1
|
Meireles FATP, Antunes D, Temerozo JR, Bou-Habib DC, Caffarena ER. PACAP key interactions with PAC1, VPAC1, and VPAC2 identified by molecular dynamics simulations. J Biomol Struct Dyn 2024; 42:3128-3144. [PMID: 37216328 DOI: 10.1080/07391102.2023.2213349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/01/2023] [Indexed: 05/24/2023]
Abstract
The neuropeptide pituitary adenylate cyclase-activating polypeptide (PACAP) belongs to the glucagon/secretin family. PACAP interacts with the pituitary adenylate cyclase-activating polypeptide receptor type 1 (PAC1) and vasoactive intestinal peptide receptors 1 and 2 (VPAC1 and VPAC2), exhibiting functions in the immune, endocrine, and nervous systems. This peptide is upregulated in numerous instances of brain injury, acting as a neuroprotective agent. It can also suppress HIV-1 and SARS-CoV-2 viral replication in vitro. This work aimed to identify, in each peptide-receptor system, the most relevant residues for complex stability and interaction energy communication via Molecular Dynamics (MD), Free Energy calculations, and Protein-energy networks, thus revealing in detail the underlying mechanisms of activation of these receptors. Hydrogen bond formation, interaction energies, and computational alanine scanning between PACAP and its receptors showed that His1, Asp3, Arg12, Arg14, and Lys15 are crucial to the peptide's stability. Furthermore, several PACAP interactions with structurally conserved positions deemed necessary in GPCR B1 activation, including Arg2.60, Lys2.67, and Glu7.42, were significant for the peptide's stability within the receptors. According to the protein-energy network, the connection between Asp3 of PACAP and the receptors' conserved Arg2.60 represents a critical energy communication hub in all complexes. Additionally, the ECDs of the receptors were also found to function as energy communication hubs for PACAP. Although the overall binding mode of PACAP in the three receptors was found to be highly conserved, Arg12 and Tyr13 of PACAP were more prominent in complex with PAC1, while Ser2 of PACAP was with VPAC2. The detailed analyses performed in this work pave the way for using PACAP and its receptors as therapeutic targets.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | - Deborah Antunes
- Laboratory of Applied Genomics and Bioinnovations, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Jairo R Temerozo
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, Brazil
| | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, Brazil
| | - Ernesto Raul Caffarena
- Computational Biophysics and Molecular Modeling Group, Scientific Computing Program/Fiocruz, Rio de Janeiro, Brazil
| |
Collapse
|
2
|
Gupta S, Viotti A, Eichwald T, Roger A, Kaufmann E, Othman R, Ghasemlou N, Rafei M, Foster SL, Talbot S. Navigating the blurred path of mixed neuroimmune signaling. J Allergy Clin Immunol 2024; 153:924-938. [PMID: 38373475 DOI: 10.1016/j.jaci.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
Evolution has created complex mechanisms to sense environmental danger and protect tissues, with the nervous and immune systems playing pivotal roles. These systems work together, coordinating local and systemic reflexes to restore homeostasis in response to tissue injury and infection. By sharing receptors and ligands, they influence the pathogenesis of various diseases. Recently, a less-explored aspect of neuroimmune communication has emerged: the release of neuropeptides from immune cells and cytokines/chemokines from sensory neurons. This article reviews evidence of this unique neuroimmune interplay and its impact on the development of allergy, inflammation, itch, and pain. We highlight the effects of this neuroimmune signaling on vital processes such as host defense, tissue repair, and inflammation resolution, providing avenues for exploration of the underlying mechanisms and therapeutic potential of this signaling.
Collapse
Affiliation(s)
- Surbhi Gupta
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
| | - Alice Viotti
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
| | - Tuany Eichwald
- Department of Pharmacology and Physiology, Karolinska Institutet, Solna, Sweden; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Anais Roger
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Aix-Marseille University, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Eva Kaufmann
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Rahmeh Othman
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Nader Ghasemlou
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Moutih Rafei
- Department of Pharmacology and Physiology, University of Montréal, Montréal, Québec, Canada
| | - Simmie L Foster
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
| | - Sebastien Talbot
- Department of Pharmacology and Physiology, Karolinska Institutet, Solna, Sweden; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
| |
Collapse
|
3
|
Hanč P, Messou MA, Wang Y, von Andrian UH. Control of myeloid cell functions by nociceptors. Front Immunol 2023; 14:1127571. [PMID: 37006298 PMCID: PMC10064072 DOI: 10.3389/fimmu.2023.1127571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
The immune system has evolved to protect the host from infectious agents, parasites, and tumor growth, and to ensure the maintenance of homeostasis. Similarly, the primary function of the somatosensory branch of the peripheral nervous system is to collect and interpret sensory information about the environment, allowing the organism to react to or avoid situations that could otherwise have deleterious effects. Consequently, a teleological argument can be made that it is of advantage for the two systems to cooperate and form an “integrated defense system” that benefits from the unique strengths of both subsystems. Indeed, nociceptors, sensory neurons that detect noxious stimuli and elicit the sensation of pain or itch, exhibit potent immunomodulatory capabilities. Depending on the context and the cellular identity of their communication partners, nociceptors can play both pro- or anti-inflammatory roles, promote tissue repair or aggravate inflammatory damage, improve resistance to pathogens or impair their clearance. In light of such variability, it is not surprising that the full extent of interactions between nociceptors and the immune system remains to be established. Nonetheless, the field of peripheral neuroimmunology is advancing at a rapid pace, and general rules that appear to govern the outcomes of such neuroimmune interactions are beginning to emerge. Thus, in this review, we summarize our current understanding of the interaction between nociceptors and, specifically, the myeloid cells of the innate immune system, while pointing out some of the outstanding questions and unresolved controversies in the field. We focus on such interactions within the densely innervated barrier tissues, which can serve as points of entry for infectious agents and, where known, highlight the molecular mechanisms underlying these interactions.
