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Bao C, Abraham SN. Mast cell-sensory neuron crosstalk in allergic diseases. J Allergy Clin Immunol 2024; 153:939-953. [PMID: 38373476 PMCID: PMC10999357 DOI: 10.1016/j.jaci.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 01/12/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
Mast cells (MCs) are tissue-resident immune cells, well-positioned at the host-environment interface for detecting external antigens and playing a critical role in mobilizing innate and adaptive immune responses. Sensory neurons are afferent neurons innervating most areas of the body but especially in the periphery, where they sense external and internal signals and relay information to the brain. The significance of MC-sensory neuron communication is now increasingly becoming recognized, especially because both cell types are in close physical proximity at the host-environment interface and around major organs of the body and produce specific mediators that can activate each other. In this review, we explore the roles of MC-sensory neuron crosstalk in allergic diseases, shedding light on how activated MCs trigger sensory neurons to initiate signaling in pruritus, shock, and potentially abdominal pain in allergy, and how activated sensory neurons regulate MCs in homeostasis and atopic dermatitis associated with contact hypersensitivity and type 2 inflammation. Throughout the review, we also discuss how these 2 sentinel cell types signal each other, potentially resulting in a positive feedback loop that can sustain inflammation. Unraveling the mysteries of MC-sensory neuron crosstalk is likely to unveil their critical roles in various disease conditions and enable the development of new therapeutic approaches to combat these maladies.
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Affiliation(s)
- Chunjing Bao
- Department of Pathology, Duke University Medical Center, Durham, NC
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC; Department of Immunology, Duke University Medical Center, Durham, NC; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC; Department of Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.
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Mencarelli A, Bist P, Choi HW, Khameneh HJ, Mortellaro A, Abraham SN. Anaphylactic degranulation by mast cells requires the mobilization of inflammasome components. Nat Immunol 2024; 25:693-702. [PMID: 38486019 DOI: 10.1038/s41590-024-01788-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/14/2024] [Indexed: 04/11/2024]
Abstract
The inflammasome components NLRP3 and ASC are cytosolic proteins, which upon sensing endotoxins or danger cues, form multimeric complexes to process interleukin (IL)-1β for secretion. Here we found that antigen (Ag)-triggered degranulation of IgE-sensitized mast cells (MCs) was mediated by NLRP3 and ASC. IgE-Ag stimulated NEK7 and Pyk2 kinases in MCs to induce the deposition of NLRP3 and ASC on granules and form a distinct protein complex (granulosome) that chaperoned the granules to the cell surface. MCs deficient in NLRP3 or ASC did not form granulosomes, degranulated poorly in vitro and did not evoke systemic anaphylaxis in mice. IgE-Ag-triggered anaphylaxis was prevented by an NLRP3 inhibitor. In endotoxin-primed MCs, pro-IL-1β was rapidly packaged into granules after IgE-Ag stimulation and processed within granule remnants by proteases after degranulation, causing lethal anaphylaxis in mice. During IgE-Ag-mediated degranulation of endotoxin-primed MCs, granulosomes promoted degranulation, combined with exteriorization and processing of IL-1β, resulting in severe inflammation.
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Affiliation(s)
- Andrea Mencarelli
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
| | - Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Hanif Javanmard Khameneh
- Singapore Immunology Network (SIgN), Agency for Science and Research (A*Star), Singapore, Singapore
- Università della Svizzera italiana (USI), Faculty of Biomedical Sciences, Institute for Research in Biomedicine (IRB), Bellinzona, Switzerland
| | - Alessandra Mortellaro
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.
- Department of Pathology, Duke University Medical Center, Durham, NC, USA.
- Department of Immunology, Duke University Medical Center, Durham, NC, USA.
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC, USA.
