Impact of Adipose Tissue in COVID-19

• Conditions: Covid19
• Interventions: Other: Adipose tissue

• Registration Number: NCT04639440
• Lead Sponsor: Assistance Publique - Hôpitaux de Paris

Brief Summary

Overweight or obese patients are particularly exposed to severe forms of COVID-19. Few data suggest that adipose tissue infected with SARS-CoV-2 could be involved in the onset of the cytokine storm seen in severe forms of COVID-19. The aim of this study is to determine the pathogenesis of SARS-CoV-2-infection of adipose tissue. In particular the investigators will study how this virus enters the adipocyte and how it modulates metabolism and inflammation in the adipose tissue. From these data, the investigators hope to determine at the adipose tissue level, original therapeutic targets to modulate the effects of SARS-CoV-2 at the systemic level.

Detailed Description

Not available

Study Timeline

• Status Verified: 2020-10
• Study First Submitted: 2020-10-28
• Study First Submitted QC: 2020-11-19
• Last Update Submitted: 2020-11-19
• Study First Posted: 2020-11-20
• Last Update Posted: 2020-11-20
• Study Start: 2020-11-23
• Primary Completion: 2021-11-22
• Study Completion: 2021-11-23

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Age greater than or equal to 18 years
• All patients who are obese or overweight (> 25 kg/m2) or non-obese (< or = 25 kg/m2) operated for abdominal vascular surgery
• Beneficiary or entitled to a social security scheme (except AME)

Exclusion Criteria

• Pregnant or breastfeeding woman
• Patient refusal
• Patient deprived of liberty or subject to a legal protection measure (guardianship, curatorship)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Patients without overweight	Adipose tissue	-
Obese or overweight patients	Adipose tissue	-

Primary Outcome Measures

Name	Time	Method
Comparison of the expression of ACE2 and TMPRSS2 in the subcutaneous and visceral adipose tissue of obese patients. Determination of cells expressing ACE2 and TMPRSS2 in whole human adipose tissue.	12 months	Analysis of the expression of mRNA and ACE2 and TMPRSS2 proteins in the subcutaneous and visceral adipose tissue of normal weight and obese patients

Secondary Outcome Measures

Name	Time	Method
Demonstration of entry and replication of SARS-CoV-2 in human adipose tissue	12 months	Infection of human adipocytes in lean and obese subjects by SARS-CoV-2
Consequences of infection with SARS-CoV-2 on the metabolism and inflammatory state of adipose tissue.	12 months	Evaluation of SARS-CoV-2 infection on the lipolysis of adipose tissue / adipocytes in thin and obese subjects.
Effect of SARS-CoV-2 infection of adipose tissue / adipocytes from thin and obese subjects on endoplasmic reticulum (ER) homeostasis.	12 months	Study whether infection with SARS-CoV-2 activates the RE stress pathways in adipose tissue
Target endoplasmic reticulum stress to reduce spread of SARS-CoV-2 from adipose tissue	12 months	Use of RE stress inhibitors on adipocytes infected with SARS-CoV-2 and assess their effect on the maturation of the virus in infected cells.

Trial Locations

Locations (1)

Hôpital de la Pitié Salpêtrière; 🇫🇷 Paris, France