Collapse
Affiliation(s)
- Pavel Hanč
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- *Correspondence: Pavel Hanč, ; Ulrich H. von Andrian,
| | - Marie-Angèle Messou
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Yidi Wang
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Ulrich H. von Andrian
- Department of Immunology, Harvard Medical School, Boston, MA, United States
- The Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- *Correspondence: Pavel Hanč, ; Ulrich H. von Andrian,
| |
Collapse
|
4
|
Interleukin-27 Promotes Divergent Effects on HIV-1 Infection in Peripheral Blood Mononuclear Cells through BST-2/Tetherin. J Virol 2023; 97:e0175222. [PMID: 36602368 PMCID: PMC9888194 DOI: 10.1128/jvi.01752-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Interleukin-27 (IL-27) is able to inhibit HIV-1 replication in peripheral blood mononuclear cells (PBMCs), macrophages, and dendritic cells. Here, we identify that IL-27 can produce opposing effects on HIV-1 replication in PBMCs and that the HIV-1 restriction factor BST-2/Tetherin is involved in both inhibitory and enhancing effects on HIV-1 infection induced by IL-27. IL-27 inhibited HIV-1 replication when added to cells 2 h after infection, promoting the prototypical BST-2/Tetherin-induced virion accumulation at the cell membrane of HIV-1-infected PBMCs. BST-2/Tetherin gene expression was significantly upregulated in the IL-27-treated PBMCs, with a simultaneous increase in the number of BST-2/Tetherin+ cells. The silencing of BST-2/Tetherin diminished the anti-HIV-1 effect of IL-27. In contrast, IL-27 increased HIV-1 production when added to infected cells 4 days after infection. This enhancing effect was prevented by BST-2/Tetherin gene knockdown, which also permitted IL-27 to function again as an HIV-1 inhibitory factor. These contrasting roles of IL-27 were associated with the dynamic of viral production, since the IL-27-mediated enhancement of virus replication was prevented by antiretroviral treatment of infected cells, as well as by keeping cells under agitation to avoid cell-to-cell contact. Likewise, inhibition of CD11a, an integrin associated with HIV-1 cell-to-cell transmission, abrogated the IL-27 enhancement of HIV-1 production. Our findings illustrate the complexity of the HIV-1-host interactions and may impact the potential therapeutic use of IL-27 and other soluble mediators that induce BST-2/Tetherin expression for HIV-1 infection. IMPORTANCE Here, we describe new findings related to the ability of the cytokine IL-27 to regulate the growth of HIV-1 in CD4+ T lymphocytes. IL-27 has long been considered a potent inhibitor of HIV-1 replication, a notion based on several reports showing that this cytokine controls HIV-1 infection in peripheral blood mononuclear cells (PBMCs), monocyte-derived macrophages, and dendritic cells. However, our present results are contrary to the current knowledge that IL-27 acts only as a powerful downregulator of HIV-1 replication. We observed that IL-27 can either prevent or enhance viral growth in PBMCs, an outcome dependent on when this cytokine is added to the infected cells. We detected that the increase of HIV-1 dissemination is due to enhanced cell-to-cell transmission with the involvement of the interferon-induced HIV-1 restriction factor BST-2/Tetherin and CD11a (LFA-1), an integrin that participates in formation of virological synapse.
Collapse
|
5
|
C-Fiber Degeneration Enhances Alveolar Macrophage-Mediated IFN-α/β Response to Respiratory Syncytial Virus. Microbiol Spectr 2022; 10:e0241022. [PMID: 36350149 PMCID: PMC9769737 DOI: 10.1128/spectrum.02410-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Stimulation of unmyelinated C fibers, the nociceptive sensory nerves, by noxious stimuli is able to initiate host responses. Host defensive responses against respiratory syncytial virus (RSV) infection rely on the induction of a robust alpha/beta interferon (IFN-α/β) response, which acts to restrict viral production and promote antiviral immune responses. Alveolar macrophages (AMs) are the major source of IFN-α/β upon RSV infection. Here, we found that C fibers are involved in host defense against RSV infection. Compared to the control mice post-RSV infection, degeneration and inhibition of C fibers by blockade of transient receptor potential vanilloid 1 (TRPV1) lowered viral replication and alleviated lung inflammation. Importantly, AMs were markedly elevated in C-fiber-degenerated (KCF) mice post-RSV infection, which was associated with higher IFN-α/β secretion as measured in bronchoalveolar lavage fluid (BALF) samples. Degeneration of C fibers contributed to the production of vasoactive intestinal peptide (VIP), which modulated AM and IFN-α/β levels to protect against RSV infection. Collectively, these findings revealed the key role of C fibers in regulating AM and IFN-α/β responses against RSV infection via VIP, opening the possibility for new therapeutic strategies against RSV. IMPORTANCE Despite continuous advances in medicine, safe and effective drugs against RSV infection remain elusive. As such, host-RSV interactions and host-directed therapies require further research. Unmyelinated C fibers, the nociceptive sensory nerves, play an important role in regulating the host response to virus. In the present study, from the perspective of neuroimmune interactions, we clarified that C-fiber degeneration enhanced the AM-mediated IFN-α/β response against RSV via VIP, providing potential therapeutic targets for the treatment of RSV infection.
Collapse
|
6
|
Ramhorst R, Grasso E, Vota D, Gori S, Hauk V, Paparini D, Calo G, Leirós CP. From decidualization to pregnancy progression: An overview of immune and metabolic effects of VIP. Am J Reprod Immunol 2022; 88:e13601. [DOI: 10.1111/aji.13601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/22/2022] [Accepted: 07/06/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Rosanna Ramhorst
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Esteban Grasso
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Daiana Vota
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Soledad Gori
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Vanesa Hauk
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Daniel Paparini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Guillermina Calo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| | - Claudia Pérez Leirós
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN‐CONICET) Laboratorio de Inmunofarmacología Universidad de Buenos Aires (UBA) Buenos Aires Argentina
| |
Collapse
|
7
|
Mukherjee T, Behl T, Sharma S, Sehgal A, Singh S, Sharma N, Mathew B, Kaur J, Kaur R, Das M, Aleya L, Bungau S. Anticipated pharmacological role of Aviptadil on COVID-19. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:8109-8125. [PMID: 34846667 PMCID: PMC8630992 DOI: 10.1007/s11356-021-17824-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 11/24/2021] [Indexed: 04/16/2023]
Abstract
Vasoactive intestinal peptide (VIP) is a neuropeptide that is produced by the lymphoid cells and plays a major role in immunological functions for controlling the homeostasis of the immune system. VIP has been identified as a potent anti-inflammatory factor, in boosting both innate and adaptive immunity. Since December 2019, SARS-Cov-2 was found responsible for the disease COVID-19 which has spread worldwide. No specific therapies or 100% effective vaccines are yet available for the treatment of COVID-19. Drug repositioning may offer a strategy and several drugs have been repurposed, including lopinavir/ritonavir, remdesivir, favipiravir, and tocilizumab. This paper describes the main pharmacological properties of synthetic VIP drug (Aviptadil) which is now under clinical trials. A patented formulation of vasoactive intestinal polypeptide (VIP), named RLF-100 (Aviptadil), was developed and finally got approved for human trials by FDA in 2001 and in European medicines agency in 2005. It was awarded Orphan Drug Designation in 2001 by the US FDA for the treatment of acute respiratory distress syndrome and for the treatment of pulmonary arterial hypertension in 2005. Investigational new drug (IND) licenses for human trials of Aviptadil was guaranteed by both the US FDA and EMEA. Preliminary clinical trials seem to support Aviptadil's benefit. However, such drugs like Aviptadil in COVID-19 patients have peculiar safety profiles. Thus, adequate clinical trials are necessary for these compounds.