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3
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Hayes BW, Choi HW, Rathore APS, Bao C, Shi J, Huh Y, Kim MW, Mencarelli A, Bist P, Ng LG, Shi C, Nho JH, Kim A, Yoon H, Lim D, Hannan JL, Purves JT, Hughes FM, Ji RR, Abraham SN. Recurrent infections drive persistent bladder dysfunction and pain via sensory nerve sprouting and mast cell activity. Sci Immunol 2024; 9:eadi5578. [PMID: 38427717 DOI: 10.1126/sciimmunol.adi5578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 02/07/2024] [Indexed: 03/03/2024]
Abstract
Urinary tract infections (UTIs) account for almost 25% of infections in women. Many are recurrent (rUTI), with patients frequently experiencing chronic pelvic pain and urinary frequency despite clearance of bacteriuria after antibiotics. To elucidate the basis for these bacteria-independent bladder symptoms, we examined the bladders of patients with rUTI. We noticed a notable increase in neuropeptide content in the lamina propria and indications of enhanced nociceptive activity. In mice subjected to rUTI, we observed sensory nerve sprouting that was associated with nerve growth factor (NGF) produced by recruited monocytes and tissue-resident mast cells. Treatment of rUTI mice with an NGF-neutralizing antibody prevented sprouting and alleviated pelvic sensitivity, whereas instillation of native NGF into naïve mice bladders mimicked nerve sprouting and pain behavior. Nerve activation, pain, and urinary frequency were each linked to the presence of proximal mast cells, because mast cell deficiency or treatment with antagonists against receptors of several direct or indirect mast cell products was each effective therapeutically. Thus, our findings suggest that NGF-driven sensory sprouting in the bladder coupled with chronic mast cell activation represents an underlying mechanism driving bacteria-independent pain and voiding defects experienced by patients with rUTI.
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Affiliation(s)
- Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Abhay P S Rathore
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Chunjing Bao
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Jianling Shi
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Yul Huh
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Michael W Kim
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Andrea Mencarelli
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis Singapore 138648, Singapore
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Changming Shi
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Joo Hwan Nho
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Aram Kim
- Department of Urology, Konkuk University Hospital, Konkuk University School of Medicine, Seoul 05029, South Korea
| | - Hana Yoon
- Department of Urology, Ewha Womans University, College of Medicine, Seoul 07804, South Korea
| | - Donghoon Lim
- Department of Urology, Chosun University School of Medicine, Gwangju, South Korea
| | - Johanna L Hannan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - J Todd Purves
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Francis M Hughes
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Ru-Rong Ji
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
- Department of Neurobiology, Duke University Medical Center, Durham, NC, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Department of Immunology, Duke University Medical Center, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
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Sugiyama Y, Kawarai S, Ansai S, Bist P, Abraham SN, Maruo T. Cutaneous anaphylactoid reaction to polyoxyethylene hydrogenated castor oil in dogs. Vet Dermatol 2023. [PMID: 38111025 DOI: 10.1111/vde.13228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 08/07/2023] [Accepted: 12/05/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Polyoxyethylene hydrogenated castor oil (HCO ethoxylates) is a nonionic surfactant used as an excipient for ointments and injections in human and veterinary drugs. Several polyethylene glycol (PEG) derivatives can be obtained depending on the number of moles of ethylene oxide (EO). HCO ethoxylates have the potential to cause anaphylactoid reactions. There is little published information about these types of reactions in dogs. OBJECTIVE To determine the potential for HCO-ethoxylate-containing drugs to cause anaphylactoid reactions in dogs, employing intradermal testing (IDT) with various concentrations of HCO ethoxylates (HCO-25, -40, -60 and -80). ANIMALS Four healthy male laboratory dogs. MATERIALS AND METHODS We performed IDT with drugs containing HCO ethoxylates and HCO ethoxylates alone to determine threshold concentrations. The IDT scores and threshold concentrations were compared. Analysis of skin biopsies from IDT sites was used to measure the percentage of degranulated mast cells. The effect of histamine at IDT sites was investigated by pre-treatment with an antihistamine. RESULTS All HCO-ethoxylate-containing drugs caused a wheal-and-flare reaction. The threshold concentrations (0.001% and 0.00001%) of each HCO-ethoxylate depended on the number of moles of EO (p < 0.05). Mast cell degranulation was enhanced by all HCO ethoxylates. The HCO-60-induced reaction was suppressed by an oral antihistamine. CONCLUSIONS AND CLINICAL RELEVANCE The threshold concentration can serve as a consideration for developing safe new drug formulations and for clinical decision-making around using drugs containing PEG derivatives. IDT is useful to predict the risk of adverse effects. Antihistamines could demonstrate a prophylactic effect.
