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Farhat AM, Weiner AC, Posner C, Kim ZS, Orcutt-Jahns B, Carlson SM, Meyer AS. Modeling cell-specific dynamics and regulation of the common gamma chain cytokines. Cell Rep 2021; 35:109044. [PMID: 33910015 PMCID: PMC8179794 DOI: 10.1016/j.celrep.2021.109044] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/01/2020] [Accepted: 04/06/2021] [Indexed: 12/20/2022] Open
Abstract
The γ-chain receptor dimerizes with complexes of the cytokines interleukin-2 (IL-2), IL-4, IL-7, IL-9, IL-15, and IL-21 and their corresponding "private" receptors. These cytokines have existing uses and future potential as immune therapies because of their ability to regulate the abundance and function of specific immune cell populations. Here, we build a binding reaction model for the ligand-receptor interactions of common γ-chain cytokines, which includes receptor trafficking dynamics, enabling quantitative predictions of cell-type-specific response to natural and engineered cytokines. We then show that tensor factorization is a powerful tool to visualize changes in the input-output behavior of the family across time, cell types, ligands, and concentrations. These results present a more accurate model of ligand response validated across a panel of immune cell types as well as a general approach for generating interpretable guidelines for manipulation of cell-type-specific targeting of engineered ligands.
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Affiliation(s)
- Ali M Farhat
- Department of Bioengineering, Jonsson Comprehensive Cancer Center, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90024, USA
| | - Adam C Weiner
- Department of Bioengineering, Jonsson Comprehensive Cancer Center, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90024, USA
| | | | - Zoe S Kim
- Department of Bioengineering, Jonsson Comprehensive Cancer Center, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90024, USA
| | - Brian Orcutt-Jahns
- Department of Bioengineering, Jonsson Comprehensive Cancer Center, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90024, USA
| | | | - Aaron S Meyer
- Department of Bioengineering, Jonsson Comprehensive Cancer Center, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90024, USA.
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Gonnord P, Angermann BR, Sadtler K, Gombos E, Chappert P, Meier-Schellersheim M, Varma R. A hierarchy of affinities between cytokine receptors and the common gamma chain leads to pathway cross-talk. Sci Signal 2018; 11:11/524/eaal1253. [PMID: 29615515 DOI: 10.1126/scisignal.aal1253] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cytokines belonging to the common gamma chain (γc) family depend on the shared γc receptor subunit for signaling. We report the existence of a fast, cytokine-induced pathway cross-talk acting at the receptor level, resulting from a limiting amount of γc on the surface of T cells. We found that this limited abundance of γc reduced interleukin-4 (IL-4) and IL-21 responses after IL-7 preexposure but not vice versa. Computational modeling combined with quantitative experimental assays indicated that the asymmetric cross-talk resulted from the ability of the "private" IL-7 receptor subunits (IL-7Rα) to bind to many of the γc molecules even before stimulation with cytokine. Upon exposure of T cells to IL-7, the high affinity of the IL-7Rα:IL-7 complex for γc further reduced the amount of free γc in a manner dependent on the concentration of IL-7. Measurements of bioluminescence resonance energy transfer (BRET) between IL-4Rα and γc were reduced when IL-7Rα was overexpressed. Furthermore, in a system expressing IL-7Rα, IL-4Rα, and γc, BRET between IL-4Rα and γc increased after IL-4 binding and decreased when cells were preexposed to IL-7, supporting the assumption that IL-7Rα and the IL-7Rα:IL-7 complex limit the accessibility of γc for other cytokine receptor complexes. We propose that in complex inflammatory environments, such asymmetric cross-talk establishes a hierarchy of cytokine responsiveness.
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Affiliation(s)
- Pauline Gonnord
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bastian R Angermann
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kaitlyn Sadtler
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Erin Gombos
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Pascal Chappert
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Martin Meier-Schellersheim
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Rajat Varma
- Computational Biology Unit, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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Jeong J, Kim WH, Fernandez CP, Kim S, Kim YH, Jang HK, Lillehoj HS, Woo HJ, Min W. Different strategies for producing naturally soluble form of common cytokine receptor γ chain. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 48:13-21. [PMID: 25173813 DOI: 10.1016/j.dci.2014.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/18/2014] [Accepted: 08/19/2014] [Indexed: 06/03/2023]
Abstract
The common cytokine receptor γ chain (γc) plays an essential role in regulating lymphoid homeostasis. In fact, alteration of this gene causes severe immunodeficiency in humans and animals. Although soluble γc (sγc) was identified in the late 1990s, much remains unknown about its production. This study describes various mechanisms underlying the generation of sγc isoforms in different species. Our data demonstrate that mouse γc and the avian ortholog γc-a did not generate sγc. Moreover, two mouse isoforms, CRA-a and mγc-b, encoded by transcripts lacking a transmembrane region by alternative splicing, did not yield sγc. However, in ducks, sγc was produced from a γc-b transcript lacking a transmembrane region by alternative splicing. In chickens, sγc was produced in normal cells and cell lines by proteolytic shedding of the γc-b isoform containing intron 5, which displayed a relatively high probability of proteolytic cleavage of the ectodomain. This shedding was suppressed by leupeptin, serine and cysteine protease inhibitor. Compared to the chicken ortholog γc-a, expression of γc-b mRNA was differentially regulated according to tissue type, developmental stage, and antigen stimulation. These data demonstrate several mechanisms for producing sγc and suggest a potential role for sγc in avian lymphoid homeostatic responses to environmental antigens.