Collapse
Affiliation(s)
- Tuhin Mukherjee
- Guru Nanak Institute of Pharmaceutical Science and Technology, Kolkata, West Bengal, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Sanchay Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Bijo Mathew
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi, India
| | - Jasleen Kaur
- Guru Nanak Institute of Pharmaceutical Science and Technology, Kolkata, West Bengal, India
| | - Ratandeep Kaur
- Guru Nanak Institute of Pharmaceutical Science and Technology, Kolkata, West Bengal, India
| | - Mayukh Das
- Guru Nanak Institute of Pharmaceutical Science and Technology, Kolkata, West Bengal, India
| | - Lotfi Aleya
- Chrono-Environment Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, Besançon, France
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| |
Collapse
|
8
|
Vota D, Torti M, Paparini D, Giovannoni F, Merech F, Hauk V, Calo G, Ramhorst R, Garcia C, Pérez Leirós C. Zika virus infection of first trimester trophoblast cells affects cell migration, metabolism and immune homeostasis control. J Cell Physiol 2020; 236:4913-4925. [PMID: 33305387 DOI: 10.1002/jcp.30203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 01/15/2023]
Abstract
Zika virus (ZIKV) re-emerged after circulating almost undetected for many years and the last spread in 2015 was the major outbreak reported. ZIKV infection was associated with congenital fetal growth anomalies such as microcephaly, brain calcifications, and low birth weight related to fetal growth restriction. In this study, we investigated the effect of ZIKV infection on first trimester trophoblast cell function and metabolism. We also studied the interaction of trophoblast cells with decidual immune populations. Results presented here demonstrate that ZIKV infection triggered a strong antiviral response in first trimester cytotrophoblast-derived cells, impaired cell migration, increased glucose uptake and GLUT3 expression, and reduced brain derived neurotrophic factor (BDNF) expression. ZIKV infection also conditioned trophoblast cells to favor a tolerogenic response since an increased recruitment of CD14+ monocytes bearing an anti-inflammatory profile, increased CD4+ T cells and NK CD56Dim and NK CD56Bright populations and an increment in the population CD4+ FOXP3+ IL-10+ cells was observed. Interestingly, when ZIKV infection of trophoblast cells occurred in the presence of the vasoactive intestinal peptide (VIP) there was lower detection of viral RNA and reduced toll-like receptor-3 and viperin messenger RNA expression, along with reduced CD56Dim cells trafficking to trophoblast conditioned media. The effects of ZIKV infection on trophoblast cell function and immune-trophoblast interaction shown here could contribute to defective placentation and ZIKV persistence at the fetal-maternal interface. The inhibitory effect of VIP on ZIKV infection of trophoblast cells highlights its potential as a candidate molecule to interfere ZIKV infection during early pregnancy.
Collapse
Affiliation(s)
- Daiana Vota
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - María Torti
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Estrategias Antivrales. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Daniel Paparini
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Federico Giovannoni
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Estrategias Antivrales. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Fátima Merech
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Vanesa Hauk
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Guillermina Calo
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Rosanna Ramhorst
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Cybele Garcia
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Estrategias Antivrales. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| | - Claudia Pérez Leirós
- Universidad de Buenos Aires (UBA). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-CONICET). Laboratorio de Inmunofarmacología. Facultad de Ciencias Exactas y Naturales (FCEN-UBA), Buenos Aires, Argentina
| |
Collapse
|
9
|
Mojoli A, Gonçalves BS, Temerozo JR, Cister-Alves B, Geddes V, Herlinger A, Aguiar RS, Pilotto JH, Saraiva EM, Bou-Habib DC. Neutrophil extracellular traps from healthy donors and HIV-1-infected individuals restrict HIV-1 production in macrophages. Sci Rep 2020; 10:19603. [PMID: 33177532 PMCID: PMC7658358 DOI: 10.1038/s41598-020-75357-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/14/2020] [Indexed: 02/07/2023] Open
Abstract
Neutrophils release extracellular traps (NETs) after interaction with microorganisms and physiological or synthetic products. NETs consist of decondensed chromatin complexed with proteins, some of them with microbicidal properties. Because NETs can modulate the functioning of HIV-1 target cells, we aimed to verify whether they modify HIV-1 replication in macrophages. We found that exposure of HIV-1-infected macrophages to NETs resulted in significant inhibition of viral replication. The NET anti-HIV-1 action was independent of other soluble factors released by the activated neutrophils, but otherwise dependent on the molecular integrity of NETs, since NET-treatment with protease or DNase abolished this effect. NETs induced macrophage production of the anti-HIV-1 β-chemokines Rantes and MIP-1β, and reduced the levels of integrated HIV-1 DNA in the macrophage genome, which may explain the decreased virus production by infected macrophages. Moreover, the residual virions released by NET-treated HIV-1-infected macrophages lost infectivity. In addition, elevated levels of DNA-elastase complexes were detected in the plasma from HIV-1-infected individuals, and neutrophils from these patients released NETs, which also inhibited HIV-1 replication in in vitro infected macrophages. Our results reveal that NETs may function as an innate immunity mechanism able to restrain HIV-1 production in macrophages.
Collapse
Affiliation(s)
- Andrés Mojoli
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Barbara Simonson Gonçalves
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Jairo R Temerozo
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, Brazil
| | - Bruno Cister-Alves
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Victor Geddes
- Laboratory of Molecular Virology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alice Herlinger
- Laboratory of Molecular Virology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renato Santana Aguiar
- Laboratory of Molecular Virology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - José Henrique Pilotto
- Laboratory of AIDS and Molecular Immunology, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Elvira M Saraiva
- Laboratory of Immunobiology of Leishmaniasis, Department of Immunology, Paulo de Goes Institute of Microbiology, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373, Bloco D/D1-44, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil.
| | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil. .,National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, Brazil.
