Rudramurthy

Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Visualization, Writing - review & editing, Project administration, Supervision, Resources

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Arunaloke Chakrabarti

Arunaloke Chakrabarti

Doodhadhari Burfani Hospital, Haridwar, Uttarakhand, India

Contribution: Resources, Supervision, Writing - review & editing, Visualization, Methodology

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Hansraj Choudhary

Hansraj Choudhary

Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Methodology, Validation, Visualization, Writing - review & editing, Data curation

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Arnab Pal

Arnab Pal

Department of Biochemistry, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Contribution: ​Investigation, Writing - review & editing, Resources

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Inderpaul Singh Sehgal

Corresponding Author

Inderpaul Singh Sehgal

Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Correspondence

Inderpaul Singh Sehgal, Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Sector-12, Chandigarh-160012, India.

Email: [email protected]

Contribution: Conceptualization, ​Investigation, Funding acquisition, Writing - original draft, Writing - review & editing, Visualization, Validation, Methodology, Software, Formal analysis, Project administration, Resources, Supervision, Data curation

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First published: 20 May 2024
Citations: 1

Naresh Kumar Chirumamilla and Kanika Arora have contributed equally and may be considered joint first authors.

Abstract

Background

Post-tuberculosis lung abnormality (PTLA) is the most common risk factor for chronic pulmonary aspergillosis (CPA), and 14%–25% of the subjects with PTLA develop CPA. The pathogenesis and the host immune response in subjects with PTLA who develop CPA need to be better understood.

Methods

We prospectively compared the innate and adaptive immune responses mounted by patients of PTLA with or without CPA (controls). We studied the neutrophil oxidative burst (by dihydrorhodamine 123 test), classic (serum C3 and C4 levels) and alternative (mannose-binding lectin [MBL] protein levels) complement pathway, serum immunoglobulins (IgG, IgM and IgA), B and T lymphocytes and their subsets in subjects with PTLA with or without CPA.

Results

We included 111 subjects (58 CPA and 53 controls) in the current study. The mean ± SD age of the study population was 42.6 ± 15.7 years. The cases and controls were matched for age, gender distribution and body weight. Subjects with CPA had impaired neutrophil oxidative burst, lower memory T lymphocytes and impaired Th-1 immune response (lower Th-1 lymphocytes) than controls. We found no significant difference between the two groups in the serum complement levels, MBL levels, B-cell subsets and other T lymphocyte subsets.

Conclusion

Subjects with CPA secondary to PTLA have impaired neutrophil oxidative burst and a lower Th-1 response than controls.

DATA AVAILABILITY STATEMENT

The data will be made available on a reasonable request to the corresponding author.

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