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| Name | Class |
|---|---|
| ANRS, Emerging Infectious Diseases | OTHER_GOV |
| Sidaction | OTHER |
| Centre National de la Recherche Scientifique, France | OTHER |
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The clinical challenges confronting patients with HIV has shifted over the past 10 years from acquired immunodeficiency syndrome to chronic diseases including atherosclerosis, neurocognitive disorders, and osteoporosis. Chronic low grade inflammation and monocyte activation have been consistently associated with comorbidities in HIV patients. Indeed, recent studies indicate that inflammatory mediators including IL-6, IL-1, sCD14 and s CD163 produced by monocytes, but not T-cell activation, predict Non-AIDS-related events in virologically suppressed HIV-infected persons treated with combined antiretroviral therapy (cART), highlighting the important role of monocyte activation in the occurrence of comorbidities in cART-treated HIV infected patients. Yet, the underlying molecular pathways of persistent monocyte activation in cART treated HIV-infected patients remains incompletely characterized. Our preliminary results: 1/ establish a link between the activation of the inflammasome, the increased of pyrimidine-derived metabolites and the cardiovascular risk in a cohort of elderly patients; 2/ show that treated HIV-patients are characterized by increased soluble IL-1b or IL-18 in their blood suggesting that the inflammasome pathway is activated.
Objectives: In this study we will characterize the molecular pathways underlying persistent monocyte activation in treated HIV patients, through the implication of the activation of the inflammasome machinery: 1. Characterization of NOD like Receptor (NLR) expression in monocytes for IL-1b and IL-18 secretion (inflammasome activation); 2. Characterization of circulating metabolites that active the inflammasome machinery; 3. Evaluation of the link between the activation of the inflammasome, the increased of circulating metabolites and the non-AIDS related comorbidities.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| HIV patients |
| ||
| Control patients |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| blood sample | Other | 47ml blood (40 ml EDTA whole blood for Peripheral blood mononuclear cell (PBMC) and monocytes isolation and 7 ml for serum). |
|
| Measure | Description | Time Frame |
|---|---|---|
| Characterization of NLR (s) implicated in IL-18 up-regulation (inflammasome activation) in HIV |
| At baseline (D0) |
| Measure | Description | Time Frame |
|---|---|---|
| Characterization of circulating metabolites that active the inflammasome machinery |
| At baseline (D0) |
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HIV patients :
Inclusion Criteria:
Exclusion Criteria:
Control patients :
Inclusion Criteria:
Exclusion Criteria:
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HIV-infected patients with long-term suppressed viral load on cART
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| Name | Affiliation | Role |
|---|---|---|
| Linda WITTKOP, MD, PhD | Université de Bordeaux - ISPED - Inserm 2129 - CHU de Bordeaux | Study Chair |
| Isabelle PELLEGRIN, MD, PhD | University Hospital, Bordeaux | Principal Investigator |
| Benjamin FAUSTIN, PhD | Centre National de la Recherche Scientifique, France | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Service d'immunologie | Bordeaux | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28092664 | Background | Furman D, Chang J, Lartigue L, Bolen CR, Haddad F, Gaudilliere B, Ganio EA, Fragiadakis GK, Spitzer MH, Douchet I, Daburon S, Moreau JF, Nolan GP, Blanco P, Dechanet-Merville J, Dekker CL, Jojic V, Kuo CJ, Davis MM, Faustin B. Expression of specific inflammasome gene modules stratifies older individuals into two extreme clinical and immunological states. Nat Med. 2017 Feb;23(2):174-184. doi: 10.1038/nm.4267. Epub 2017 Jan 16. | |
| 28328797 |
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| ID | Term |
|---|---|
| D000163 | Acquired Immunodeficiency Syndrome |
| ID | Term |
|---|---|
| D015658 | HIV Infections |
| D000086982 | Blood-Borne Infections |
| D003141 | Communicable Diseases |
| D007239 | Infections |
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| ID | Term |
|---|---|
| D001800 | Blood Specimen Collection |
| ID | Term |
|---|---|
| D013048 | Specimen Handling |
| D019411 | Clinical Laboratory Techniques |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
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Blood sampling
| Non-AIDS related comorbidities | metabolites of interest, inflammasome activation measured by IL-1b and IL-18 | At baseline (D0) |
| Background |
| Ozanne A, Duffau P, Dauchy FA, Rigothier C, Terrien C, Lazaro E, Cazanave C, Lawson-Ayayi S, Bonnet F, Blanco P, Wittkop L, Pellegrin I; CIADIS sub-study in the ANRS CO3 Aquitaine cohort study group. Activation, senescence and inflammation markers in HIV patients: association with renal function. AIDS. 2017 May 15;31(8):1119-1128. doi: 10.1097/QAD.0000000000001461. |
| 26544576 | Background | Duffau P, Wittkop L, Lazaro E, le Marec F, Cognet C, Blanco P, Moreau JF, Dauchy FA, Cazanave C, Vandenhende MA, Bonnet F, Thiebaut R, Pellegrin I; ANRS CO3 Aquitaine Cohort Study Group. Association of immune-activation and senescence markers with non-AIDS-defining comorbidities in HIV-suppressed patients. AIDS. 2015 Oct 23;29(16):2099-108. doi: 10.1097/QAD.0000000000000807. |
| 23204178 | Background | Wittkop L, Bitard J, Lazaro E, Neau D, Bonnet F, Mercie P, Dupon M, Hessamfar M, Ventura M, Malvy D, Dabis F, Pellegrin JL, Moreau JF, Thiebaut R, Pellegrin I; Groupe d'Epidemiologie Clinique du SIDA en Aquitaine. Effect of cytomegalovirus-induced immune response, self antigen-induced immune response, and microbial translocation on chronic immune activation in successfully treated HIV type 1-infected patients: the ANRS CO3 Aquitaine Cohort. J Infect Dis. 2013 Feb 15;207(4):622-7. doi: 10.1093/infdis/jis732. Epub 2012 Nov 29. |
| D015229 |
| Sexually Transmitted Diseases, Viral |
| D012749 | Sexually Transmitted Diseases |
| D016180 | Lentivirus Infections |
| D012192 | Retroviridae Infections |
| D012327 | RNA Virus Infections |
| D014777 | Virus Diseases |
| D012897 | Slow Virus Diseases |
| D000091662 | Genital Diseases |
| D000091642 | Urogenital Diseases |
| D007153 | Immunologic Deficiency Syndromes |
| D007154 | Immune System Diseases |
| D011677 | Punctures |
| D013514 | Surgical Procedures, Operative |
| D008919 | Investigative Techniques |