| |
Collapse
|
10
|
Arteaga-Blanco LA, Mojoli A, Monteiro RQ, Sandim V, Menna-Barreto RFS, Pereira-Dutra FS, Bozza PT, Resende RDO, Bou-Habib DC. Characterization and internalization of small extracellular vesicles released by human primary macrophages derived from circulating monocytes. PLoS One 2020; 15:e0237795. [PMID: 32833989 PMCID: PMC7444811 DOI: 10.1371/journal.pone.0237795] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/02/2020] [Indexed: 12/19/2022] Open
Abstract
Extracellular vesicles (EVs) are small membrane-limited structures derived from outward budding of the plasma membrane or endosomal system that participate in cellular communication processes through the transport of bioactive molecules to recipient cells. To date, there are no published methodological works showing step-by-step the isolation, characterization and internalization of small EVs secreted by human primary macrophages derived from circulating monocytes (MDM-derived sEVs). Thus, here we aimed to provide an alternative protocol based on differential ultracentrifugation (dUC) to describe small EVs (sEVs) from these cells. Monocyte-derived macrophages were cultured in EV-free medium during 24, 48 or 72 h and, then, EVs were isolated from culture supernatants by (dUC). Macrophages secreted a large amount of sEVs in the first 24 h, with size ranging from 40-150 nm, peaking at 105 nm, as evaluated by nanoparticle tracking analysis and scanning electron microscopy. The markers Alix, CD63 and CD81 were detected by immunoblotting in EV samples, and the co-localization of CD63 and CD81 after sucrose density gradient ultracentrifugation (S-DGUC) indicated the presence of sEVs from late endosomal origin. Confocal fluorescence revealed that the sEVs were internalized by primary macrophages after three hours of co-culture. The methodology here applied aims to contribute for enhancing reproducibility between the limited number of available protocols for the isolation and characterization of MDM-derived sEVs, thus providing basic knowledge in the area of EV methods that can be useful for those investigators working with sEVs released by human primary macrophages derived from circulating monocytes.
Collapse
Affiliation(s)
| | - Andrés Mojoli
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Robson Q. Monteiro
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vanessa Sandim
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Patrícia T. Bozza
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | | | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, Brazil
| |
Collapse
|
11
|
Velázquez J, Pérez G, Semple SL, Rodríguez-Ramos T, Díaz-Rosales P, Ordás MDC, Lugo JM, Dixon B, Tafalla C, Estrada MP, Carpio Y. First in vivo evidence of pituitary adenylate cyclase-activating polypeptide antiviral activity in teleost. FISH & SHELLFISH IMMUNOLOGY 2020; 103:58-65. [PMID: 32334130 DOI: 10.1016/j.fsi.2020.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/02/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a multifunctional neuropeptide belonging to the glucagon/secretin superfamily. In teleost fish, PACAP has been demonstrated to have an immunomodulatory role. Although previous studies have shown that viral/bacterial infections can influence the transcription of PACAP splicing variants and associated receptors in salmonids, the antiviral activity of PACAP has never been studied in teleost. Thus, in the present work, we investigated in vitro the influence of synthetic Clarias gariepinus PACAP-38 on the transcription of genes related to viral immunity using the rainbow trout monocyte/macrophage-like cell line RTS11 as a model. Positive transcriptional modulation of interferon gamma (IFNγ), interferon alpha (FNα1,2), interleukin 8 (IL-8), Mx and Toll-like receptor 3 (TLR3) genes was found in a dose and time dependent manner. We also explored how a pre-treatment with PACAP could enhance antiviral immune response using poly (I:C) as viral mimic. Interferons and IL-8 transcription levels were enhanced when PACAP was added 24 h previous to poly (I:C) exposure. With these evidences, we tested in vivo how PACAP administration by immersion bath affected the survival of rainbow trout fry to a challenge with viral hemorrhagic septicemia virus (VHSV). After challenge, PACAP-treated fish had increased survival compared to non-treated/challenge fish. Furthermore, PACAP was able to decrease the viral load in spleen/kidney and stimulate the transcription of IFNs and Mx when compared to untreated infected fish. Altogether, the results of this work provide valuable insights regarding the role of teleost PACAP in antiviral immunity and point to a potential application of this peptide to reduce the impact of viral infections in aquaculture.
Collapse
Affiliation(s)
- Janet Velázquez
- Veterinary Immunology Project, Animal Biotechnology Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Geysi Pérez
- Veterinary Immunology Project, Animal Biotechnology Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Shawna L Semple
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | - Tania Rodríguez-Ramos
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | - Patricia Díaz-Rosales
- Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain
| | - María Del Camino Ordás
- Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain
| | - Juana María Lugo
- Veterinary Immunology Project, Animal Biotechnology Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Brian Dixon
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | - Carolina Tafalla
- Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain.
| | - Mario Pablo Estrada
- Veterinary Immunology Project, Animal Biotechnology Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
| | - Yamila Carpio
- Veterinary Immunology Project, Animal Biotechnology Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
| |
Collapse
|
12
|
Gorini G, Fourati S, Vaccari M, Rahman MA, Gordon SN, Brown DR, Law L, Chang J, Green R, Barrenäs F, Liyanage NPM, Doster MN, Schifanella L, Bissa M, Silva de Castro I, Washington-Parks R, Galli V, Fuller DH, Santra S, Agy M, Pal R, Palermo RE, Tomaras GD, Shen X, LaBranche CC, Montefiori DC, Venzon DJ, Trinh HV, Rao M, Gale M, Sekaly RP, Franchini G. Engagement of monocytes, NK cells, and CD4+ Th1 cells by ALVAC-SIV vaccination results in a decreased risk of SIVmac251 vaginal acquisition. PLoS Pathog 2020; 16:e1008377. [PMID: 32163525 PMCID: PMC7093029 DOI: 10.1371/journal.ppat.1008377] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 03/24/2020] [Accepted: 02/03/2020] [Indexed: 12/12/2022] Open
Abstract
The recombinant Canarypox ALVAC-HIV/gp120/alum vaccine regimen was the first to significantly decrease the risk of HIV acquisition in humans, with equal effectiveness in both males and females. Similarly, an equivalent SIV-based ALVAC vaccine regimen decreased the risk of virus acquisition in Indian rhesus macaques of both sexes following intrarectal exposure to low doses of SIVmac251. Here, we demonstrate that the ALVAC-SIV/gp120/alum vaccine is also efficacious in female Chinese rhesus macaques following intravaginal exposure to low doses of SIVmac251 and we confirm that CD14+ classical monocytes are a strong correlate of decreased risk of virus acquisition. Furthermore, we demonstrate that the frequency of CD14+ cells and/or their gene expression correlates with blood Type 1 CD4+ T helper cells, α4β7+ plasmablasts, and vaginal cytocidal NKG2A+ cells. To better understand the correlate of protection, we contrasted the ALVAC-SIV vaccine with a NYVAC-based SIV/gp120 regimen that used the identical immunogen. We found that NYVAC-SIV induced higher immune activation via CD4+Ki67+CD38+ and CD4+Ki67+α4β7+ T cells, higher SIV envelope-specific IFN-γ producing cells, equivalent ADCC, and did not decrease the risk of SIVmac251 acquisition. Using the systems biology approach, we demonstrate that specific expression profiles of plasmablasts, NKG2A+ cells, and monocytes elicited by the ALVAC-based regimen correlated with decreased risk of virus acquisition.
