- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07744373
Tregs and miRNAs in Breast Milk: Effects on Infant Food Tolerance
Immunoregulatory Factors in Human Breast Milk: Relationship Between Regulatory T Cells (Tregs), miRNAs and Food Tolerance
Aperçu de l'étude
Statut
Les conditions
Description détaillée
Breast milk contains microRNAs (miRNAs) that contribute to the maturation of the infant immune system by influencing immune cell development, inflammatory mediator secretion, and maintenance of immunological homeostasis. Certain miRNAs, such as miR-92 and miR-17, play a role in B- and T-cell maturation, while miRNA-10a is associated with regulatory T cells (Tregs), which can modulate food allergic responses. This study aims to identify immunoregulatory Treg-associated miRNAs in breast milk, particularly those involved in the development and function of Treg cells; to analyze their expression in colostrum, transitional milk, and mature breast milk; to investigate their effects on Treg cells; and to examine the relationship between food tolerance and miRNA-Treg interactions.
Laboratory analyses will be conducted on maternal breast milk and infant blood samples. Breast milk samples will be manually expressed between 09:00 and 14:00 into sterile collection containers, with 7-10 mL collected per session. Five milliliters of each sample will be transferred into Eppendorf tubes and transported on ice within 30 minutes for molecular analysis. Each sample will be aliquoted into sterile 2 mL cryotubes, flash-frozen, and stored at -80°C until RNA isolation. The remaining 2-5 mL of each breast milk sample will be transported on ice within 30 minutes for immunologic and cytometric analyses. Infant blood samples obtained during routine follow-up visits will be analyzed for Treg-associated miRNAs and their target gene expression to evaluate correlations with maternal breast milk miRNA profiles and infant immune tolerance.
All laboratory analyses will be conducted using standard equipment and procedures in certified Genetics and Immunology laboratories. Through this approach, the study will examine longitudinal changes in Treg-associated miRNAs in breast milk, their correlation with infant immune parameters, and their potential role in promoting immune tolerance and preventing food allergy development. The results are expected to provide insights into early-life immune programming and may inform novel therapeutic interventions and preventive strategies.
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Gonca Keskindemirci, MD, PhD
- Numéro de téléphone: 0905324934651
- E-mail: keskindemirci@hotmail.com
Lieux d'étude
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Istanbul, Turquie (Türkiye)
- Recrutement
- Child Health and Diseases Clinic, Esencan Hospital
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Contact:
- Özden Durmuş Gönültaş, MD
- Numéro de téléphone: 905073121218
- E-mail: ozdengnlts@gmail.com
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Sous-enquêteur:
- Özden Durmuş Gönültaş, MD
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Istanbul, Turquie (Türkiye)
- Recrutement
- İstanbul University İstanbul Medical Faculty Department of Pediatrics Division of Social Pediatrics
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Contact:
- Gonca Keskindemirci, MD, PhD
- Numéro de téléphone: 0905324934651
- E-mail: keskindemirci@hotmail.com
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Sous-enquêteur:
- Özden Durmuş Gönültaş, MD
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Chercheur principal:
- Gonca Keskindemirci, Prof
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Chercheur principal:
- Gülbin E Gökçay, Prof
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Chercheur principal:
- Günnur Deniz, Prof
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Chercheur principal:
- Asuman Gedikbaşı, Prof
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Chercheur principal:
- Birsen Karaman, Prof
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Chercheur principal:
- Bilge Ş Selçuk, Assoc Prof
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Sous-enquêteur:
- Gizem Kara Elitok, Assoc Prof
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Sous-enquêteur:
- Ebru Kılıç
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Sous-enquêteur:
- Ayşenur Kökoğlu
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Sous-enquêteur:
- Suzin Tatonyan
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Lactating mothers and their infants attending the Child Health and Diseases Clinic at Istanbul University Faculty of Medicine, or the Child Health and Diseases Clinic at Esencan Hospital.
- Infants who are exclusively breastfed for the first 6 months.
- Mothers willing to provide breast milk samples at multiple time points (colostrum, transitional milk, and mature milk at 1, 4, 6, and/or 9 months postpartum).
- Infants aged 0-9 months, born at term (≥37 weeks gestation) with no major congenital anomalies or chronic illnesses.
- Mothers and infants who provide informed consent for participation in the study.
Exclusion Criteria:
- Infants who are not exclusively breastfed for the first 6 months.
- Infants with chronic illnesses or diagnosed immunodeficiency, metabolic, or gastrointestinal disorders.
- Mothers who are unable or unwilling to provide informed consent.
- Mothers with chronic illnesses or immunological disorders that may affect breast milk composition.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Expression Levels of Treg-Associated miRNAs in Breast Milk
Délai: Colostrum (day 0-7), days 10-15 (transitional milk), and at 1, 4, 6, and 9 months postpartum
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Quantitative analysis of regulatory T cell (Treg)-associated microRNA (miRNA) expression levels in breast milk samples.
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Colostrum (day 0-7), days 10-15 (transitional milk), and at 1, 4, 6, and 9 months postpartum
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- TSA-2025-41296
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