Inflammatory Response to Paramyxovirus Infection in an Ex-vivo Model of Bronchial Epithelial Cells in Allogeneic HSCT Recipients (ALLOVIRO)

Inflammatory Response to Paramyxovirus Infection in an Ex-vivo Model of Bronchial Epithelial Cells in Allogeneic Hematopoietic Stem Cell Recipients

Introduction. Chronic graft-versus-host-disease (GVHD) is the main late noninfectious complication after allogeneic hematopoietic stem cell transplantation (HSCT) that can affect several organs. Bronchiolitis obliterans syndrome (BOS) is recognized as pulmonary chronic GVHD. A diagnosis of a lower respiratory tract infection in the first 100 days following transplant has been associated to the development of BOS. One hypothesis is that the first stage driving to BOS is a previous aggression of bronchial epithelial cells by various factors such as chemotherapy and radiotherapy. Thereafter, data suggest that viral infections, in particular Parainfluenza viruses could be a trigger for BOS. The alloimmune reaction activated by the respiratory virus could lead to the fibrosis process. Our hypothesis is that the bronchial epithelium of allogeneic HSCT recipients has phenotypic specificities that are associated with a specific response to the viral respiratory infections (in particular paramyxovirus) leading to the development of BOS.

Main objective. To characterize and compare the inflammatory response after infection with Parainfluenza 3 virus in an ex-vivo model of bronchial epithelial cells obtained from allogeneic HSCT recipients and controls.

Objective secondary. To characterize the phenotypic specificities of allogeneic HSCT recipients' bronchial epithelium.

Methodology, and experimental plan. Prospective, monocentric research. Bronchial biopsies obtained from patients, will be completely differentiated after 21 days of culture. Epithelial cells will be infected by the virus strain Parainfluenza 3. Transcriptome of the cells from both allogeneic HSCT patients and controls, infected and non-infected will be analyzed 48 hours after infection.

Study Overview

• Status: Unknown
• Conditions: Stem Cell Transplantation
• Intervention / Treatment: Procedure: bronchial biopsies

• Study Type: Observational
• Enrollment (Actual): 14

Contacts and Locations

Study Locations

• France
  • Paris, France, 75010
    • Saint Louis Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Case study population: patients having received Allogeneic HSCT Control study population : patients without Allogeneic HSCT

Description

Inclusion Criteria:

• Allogeneic HSCT patients [case]
• requirement of ng bronchial fibroscopy with bronchial biopsies for the exploration of FEV1 decline [case]
• non Allogeneic HSCT patients [control]
• .requirement of bronchial fibroscopy for exploration of a lung mass or of interstitial lung disease, requiring bronchial biopsies [control]

Exclusion Criteria:

• Minor or major patients protected
• Radiotherapy or chemotherapy [control group]
• Respiratory infection
• History of smoking >= 15 packs/yr

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Case; patients having received heterologous stem cell transplantation (HSCT)	Procedure: bronchial biopsies; bronchial fibroscopy with bronchial biopsies
Control; patients without HSCT	Procedure: bronchial biopsies; bronchial fibroscopy with bronchial biopsies

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cells Transcriptome after infection by parainfluenza virus	inflammatory response after infection with Parainfluenza 3 virus in an ex-vivo model of bronchial epithelial cells assessed by cells transcriptome	21 days

Collaborators and Investigators

• Sponsor: Assistance Publique - Hôpitaux de Paris

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2018
• Primary Completion (Actual): October 1, 2019
• Study Completion (Anticipated): July 1, 2020

Study Registration Dates

• First Submitted: September 24, 2018
• First Submitted That Met QC Criteria: September 24, 2018
• First Posted (Actual): September 25, 2018

Study Record Updates

• Last Update Posted (Actual): January 9, 2020
• Last Update Submitted That Met QC Criteria: January 6, 2020
• Last Verified: December 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: RNA Virus Infections; Virus Diseases; Infections; Mononegavirales Infections; Paramyxoviridae Infections
• Other Study ID Numbers: 2017-A01325-48

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No