Collapse
Affiliation(s)
- Giacomo Gorini
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Slim Fourati
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Monica Vaccari
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Mohammad Arif Rahman
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Shari N. Gordon
- Department of Infectious Diseases, GlaxoSmithKline R&D, Research Triangle Park, North Carolina, United States of America
| | - Dallas R. Brown
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Lynn Law
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Jean Chang
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Richard Green
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Fredrik Barrenäs
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Namal P. M. Liyanage
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Melvin N. Doster
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Luca Schifanella
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Massimiliano Bissa
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Isabela Silva de Castro
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Robyn Washington-Parks
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Veronica Galli
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Deborah H. Fuller
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Sampa Santra
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States of America
| | - Michael Agy
- Division of Surgical Sciences, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Ranajit Pal
- Advanced Bioscience Laboratories, Rockville, Maryland, United States of America
| | - Robert E. Palermo
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Georgia D. Tomaras
- Division of Surgical Sciences, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Xiaoying Shen
- Division of Surgical Sciences, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Celia C. LaBranche
- Division of Surgical Sciences, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - David C. Montefiori
- Division of Surgical Sciences, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - David J. Venzon
- Biostatistics and Data Management Section, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Hung V. Trinh
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Mangala Rao
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Michael Gale
- Department of Immunology, Center for Innate Immunity and Immune Disease, and Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Rafick P. Sekaly
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Genoveffa Franchini
- Animal Models and Retroviral Vaccines Section, National Cancer Institute, Bethesda, Maryland, United States of America
| |
Collapse
|
13
|
Denes V, Geck P, Mester A, Gabriel R. Pituitary Adenylate Cyclase-Activating Polypeptide: 30 Years in Research Spotlight and 600 Million Years in Service. J Clin Med 2019; 8:jcm8091488. [PMID: 31540472 PMCID: PMC6780647 DOI: 10.3390/jcm8091488] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/02/2019] [Accepted: 09/10/2019] [Indexed: 12/12/2022] Open
Abstract
Emerging from the depths of evolution, pituitary adenylate cyclase-activating polypeptide (PACAP) and its receptors (i.e., PAC1, VPAC1, VPAC2) are present in multicellular organisms from Tunicates to humans and govern a remarkable number of physiological processes. Consequently, the clinical relevance of PACAP systems spans a multifaceted palette that includes more than 40 disorders. We aimed to present the versatility of PACAP1-38 actions with a focus on three aspects: (1) when PACAP1-38 could be a cause of a malfunction, (2) when PACAP1-38 could be the cure for a malfunction, and (3) when PACAP1-38 could either improve or impair biology. PACAP1-38 is implicated in the pathophysiology of migraine and post-traumatic stress disorder whereas an outstanding protective potential has been established in ischemia and in Alzheimer’s disease. Lastly, PACAP receptors could mediate opposing effects both in cancers and in inflammation. In the light of the above, the duration and concentrations of PACAP agents must be carefully set at any application to avoid unwanted consequences. An enormous amount of data accumulated since its discovery (1989) and the first clinical trials are dated in 2017. Thus in the field of PACAP research: “this is not the end, not even the beginning of the end, but maybe the end of the beginning.”
Collapse
Affiliation(s)
- Viktoria Denes
- Department of Experimental Zoology and Neurobiology, University of Pécs, 7624 Pécs, Hungary.
| | - Peter Geck
- Department of Immunology, School of Medicine, Tufts University, Boston, MA 02111, USA.
| | - Adrienn Mester
- Department of Experimental Zoology and Neurobiology, University of Pécs, 7624 Pécs, Hungary.
| | - Robert Gabriel
- Department of Experimental Zoology and Neurobiology, University of Pécs, 7624 Pécs, Hungary.
| |
Collapse
|
14
|
Lugo JM, Tafalla C, Oliva A, Pons T, Oliva B, Aquilino C, Morales R, Estrada MP. Evidence for antimicrobial and anticancer activity of pituitary adenylate cyclase-activating polypeptide (PACAP) from North African catfish (Clarias gariepinus): Its potential use as novel therapeutic agent in fish and humans. FISH & SHELLFISH IMMUNOLOGY 2019; 86:559-570. [PMID: 30481557 DOI: 10.1016/j.fsi.2018.11.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/19/2018] [Accepted: 11/23/2018] [Indexed: 06/09/2023]
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a regulatory neuropeptide that belongs to the secretin/glucagon superfamily, of which some members have shown antimicrobial activities. Contrasting to mammals, published studies on the action of PACAP in non-mammalian vertebrate immune system remain scarce. Some of our recent studies added this peptide to the growing list of mediators that allow cross-talk between the nervous, endocrine and immune systems in teleost fish. Regulation of PACAP and expression of its receptor genes has been demonstrated during an immune response mounted against acute bacterial infection in fish, though the direct effect of PACAP against fish pathogenic bacteria has never been addressed. Current work provides evidence of antimicrobial activity of Clarias gariepinus PACAP against a wide spectrum of Gram-negative and Gram-positive bacteria and fungi of interest for human medicine and aquaculture, in which computational prediction studies supported the putative PACAP therapeutic activity. Results also indicated that catfish PACAP not only exhibits inhibitory effects on pathogen growth, but also affects the proliferation of human non-small cell lung cancer cell line H460 in a dose-dependent manner. The observed cytotoxic activity of catfish PACAP against human tumor cells and pathogenic microorganisms, but not healthy fish and mammalian erythrocytes support a potential physiological role of this neuropeptide in selective microbial and cancer cell killing. All together, our findings extend the mechanisms by which PACAP could contribute to immune responses, and open up new avenues for future therapeutic application of this bioactive neuropeptide.