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Affiliation(s)
- Yukina Sugiyama
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, Sagamihara, Kanagawa, Japan
- Sugiyama Veterinary Clinic, Shizuoka, Japan
| | - Shinpei Kawarai
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, Sagamihara, Kanagawa, Japan
| | - Shinichi Ansai
- Division of Dermatology and Dermatopathology, Nippon Medical School, Musashi Kosugi Hospital, Kawasaki, Kanagawa, Japan
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore City, Singapore
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore City, Singapore
- Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Takuya Maruo
- Laboratory of Veterinary Radiology, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
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Suk G, Kwon DH, Roers A, Abraham SN, Choi HW. Stabilization of activated mast cells by ORAI1 inhibitor suppresses peanut-induced anaphylaxis and acute diarrhea. Pharmacol Res 2023; 196:106887. [PMID: 37574155 DOI: 10.1016/j.phrs.2023.106887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
Mast cell (MC) activation triggered by immunoglobulin E (IgE)-antigen crosslinking involves intracellular Ca2+ influx through the ORAI1 channel, which precedes granule exteriorization and de novo synthesis of mediators. Pharmacologically suppressing MCs via the inhibition of the ORAI1 Ca2+ channel may represent a potential strategy for preventing anaphylaxis. This study demonstrated that peanut-induced anaphylaxis in sensitized mice resulted in significant hypothermia and acute diarrhea. Utilizing the Mcpt5cre-DTA mouse model, we demonstrated that this anaphylactic response was mediated by IgE-antigen-induced MC activation. Prophylactic administration of MC suppressors was an effective means of preventing peanut-induced anaphylaxis. In addition, we observed the potent efficacy of an ORAI1 inhibitor in suppressing the FcεRI-mediated response of murine or human MCs, even when administered concurrently or post-allergen exposure. Mechanistically, the ORAI1 inhibitor was found to prevent the association of Synaptotagmin-2 with the SNARE complex. In an in vivo mouse model of peanut-induced anaphylaxis, the administration of the ORAI1 inhibitor after allergen challenge effectively suppressed allergic acute diarrhea and ameliorated anaphylaxis. Therefore, pharmacological intervention of ORAI1 channel inhibition in MCs represents a promising therapeutic avenue for the treatment of peanut-induced anaphylaxis and acute diarrhea in vivo.
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Affiliation(s)
- Gyeongseo Suk
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Do Hoon Kwon
- Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA
| | - Axel Roers
- Institute for Immunology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden 01069, Germany
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul 02841, South Korea.
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Naskar M, Parekh VP, Abraham MA, Alibasic Z, Kim MJ, Suk G, Noh JH, Ko KY, Lee J, Kim C, Yoon H, Abraham SN, Choi HW. α-Hemolysin promotes uropathogenic E. coli persistence in Bladder epithelial cells Via abrogating bacteria-harboring lysosome acidification. PLoS Pathog 2023; 19:e1011388. [PMID: 37167325 DOI: 10.1371/journal.ppat.1011388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 05/23/2023] [Accepted: 04/25/2023] [Indexed: 05/13/2023] Open
Abstract
There is a growing consensus that a significant proportion of recurrent urinary tract infections are linked to the persistence of uropathogens within the urinary tract and their re-emergence upon the conclusion of antibiotic treatment. Studies in mice and human have revealed that uropathogenic Escherichia coli (UPEC) can persist in bladder epithelial cells (BECs) even after the apparent resolution of the infection. Here, we found that, following the entry of UPEC into RAB27b+ fusiform vesicles in BECs, some bacteria escaped into the cytoplasmic compartment via a mechanism involving hemolysin A (HlyA). However, these UPEC were immediately recaptured within LC3A/B+ autophagosomes that matured into LAMP1+ autolysosomes. Thereafter, HlyA+ UPEC-containing lysosomes failed to acidify, which is an essential step for bacterial elimination. This lack of acidification was related to the inability of bacteria-harboring compartments to recruit V-ATPase proton pumps, which was attributed to the defragmentation of cytosolic microtubules by HlyA. The persistence of UPEC within LAMP1+ compartments in BECs appears to be directly linked to HlyA. Thus, through intravesicular instillation of microtubule stabilizer, this host defense response can be co-opted to reduce intracellular bacterial burden following UTIs in the bladder potentially preventing recurrence.
