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For: Zijlmans DGM, Meijer L, Vernes MK, Wubben JAM, Hofman L, Louwerse AL, Sterck EHM, Langermans JAM, Stammes MA. Effect of Housing Conditions on Cortisol and Body Fat Levels in Female Rhesus Macaques. Biology (Basel) 2021;10:744. [PMID: 34439976 PMCID: PMC8389645 DOI: 10.3390/biology10080744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 11/17/2022]

For:	Zijlmans DGM, Meijer L, Vernes MK, Wubben JAM, Hofman L, Louwerse AL, Sterck EHM, Langermans JAM, Stammes MA. Effect of Housing Conditions on Cortisol and Body Fat Levels in Female Rhesus Macaques. Biology (Basel) 2021;10:744. [PMID: 34439976 PMCID: PMC8389645 DOI: 10.3390/biology10080744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 11/17/2022]

Number	Cited by Other Article(s)
1	Castell N, Guerrero-Martin SM, Rubin LH, Shirk EN, Brockhurst JK, Lyons CE, Najarro KM, Queen SE, Carlson BW, Adams RJ, Morrell CN, Gama L, Graham DR, Zink C, Mankowski JL, Clements JE, Metcalf Pate KA. Effect of Single Housing on Innate Immune Activation in Immunodeficiency Virus-Infected Pigtail Macaques ( Macaca nemestrina ) as a Model of Psychosocial Stress in Acute HIV Infection. Psychosom Med 2022;84:966-975. [PMID: 36162063 PMCID: PMC9553260 DOI: 10.1097/psy.0000000000001132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 07/27/2022] [Indexed: 11/26/2022] Abstract OBJECTIVE Simian immunodeficiency virus (SIV) infection of macaques recapitulates many aspects of HIV pathogenesis and is similarly affected by both genetic and environmental factors. Psychosocial stress is associated with immune system dysregulation and worse clinical outcomes in people with HIV. This study assessed the impact of single housing, as a model of psychosocial stress, on innate immune responses of pigtailed macaques ( Macaca nemestrina ) during acute SIV infection. METHODS A retrospective analysis of acute SIV infection of 2- to si6-year-old male pigtailed macaques was performed to compare the innate immune responses of socially ( n = 41) and singly ( n = 35) housed animals. Measures included absolute monocyte count and subsets, and in a subset ( n ≤ 18) platelet counts and activation data. RESULTS SIV infection resulted in the expected innate immune parameter changes with a modulating effect from housing condition. Monocyte number increased after infection for both groups, driven by classical monocytes (CD14 + CD16 - ), with a greater increase in socially housed animals (227%, p < .001, by day 14 compared with preinoculation time points). Platelet numbers recovered more quickly in the socially housed animals. Platelet activation (P-selectin) increased by 65% ( p = .004) and major histocompatibility complex class I surface expression by 40% ( p = .009) from preinoculation only in socially housed animals, whereas no change in these measures occurred in singly housed animals. CONCLUSIONS Chronic psychosocial stress produced by single housing may play an immunomodulatory role in the innate immune response to acute retroviral infection. Dysregulated innate immunity could be one of the pathways by which psychosocial stress contributes to immune suppression and increased disease severity in people with HIV. Collapse Key Words simian immunodeficiency virus psychosocial stress innate immunity infectious disease animal models human immunodeficiency virus art = antiretroviral therapy b = unstandardized β coefficient cbc = complete blood count csf = cerebrospinal fluid cns = central nervous system hiv = human immunodeficiency virus pwh = people with hiv se = standard error siv = simian immunodeficiency virus Collapse MESH Headings Animals HIV Infections Housing Immunity, Innate Macaca nemestrina Male P-Selectin/pharmacology Retrospective Studies Simian Acquired Immunodeficiency Syndrome/pathology Simian Immunodeficiency Virus/genetics Stress, Psychological Collapse Grants U42 OD013117 NIH HHS P30 MH075673 NIMH NIH HHS P30 AI094189 NIAID NIH HHS R01 NS089482 NINDS NIH HHS P01 MH070306 NIMH NIH HHS R01 NS097221 NINDS NIH HHS T32 AI102623 NIAID NIH HHS T32 OD011089 NIH HHS P40 OD013117 NIH HHS P01 AI131306 NIAID NIH HHS K01 OD018244 NIH HHS R01 NS055651 NINDS NIH HHS P40 RR019995 NCRR NIH HHS Collapse Affiliation(s) Collapse

Number

Cited by Other Article(s)

Castell N, Guerrero-Martin SM, Rubin LH, Shirk EN, Brockhurst JK, Lyons CE, Najarro KM, Queen SE, Carlson BW, Adams RJ, Morrell CN, Gama L, Graham DR, Zink C, Mankowski JL, Clements JE, Metcalf Pate KA. Effect of Single Housing on Innate Immune Activation in Immunodeficiency Virus-Infected Pigtail Macaques ( Macaca nemestrina ) as a Model of Psychosocial Stress in Acute HIV Infection. Psychosom Med 2022;84:966-975. [PMID: 36162063 PMCID: PMC9553260 DOI: 10.1097/psy.0000000000001132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 07/27/2022] [Indexed: 11/26/2022]

Abstract

OBJECTIVE

Simian immunodeficiency virus (SIV) infection of macaques recapitulates many aspects of HIV pathogenesis and is similarly affected by both genetic and environmental factors. Psychosocial stress is associated with immune system dysregulation and worse clinical outcomes in people with HIV. This study assessed the impact of single housing, as a model of psychosocial stress, on innate immune responses of pigtailed macaques ( Macaca nemestrina ) during acute SIV infection.

METHODS

A retrospective analysis of acute SIV infection of 2- to si6-year-old male pigtailed macaques was performed to compare the innate immune responses of socially ( n = 41) and singly ( n = 35) housed animals. Measures included absolute monocyte count and subsets, and in a subset ( n ≤ 18) platelet counts and activation data.

RESULTS

SIV infection resulted in the expected innate immune parameter changes with a modulating effect from housing condition. Monocyte number increased after infection for both groups, driven by classical monocytes (CD14 + CD16 - ), with a greater increase in socially housed animals (227%, p < .001, by day 14 compared with preinoculation time points). Platelet numbers recovered more quickly in the socially housed animals. Platelet activation (P-selectin) increased by 65% ( p = .004) and major histocompatibility complex class I surface expression by 40% ( p = .009) from preinoculation only in socially housed animals, whereas no change in these measures occurred in singly housed animals.

CONCLUSIONS

Chronic psychosocial stress produced by single housing may play an immunomodulatory role in the innate immune response to acute retroviral infection. Dysregulated innate immunity could be one of the pathways by which psychosocial stress contributes to immune suppression and increased disease severity in people with HIV.

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