Collapse
Affiliation(s)
- Juana Maria Lugo
- Animal Biotechnology Department, Aquatic Biotechnology Group, Center for Genetic Engineering and Biotechnology, Havana, 10600, Cuba; Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain
| | - Carolina Tafalla
- Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain
| | - Ayme Oliva
- Animal Biotechnology Department, Veterinary Clinical Research Group, Center for Genetic Engineering and Biotechnology, Havana, 10600, Cuba
| | - Tirso Pons
- Structural Biology and BioComputing Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Brizaida Oliva
- Pharmaceutical Department. Laboratory of Cancer Biology. Center for Genetic Engineering and Biotechnology, Havana, 10600, Cuba
| | - Carolina Aquilino
- Fish Immunology and Pathology Group, Animal Health Research Center (CISA-INIA), Valdeolmos, 28130, Madrid, Spain
| | - Reynold Morales
- Animal Biotechnology Department, Aquatic Biotechnology Group, Center for Genetic Engineering and Biotechnology, Havana, 10600, Cuba
| | - Mario Pablo Estrada
- Animal Biotechnology Department, Aquatic Biotechnology Group, Center for Genetic Engineering and Biotechnology, Havana, 10600, Cuba.
| |
Collapse
|
15
|
Jurberg AD, Cotta-de-Almeida V, Temerozo JR, Savino W, Bou-Habib DC, Riederer I. Neuroendocrine Control of Macrophage Development and Function. Front Immunol 2018; 9:1440. [PMID: 29988513 PMCID: PMC6026652 DOI: 10.3389/fimmu.2018.01440] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/11/2018] [Indexed: 12/25/2022] Open
Abstract
Macrophages carry out numerous physiological activities that are essential for both systemic and local homeostasis, as well as innate and adaptive immune responses. Their biology is intricately regulated by hormones, neuropeptides, and neurotransmitters, establishing distinct neuroendocrine axes. The control is pleiotropic, including maturation of bone marrow-derived myeloid precursors, cell differentiation into functional subpopulations, cytotoxic activity, phagocytosis, production of inflammatory mediators, antigen presentation, and activation of effector lymphocytes. Additionally, neuroendocrine components modulate macrophage ability to influence tumor growth and to prevent the spreading of infective agents. Interestingly, macrophage-derived factors enhance glucocorticoid production through the stimulation of the hypothalamic–pituitary–adrenal axis. These bidirectional effects highlight a tightly controlled balance between neuroendocrine stimuli and macrophage function in the development of innate and adaptive immune responses. Herein, we discuss how components of neuroendocrine axes impact on macrophage development and function and may ultimately influence inflammation, tissue repair, infection, or cancer progression. The knowledge of the crosstalk between macrophages and endocrine or brain-derived components may contribute to improve and create new approaches with clinical relevance in homeostatic or pathological conditions.
Collapse
Affiliation(s)
- Arnon Dias Jurberg
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Vinícius Cotta-de-Almeida
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Jairo Ramos Temerozo
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Ingo Riederer
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| |
Collapse
|
16
|
Temerozo JR, de Azevedo SSD, Insuela DBR, Vieira RC, Ferreira PLC, Carvalho VF, Bello G, Bou-Habib DC. The Neuropeptides Vasoactive Intestinal Peptide and Pituitary Adenylate Cyclase-Activating Polypeptide Control HIV-1 Infection in Macrophages Through Activation of Protein Kinases A and C. Front Immunol 2018; 9:1336. [PMID: 29951068 PMCID: PMC6008521 DOI: 10.3389/fimmu.2018.01336] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 05/29/2018] [Indexed: 12/19/2022] Open
Abstract
Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating polypeptide (PACAP) are highly similar neuropeptides present in several tissues, endowed with immunoregulatory functions and other systemic effects. We previously reported that both neuropeptides reduce viral production in HIV-1-infected primary macrophages, with the participation of β-chemokines and IL-10, and now we describe molecular mechanisms engaged in this activity. Macrophages exposed to VIP or PACAP before HIV-1 infection showed resistance to viral replication, comparable to that observed when the cells were treated after infection. Also, multiple treatments with a suboptimal dose of VIP or PACAP after macrophage infection resulted in a decline of virus production similar to the inhibition promoted by a single exposure to the optimal inhibitory concentration. Cellular signaling pathways involving cAMP production and activation of protein kinases A and C were critical components of the VIP and PACAP anti-HIV-1 effects. Analysis of the transcription factors and the transcriptional/cell cycle regulators showed that VIP and PACAP induced cAMP response element-binding protein activation, inhibited NF-kB, and reduced Cyclin D1 levels in HIV-1-infected cells. Remarkably, VIP and PACAP promoted G-to-A mutations in the HIV-1 provirus, matching those derived from the activity of the APOBEC family of viral restriction factors, and reduced viral infectivity. In conclusion, our findings strengthen the antiretroviral potential of VIP and PACAP and point to new therapeutic approaches to control the progression of HIV-1 infection.
Collapse
Affiliation(s)
- Jairo R Temerozo
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Suwellen S D de Azevedo
- Laboratory of AIDS and Molecular Immunology, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Daniella B R Insuela
- Laboratory of Inflammation, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Rhaíssa C Vieira
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Pedro L C Ferreira
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Vinícius F Carvalho
- National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil.,Laboratory of Inflammation, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Gonzalo Bello
- Laboratory of AIDS and Molecular Immunology, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| |
Collapse
|
17
|
Carrión M, Pérez-García S, Martínez C, Juarranz Y, Estrada-Capetillo L, Puig-Kröger A, Gomariz RP, Gutiérrez-Cañas I. VIP impairs acquisition of the macrophage proinflammatory polarization profile. J Leukoc Biol 2016; 100:1385-1393. [PMID: 27381006 DOI: 10.1189/jlb.3a0116-032rr] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 06/16/2016] [Accepted: 06/22/2016] [Indexed: 12/13/2022] Open
Abstract
This study tested the hypothesis that vasoactive intestinal peptide (VIP) is able to modify the macrophage inflammatory profile, thus supporting its therapeutic role in autoimmune diseases. Macrophages are innate immune cells that display a variety of functions and inflammatory profiles in response to the environment that critically controls their polarization. Deregulation between the pro- and anti-inflammatory phenotypes has been involved in different pathologies. Rheumatoid arthritis (RA) is an autoimmune disease, in which macrophages are considered central effectors of synovial inflammation, displaying a proinflammatory profile. VIP is a pleiotropic neuropeptide with proven anti-inflammatory actions. As modulation of the macrophage phenotype has been implicated in the resolution of inflammatory diseases, we evaluated whether VIP is able to modulate human macrophage polarization. In vitro-polarized macrophages by GM-CSF (GM-MØ), with a proinflammatory profile, expressed higher levels of VIP receptors, vasoactive intestinal polypeptide receptors 1 and 2 (VPAC1 and VPAC2, respectively), than macrophages polarized by M-CSF (M-MØ) with anti-inflammatory activities. RA synovial macrophages, according to their GM-CSF-like polarization state, expressed both VPAC1 and VPAC2. In vitro-generated GM-MØ exposed to VIP exhibited an up-regulation of M-MØ gene marker expression, whereas their proinflammatory cytokine profile was reduced in favor of an anti-inflammatory function. Likewise, in GM-MØ, generated in the presence of VIP, VIP somehow changes the macrophages physiology profile to a less-damaging phenotype. Therefore, these results add new value to VIP as an immunomodulatory agent on inflammatory diseases.