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Affiliation(s)
- Manisha Naskar
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Viraj P Parekh
- Department of Biochemistry, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Mathew A Abraham
- Department of Pathology, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Zehra Alibasic
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Min Jung Kim
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Gyeongseo Suk
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Joo Hwan Noh
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Kwan Young Ko
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Joonha Lee
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Chungho Kim
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Hana Yoon
- Department of Urology, Ewha Womans University, College of medicine, Seoul, South Korea
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, United States of America
- Molecular Genetics & Microbiology, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul, South Korea
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Baran J, Sobiepanek A, Mazurkiewicz-Pisarek A, Rogalska M, Gryciuk A, Kuryk L, Abraham SN, Staniszewska M. Mast Cells as a Target-A Comprehensive Review of Recent Therapeutic Approaches. Cells 2023; 12:cells12081187. [PMID: 37190096 DOI: 10.3390/cells12081187] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/04/2023] [Accepted: 04/16/2023] [Indexed: 05/17/2023] Open
Abstract
Mast cells (MCs) are the immune cells distributed throughout nearly all tissues, mainly in the skin, near blood vessels and lymph vessels, nerves, lungs, and the intestines. Although MCs are essential to the healthy immune response, their overactivity and pathological states can lead to numerous health hazards. The side effect of mast cell activity is usually caused by degranulation. It can be triggered by immunological factors, such as immunoglobulins, lymphocytes, or antigen-antibody complexes, and non-immune factors, such as radiation and pathogens. An intensive reaction of mast cells can even lead to anaphylaxis, one of the most life-threatening allergic reactions. What is more, mast cells play a role in the tumor microenvironment by modulating various events of tumor biology, such as cell proliferation and survival, angiogenesis, invasiveness, and metastasis. The mechanisms of the mast cell actions are still poorly understood, making it difficult to develop therapies for their pathological condition. This review focuses on the possible therapies targeting mast cell degranulation, anaphylaxis, and MC-derived tumors.
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Affiliation(s)
- Joanna Baran
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Anna Sobiepanek
- Faculty of Chemistry, Warsaw University of Technology, 00-664 Warsaw, Poland
| | - Anna Mazurkiewicz-Pisarek
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Marta Rogalska
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Aleksander Gryciuk
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Lukasz Kuryk
- Department of Virology, National Institute of Public Health NIH-NRI, 00-791 Warsaw, Poland
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Monika Staniszewska
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
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Bao C, Chen O, Sheng H, Zhang J, Luo Y, Hayes BW, Liang H, Liedtke W, Ji RR, Abraham SN. A mast cell-thermoregulatory neuron circuit axis regulates hypothermia in anaphylaxis. Sci Immunol 2023; 8:eadc9417. [PMID: 36930731 DOI: 10.1126/sciimmunol.adc9417] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
IgE-mediated anaphylaxis is an acute life-threatening systemic reaction to allergens, including certain foods and venoms. Anaphylaxis is triggered when blood-borne allergens activate IgE-bound perivascular mast cells (MCs) throughout the body, causing an extensive systemic release of MC mediators. Through precipitating vasodilatation and vascular leakage, these mediators are believed to trigger a sharp drop in blood pressure in humans and in core body temperature in animals. We report that the IgE/MC-mediated drop in body temperature in mice associated with anaphylaxis also requires the body's thermoregulatory neural circuit. This circuit is activated when granule-borne chymase from MCs is deposited on proximal TRPV1+ sensory neurons and stimulates them via protease-activated receptor-1. This triggers the activation of the body's thermoregulatory neural network, which rapidly attenuates brown adipose tissue thermogenesis to cause hypothermia. Mice deficient in either chymase or TRPV1 exhibited limited IgE-mediated anaphylaxis, and, in wild-type mice, anaphylaxis could be recapitulated simply by systemically activating TRPV1+ sensory neurons. Thus, in addition to their well-known effects on the vasculature, MC products, especially chymase, promote IgE-mediated anaphylaxis by activating the thermoregulatory neural circuit.
