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Identification of a single parainfluenza-specific lymphocyte in tonsillar focal disease and verification of its involvement in the pathogenesis with single-cell RNA-sequencing

Identification of a single parainfluenza-specific lymphocyte in tonsillar focal disease and verification of its involvement in the pathogenesis with single-cell RNA-sequencing

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1050220136
Enrollment
50
Registered
2022-12-19
Start date
2022-12-19
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

IgA nephropathy, palmoplantar pustulosis, sleep apnea syndrome, tonsillar hypertrophy tonsillar focal disease, palatotonsillectomy, lymphocyte, Haemophilus Parainfluenzae

Interventions

None listed

Sponsors

Kaneko Fumie
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1)Patients who have indicated for palatotonsillectomy for the treatment of IgA nephropathy as tonsillar focal disease. (2) Patients who have indicated for palatotonsillectomy for the treatment of palmoplantar pustulosis as tonsillar focal disease. (3) Patients who have indicated for palatotonsillectomy with sleep apnea syndrome or enlarged palatine tonsils to relieve upper airway stenosis.

Exclusion criteria

Exclusion criteria: (1) Patients with enlarged tonsils due to neoplastic lesions such as malignant tumors (tonsil cancer, malignant lymphoma, etc.) and benign tumors (papilloma of the pharynx), or suspected patients (2) Patients undergoing emergency palatotonsillectomy due to severe bacterial infection such as peritonsillar abscess and recurrent tonsillitis (3) Other patients deemed inappropriate to participate in the study.

Design outcomes

Primary

MeasureTime frame
(1) Medical record information Age, sex, name of the disease for which palato- tonsillectomy was indicated, blood test results, and bacterial test results (taken from tonsil crypts and tonsil parenchyma). (2) Information obtained from the removed tonsil tissue and peripheral blood 1. Bacteriological profile of the tonsil crypts and surface by comprehensive genetic analysis. 2. Quantitative analysis of gene expression by single cell analysis of tonsils and peripheral blood mononuclear cells. 3. Quantitative analysis of gene expression in tonsils and peripheral blood mononuclear cells after CpG-ODN stimulation by single cell analysis.

Contacts

Public ContactFumie Kaneko

Wakayama Medical University

kaneko.fumie@twmu.ac.jp+81-73-447-2300

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026