Collapse
Affiliation(s)
- Mar Carrión
- Faculty of Biology, Department of Cell Biology, Complutense University, Madrid, Spain
| | - Selene Pérez-García
- Faculty of Biology, Department of Cell Biology, Complutense University, Madrid, Spain
| | - Carmen Martínez
- Faculty of Medicine, Department of Cell Biology, Complutense University, Madrid, Spain; and
| | - Yasmina Juarranz
- Faculty of Biology, Department of Cell Biology, Complutense University, Madrid, Spain
| | - Lizbeth Estrada-Capetillo
- Immuno-metabolism Laboratory, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Amaya Puig-Kröger
- Immuno-metabolism Laboratory, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Rosa P Gomariz
- Faculty of Biology, Department of Cell Biology, Complutense University, Madrid, Spain;
| | - Irene Gutiérrez-Cañas
- Faculty of Biology, Department of Cell Biology, Complutense University, Madrid, Spain
| |
Collapse
|
18
|
Chaudhury A. VIP in HIV Diarrhea: Finding Links for the "Slim Disease". Front Physiol 2016; 6:402. [PMID: 26779028 PMCID: PMC4688351 DOI: 10.3389/fphys.2015.00402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/07/2015] [Indexed: 12/12/2022] Open
Affiliation(s)
- Arun Chaudhury
- GIM Foundation and Arkansas Department of Health Little Rock, AR, USA
| |
Collapse
|
19
|
Gorgoglione B, Carpio Y, Secombes CJ, Taylor NGH, Lugo JM, Estrada MP. Viral and bacterial septicaemic infections modulate the expression of PACAP splicing variants and VIP/PACAP receptors in brown trout immune organs. FISH & SHELLFISH IMMUNOLOGY 2015; 47:923-932. [PMID: 26481517 DOI: 10.1016/j.fsi.2015.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 09/17/2015] [Accepted: 10/12/2015] [Indexed: 06/05/2023]
Abstract
Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) and PACAP-Related Peptide (PRP) are structurally similar peptides encoded in the same transcripts. Their transcription has been detected not only in the brain but also in a wide range of peripheral tissues, even including organs of the immune system. PACAP exerts pleiotropic activities through G-protein coupled membrane receptors: the PACAP-specific PAC-1 and the VPAC-1 and VPAC-2 receptors that exhibit similar affinities for the Vasoactive Intestinal Peptide (VIP) and PACAP. Recent findings added PACAP and its receptors to the growing list of mediators that allow cross-talk between the nervous, endocrine and immune systems in fish. In this study the expression of genes encoding for PACAP and PRP, as well as VIP/PACAP receptors was studied in laboratory-reared brown trout (Salmo trutta) after septicaemic infections. Respectively Viral Haemorrhagic Septicaemia Virus (VHSV-Ia) or the Gram-negative bacterium Yersinia ruckeri (ser. O1 - biot. 2) were used in infection challenges. Kidney and spleen, the teleost main lymphopoietic organs, were sampled during the first two weeks post-infection. RT-qPCR analysis assessed specific pathogens burden and gene expression levels. PACAP and PRP transcription in each organ was positively correlated to the respective pathogen burden, assessed targeting the VHSV-glycoprotein or Y. ruckeri 16S rRNA. Results showed as the transcription of PACAP splicing variants and VIP/PACAP receptors is modulated in these organs during an acute viral and bacterial septicaemic infections in brown trout. These gene expression results provide clues as to how the PACAP system is modulated in fish, confirming an involvement during active immune responses elicited by both viral and bacterial aetiological agents. However, further experimental evidence is still required to fully elucidate and characterize the role of PACAP and PRP for an efficient immune response against pathogens.
Collapse
Affiliation(s)
- Bartolomeo Gorgoglione
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Scotland, UK; CEFAS Weymouth Laboratory, Weymouth, England, UK
| | - Yamila Carpio
- Aquatic Biotechnology Project, Centre for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Christopher J Secombes
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Scotland, UK
| | | | - Juana María Lugo
- Aquatic Biotechnology Project, Centre for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Mario Pablo Estrada
- Aquatic Biotechnology Project, Centre for Genetic Engineering and Biotechnology, Havana, Cuba.
| |
Collapse
|
20
|
Morara S, Colangelo AM, Provini L. Microglia-Induced Maladaptive Plasticity Can Be Modulated by Neuropeptides In Vivo. Neural Plast 2015; 2015:135342. [PMID: 26273481 PMCID: PMC4529944 DOI: 10.1155/2015/135342] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 06/25/2015] [Indexed: 02/06/2023] Open
Abstract
Microglia-induced maladaptive plasticity is being recognized as a major cause of deleterious self-sustaining pathological processes that occur in neurodegenerative and neuroinflammatory diseases. Microglia, the primary homeostatic guardian of the central nervous system, exert critical functions both during development, in neural circuit reshaping, and during adult life, in the brain physiological and pathological surveillance. This delicate critical role can be disrupted by neural, but also peripheral, noxious stimuli that can prime microglia to become overreactive to a second noxious stimulus or worsen underlying pathological processes. Among regulators of microglia, neuropeptides can play a major role. Their receptors are widely expressed in microglial cells and neuropeptide challenge can potently influence microglial activity in vitro. More relevantly, this regulator activity has been assessed also in vivo, in experimental models of brain diseases. Neuropeptide action in the central nervous system has been associated with beneficial effects in neurodegenerative and neuroinflammatory pathological experimental models. This review describes some of the mechanisms of the microglia maladaptive plasticity in vivo and how neuropeptide activity can represent a useful therapeutical target in a variety of human brain pathologies.