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Affiliation(s)
- Chunjing Bao
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ouyang Chen
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Huaxin Sheng
- Multidisciplinary Neuroprotection Laboratories, Center of Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Jeffrey Zhang
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Yikai Luo
- Graduate Program in Quantitative and Computational Biosciences, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Han Liang
- Graduate Program in Quantitative and Computational Biosciences, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wolfgang Liedtke
- Department of Neurology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York NY 10010, USA
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham NC 27710, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
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Hendy DA, Johnson-Weaver BT, Batty CJ, Bachelder EM, Abraham SN, Staats HF, Ainslie KM. Delivery of small molecule mast cell activators for West Nile Virus vaccination using acetalated dextran microparticles. Int J Pharm 2023; 634:122658. [PMID: 36731641 PMCID: PMC9975031 DOI: 10.1016/j.ijpharm.2023.122658] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Recently, there has been increasing interest in the activation of mast cells to promote vaccine efficacy. Several mast cell activating (MCA) compounds have been reported such as M7 and Compound 48/80 (C48/80). While these MCAs have been proven to be efficacious vaccine adjuvants, their translatability is limited by batch-to-batch variability, challenging large-scale manufacturing, and poor in vivo stability for the M7 peptide. Due to this, high throughput screening was performed to identify small molecule MCAs. Several potent MCAs were identified via this screening, but the in vivo translatability of the compounds was limited due to their poor aqueous solubility. To enhance the delivery of these MCAs we encapsulated them in acetalated dextran (Ace-DEX) microparticles (MPs). We have previously utilized Ace-DEX MPs for vaccine delivery due to their passive targeting to phagocytic cells, acid sensitivity, and tunable degradation. Four different MCA loaded MPs were combined with West Nile Virus Envelope III protein (EDIII) and their vaccine adjuvant activities were compared in vivo. MPs containing the small molecule MCA ST101036 produced the highest anti-EDIII IgG titers of all the MCAs tested. Further, ST101036 MPs produced higher titers than ST101036 formulated with PEG as a cosolvent which highlights the benefit of Ace-DEX MPs over a conventional formulation technique. Finally, in a mouse model of West Nile Virus infection ST101036 MPs produced similar survival to soluble M7 (80-90%). Overall, these data show that ST101036 MPs produce a robust antibody response against EDIII and survival emphasizing the benefits of using Ace-DEX as a delivery platform for the poorly soluble ST101036.
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Affiliation(s)
- Dylan A Hendy
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | | | - Cole J Batty
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | | | - Herman F Staats
- Department of Pathology, Duke University, USA; Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA; Department of Microbiology and Immunology, UNC School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
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10
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Ontiveros-Padilla L, Batty CJ, Hendy DA, Pena ES, Roque JA, Stiepel RT, Carlock MA, Simpson SR, Ross TM, Abraham SN, Staats HF, Bachelder EM, Ainslie KM. Development of a broadly active influenza intranasal vaccine adjuvanted with self-assembled particles composed of mastoparan-7 and CpG. Front Immunol 2023; 14:1103765. [PMID: 37033992 PMCID: PMC10081679 DOI: 10.3389/fimmu.2023.1103765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/27/2023] [Indexed: 04/11/2023] Open
Abstract
Currently licensed vaccine adjuvants offer limited mucosal immunity, which is needed to better combat respiratory infections such as influenza. Mast cells (MCs) are emerging as a target for a new class of mucosal vaccine adjuvants. Here, we developed and characterized a nanoparticulate adjuvant composed of an MC activator [mastoparan-7 (M7)] and a TLR ligand (CpG). This novel nanoparticle (NP) adjuvant was co-formulated with a computationally optimized broadly reactive antigen (COBRA) for hemagglutinin (HA), which is broadly reactive against influenza strains. M7 was combined at different ratios with CpG and tested for in vitro immune responses and cytotoxicity. We observed significantly higher cytokine production in dendritic cells and MCs with the lowest cytotoxicity at a charge-neutralizing ratio of nitrogen/phosphate = 1 for M7 and CpG. This combination formed spherical NPs approximately 200 nm in diameter with self-assembling capacity. Mice were vaccinated intranasally with COBRA HA and M7-CpG NPs in a prime-boost-boost schedule. Vaccinated mice had significantly higher antigen-specific antibody responses (IgG and IgA) in serum and mucosa compared with controls. Splenocytes from vaccinated mice had significantly increased cytokine production upon antigen recall and the presence of central and effector memory T cells in draining lymph nodes. Finally, co-immunization with NPs and COBRA HA induced influenza H3N2-specific HA inhibition antibody titers across multiple strains and partially protected mice from a challenge against an H3N2 virus. These results illustrate that the M7-CpG NP adjuvant combination can induce a protective immune response with a broadly reactive influenza antigen via mucosal vaccination.