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Affiliation(s)
- Jipseol Jeong
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Woo H Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Cherry P Fernandez
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Yong-Hwan Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Hyung-Kwan Jang
- Departments of Infectious Diseases and Avian Diseases, College of Veterinary Medicine & Korea Zoonosis Research Institute, Chonbuk National University, Jeonju 561-756, South Korea
| | - Hyun S Lillehoj
- Animal Parasitic Diseases Laboratory, Animal and Natural Resources Institute, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD 20705, USA
| | - Hee-Jong Woo
- Laboratory of Immunology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, South Korea
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 660-701, South Korea.
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Capalbo D, Scala MG, Melis D, Minopoli G, Improda N, Palamaro L, Pignata C, Salerno M. Clinical Heterogeneity in two patients with Noonan-like Syndrome associated with the same SHOC2 mutation. Ital J Pediatr 2012; 38:48. [PMID: 22995099 PMCID: PMC4231415 DOI: 10.1186/1824-7288-38-48] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 09/18/2012] [Indexed: 02/04/2023] Open
Abstract
Noonan-like syndrome with loose anagen hair (NS/LAH; OMIM #607721) has been recently related to the invariant c.4A > G missense change in SHOC2. It is characterized by features reminiscent of Noonan syndrome. Ectodermal involvement, short stature associated to growth hormone (GH) deficiency (GHD), and cognitive deficits are common features. We compare in two patients with molecularly confirmed NS/LAH diagnosis, the clinical phenotype and pathogenetic mechanism underlying short stature. In particular, while both the patients exhibited a severe short stature, GH/IGFI axis functional evaluation revealed a different pathogenetic alteration, suggesting in one patient an upstream alteration (typical GHD) and in the other one a peripheral GH insensitivity. Since only a few cases of NS/LAH associated to SHOC2 mutations have been so far described, the complex phenotype of the syndrome and the exact mechanism impairing GH/IGFI axis still remain to be elucidated and studies on larger cohort of subjects are needed to better delineate this syndrome.
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Affiliation(s)
- Donatella Capalbo
- Department of Pediatrics, Federico II University of Naples, Naples, Italy
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Montella S, Maglione M, Giardino G, Di Giorgio A, Palamaro L, Mirra V, Ursini MV, Salerno M, Pignata C, Caffarelli C, Santamaria F. Hyper IgM syndrome presenting as chronic suppurative lung disease. Ital J Pediatr 2012; 38:45. [PMID: 22992442 PMCID: PMC3484017 DOI: 10.1186/1824-7288-38-45] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 09/14/2012] [Indexed: 12/11/2022] Open
Abstract
The Hyper-immunoglobulin M syndromes (HIGM) are a heterogeneous group of genetic disorders resulting in defects of immunoglobulin class switch recombination. Affected patients show humoral immunodeficiency and high susceptibility to opportunistic infections. Elevated serum IgM levels are the hallmark of the disease, even though in few rare cases they may be in the normal range. Hyper IgM is associated with low to undetectable levels of serum IgG, IgA, and IgE. In some cases, alterations in different genes may be identified. Mutations in five genes have so far been associated to the disease, which can be inherited with an X-linked (CD40 ligand, and nuclear factor-kB essential modulator defects) or an autosomal recessive (CD40, activation-induced cytidine deaminase, and uracil-DNA glycosylase mutation) pattern. The patient herein described presented with recurrent upper and lower respiratory infections and evidence of suppurative lung disease at the conventional chest imaging. The presence of low serum IgG and IgA levels, elevated IgM levels, and a marked reduction of in vivo switched memory B cells led to a clinical and functional diagnosis of HIGM although the genetic cause was not identified.
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Affiliation(s)
- Silvia Montella
- Department of Pediatrics, Federico II University, via Pansini 5, Naples, 80131, Italy
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Palamaro L, Giardino G, Santamaria F, Romano R, Fusco A, Montella S, Salerno M, Ursini MV, Pignata C. Interleukin 12 receptor deficiency in a child with recurrent bronchopneumonia and very high IgE levels. Ital J Pediatr 2012; 38:46. [PMID: 22992471 PMCID: PMC3485094 DOI: 10.1186/1824-7288-38-46] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 09/14/2012] [Indexed: 12/13/2022] Open
Abstract
Interleukin-12 (IL-12) is involved in cellular immune responses against intracellular pathogens by promoting the generation of T naive in T helper 1 (Th1) cells and by increasing interferon-gamma (IFN-gamma) production from T and natural killer (NK) cells. A defective induction of a Th1 response may lead to a higher risk of infections, and, in particular, infections due to typical and atypical Mycobacteria. We report on the case of a girl with suffering from recurrent bronchopneumonia associated with very high serum IgE levels, who exhibited a profound impairment of the Th1 generation associated with a novel mutation in the exon 5 of the IL-12R β1 gene (R156H). Our data suggest that in children with severe and recurrent infections, even in the absence of a mycobacterial infection, functional and/or genetic alterations of the molecular mechanisms governing Th1/Th2 homeostasis might be responsible for an atypical immunodeficiency and, therefore, should be investigated in these patients.
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Affiliation(s)
| | | | | | - Rosa Romano
- Department of Pediatrics, “Federico II” University, Naples, Italy
| | - Anna Fusco
- Department of Pediatrics, “Federico II” University, Naples, Italy
| | - Silvia Montella
- Department of Pediatrics, “Federico II” University, Naples, Italy
| | | | | | - Claudio Pignata
- Department of Pediatrics, “Federico II” University, Naples, Italy
- Unit of Immunology, Department of Pediatrics, “Federico II” University, Via S. Pansini 5-80131, Naples, 80127, Italy
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