Collapse
Affiliation(s)
- Stefano Morara
- Neuroscience Institute (CNR), Via Vanvitelli 32, 20129 Milano, Italy
- Department of BIOMETRA, University of Milano, Via Vanvitelli 32, 20129 Milano, Italy
| | - Anna Maria Colangelo
- Laboratory of Neuroscience “R. Levi-Montalcini”, Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
- SYSBIO Centre of Systems Biology, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
- NeuroMI Milan Center for Neuroscience, University of Milano-Bicocca, 20126 Milano, Italy
| | - Luciano Provini
- Department of BIOMETRA, University of Milano, Via Vanvitelli 32, 20129 Milano, Italy
| |
Collapse
|
21
|
Ran WZ, Dong L, Tang CY, Zhou Y, Sun GY, Liu T, Liu YP, Guan CX. Vasoactive intestinal peptide suppresses macrophage-mediated inflammation by downregulating interleukin-17A expression via PKA- and PKC-dependent pathways. Int J Exp Pathol 2015; 96:269-75. [PMID: 25944684 DOI: 10.1111/iep.12130] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 03/16/2015] [Indexed: 12/13/2022] Open
Abstract
Interleukin (IL)-17A is a pro-inflammatory cytokine that markedly enhances inflammatory responses in the lungs by recruiting neutrophils and interacting with other pro-inflammatory mediators. Reducing the expression of IL-17A could attenuate inflammation in the lungs. However, whether VIP exerts its anti-inflammatory effects by regulating the expression of IL-17A has remained unclear. Here, we show that there is a remarkable increase of IL-17A in bronchoalveolar lavage fluid (BALF) and lung tissue of mice with acute lung injury (ALI). Moreover, lipopolysaccharides (LPS) stimulated elevated expression of IL-17A, which was evident by the enhanced levels of mRNA and protein observed. Furthermore, we also found that VIP inhibited LPS-mediated IL-17A expression in a time- and dose-dependent manner in an in vitro model of ALI and that this process might be mediated via the phosphokinase A (PKA) and phosphokinase C (PKC) pathways. Taken together, our results demonstrated that VIP might be an effective protector during ALI by suppressing IL-17A expression.
Collapse
Affiliation(s)
- Wen-Zhuo Ran
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Liang Dong
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Anesthesiology, People's Hospital of Liuzhou City, Liuzhou, China
| | - Chun-Yan Tang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Yong Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Guo-Ying Sun
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Tian Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Yong-Ping Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Cha-Xiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| |
Collapse
|
22
|
Goursaud S, Schäfer S, Dumont AO, Vergouts M, Gallo A, Desmet N, Deumens R, Hermans E. The anti-inflammatory peptide stearyl-norleucine-VIP delays disease onset and extends survival in a rat model of inherited amyotrophic lateral sclerosis. Exp Neurol 2014; 263:91-101. [PMID: 25311268 DOI: 10.1016/j.expneurol.2014.09.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 09/25/2014] [Accepted: 09/30/2014] [Indexed: 12/13/2022]
Abstract
Vasoactive intestinal peptide (VIP) has potent immune modulatory actions that may influence the course of neurodegenerative disorders associated with chronic inflammation. Here, we show the therapeutic benefits of a modified peptide agonist stearyl-norleucine-VIP (SNV) in a transgenic rat model of amyotrophic lateral sclerosis (mutated superoxide dismutase 1, hSOD1(G93A)). When administered by systemic every-other-day intraperitoneal injections during a period of 80 days before disease, SNV delayed the onset of motor dysfunction by no less than three weeks, while survival was extended by nearly two months. SNV-treated rats showed reduced astro- and microgliosis in the lumbar ventral spinal cord and a significant degree of motor neuron preservation. Throughout the treatment, SNV promoted the expression of the anti-inflammatory cytokine interleukin-10 as well as neurotrophic factors commonly considered as beneficial in amyotrophic lateral sclerosis management (glial derived neuroptrophic factor, insulin like growth factor, brain derived neurotrophic factor). The peptide nearly totally suppressed the expression of tumor necrosis factor-α and repressed the production of the pro-inflammatory mediators interleukin-1β, nitric oxide and of the transcription factor nuclear factor kappa B. Inhibition of tumor necrosis factor-α likely accounted for the observed down-regulation of nuclear factor kappa B that modulates the transcription of genes specifically involved in amyotrophic lateral sclerosis (sod1 and the glutamate transporter slc1a2). In line with this, levels of human superoxide dismutase 1 mRNA and protein were decreased by SNV treatment, while the expression and activity of the glutamate transporter-1 was promoted. Considering the large diversity of influences of this peptide on both clinical features of the disease and associated biochemical markers, we propose that SNV or related peptides may constitute promising candidates for amyotrophic lateral sclerosis treatment.
Collapse
Affiliation(s)
- Stéphanie Goursaud
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Sabrina Schäfer
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Amélie O Dumont
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Maxime Vergouts
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Alessandro Gallo
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Nathalie Desmet
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Ronald Deumens
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Emmanuel Hermans
- Group of Neuropharmacology, Institute of Neuroscience, Université catholique de Louvain, B-1200 Brussels, Belgium.
| |
Collapse
|
23
|
Souza TML, Temerozo JR, Giestal-de-Araujo E, Bou-Habib DC. The effects of neurotrophins and the neuropeptides VIP and PACAP on HIV-1 infection: histories with opposite ends. Neuroimmunomodulation 2014; 21:268-82. [PMID: 24603065 DOI: 10.1159/000357434] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/15/2013] [Indexed: 11/19/2022] Open
Abstract
The nerve growth factor (NGF) and other neurotrophins, and the neuropeptides vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating peptide (PACAP) are largely present in human tissue and can exert modulatory activities on nervous, endocrine and immune system functions. NGF, VIP and PACAP receptors are expressed systemically in organisms, and thus these mediators exhibit pleiotropic natures. The human immunodeficiency virus type 1 (HIV-1), the causal agent of the acquired immunodeficiency syndrome (AIDS), infects immune cells, and its replication is modulated by a number of endogenous factors that interact with HIV-1-infected cells. NGF, VIP and PACAP can also affect HIV-1 virus particle production upon binding to their receptors on the membranes of infected cells, which triggers cell signaling pathways that modify the HIV-1 replicative cycle. These molecules exert opposite effects on HIV-1 replication, as NGF and other neurotrophins enhance and VIP and PACAP reduce viral production in HIV-1-infected human primary macrophages. The understanding of AIDS pathogenesis should consider the mechanisms by which the replication of HIV-1, a pathogen that causes chronic morbidity, is influenced by neurotrophins, VIP and PACAP, i.e. molecules that exert a broad spectrum of physiological activities on the neuroimmunoendocrine axis. In this review, we will present the main effects of these two groups of mediators on the HIV-1 replicative cycle, as well as the mechanisms that underlie their abilities to modulate HIV-1 production in infected immune cells, and discuss the possible repercussion of the cross talk between NGF and both neuropeptides on the pathogenesis of HIV-1 infection.
Collapse
Affiliation(s)
- Thiago Moreno L Souza
- Laboratory of Respiratory Viruses, Oswaldo Cruz Institute/Fiocruz, Rio de Janeiro, Brazil
| | | | | | | |
Collapse
|