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Affiliation(s)
- Luis Ontiveros-Padilla
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Cole J. Batty
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Dylan A. Hendy
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Erik S. Pena
- Department of Biomedical Engineering, NC State/UNC, Chapel Hill, NC, United States
| | - John A. Roque
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Rebeca T. Stiepel
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Michael A. Carlock
- Florida Research and Innovation Center, Port Saint, Cleveland Clinic Florida, Port St. Lucie, FL, United States
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
| | - Sean R. Simpson
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Ted M. Ross
- Florida Research and Innovation Center, Port Saint, Cleveland Clinic Florida, Port St. Lucie, FL, United States
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
| | - Soman N. Abraham
- Departments of Pathology, Molecular Genetics and Microbiology and Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Herman F. Staats
- Department of Pathology, School of Medicine, Duke University, Durham, NC, United States
- Duke Human Vaccines Institute, School of Medicine, Duke University, Durham, NC, United States
| | - Eric M. Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kristy M. Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Department of Biomedical Engineering, NC State/UNC, Chapel Hill, NC, United States
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- *Correspondence: Kristy M. Ainslie,
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11
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Iskarpatyoti JA, Shi J, Abraham MA, Rathore APS, Miao Y, Abraham SN. Mast cell regranulation requires a metabolic switch involving mTORC1 and a glucose-6-phosphate transporter. Cell Rep 2022; 40:111346. [PMID: 36170813 DOI: 10.1016/j.celrep.2022.111346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 06/16/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Mast cells (MCs) are granulated cells implicated in inflammatory disorders because of their capacity to degranulate, releasing prestored proinflammatory mediators. As MCs have the unique capacity to reform granules following degranulation in vitro, their potential to regranulate in vivo is linked to their pathogenesis. It is not known what factors regulate regranulation, let alone if regranulation occurs in vivo. We report that mice can undergo multiple bouts of MC regranulation following successive anaphylactic reactions. mTORC1, a nutrient sensor that activates protein and lipid synthesis, is necessary for regranulation. mTORC1 activity is regulated by a glucose-6-phosphate transporter, Slc37a2, which increases intracellular glucose-6-phosphate and ATP during regranulation, two upstream signals of mTOR. Additionally, Slc37a2 concentrates extracellular metabolites within endosomes, which are trafficked into nascent granules. Thus, the metabolic switch associated with MC regranulation is mediated by the interactions of a cellular metabolic sensor and a transporter of extracellular metabolites into MC granules.
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Affiliation(s)
- Jason A Iskarpatyoti
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Jianling Shi
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Mathew A Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Abhay P S Rathore
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Yuxuan Miao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - Soman N Abraham
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore.
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12
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Song CH, Kim YH, Naskar M, Hayes BW, Abraham MA, Noh JH, Suk G, Kim MJ, Cho KS, Shin M, Lee EJ, Abraham SN, Choi HW. Lactobacillus crispatus Limits Bladder Uropathogenic E. coli Infection by Triggering a Host Type I Interferon Response. Proc Natl Acad Sci U S A 2022; 119:e2117904119. [PMID: 35939684 PMCID: PMC9388105 DOI: 10.1073/pnas.2117904119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Many urinary tract infections (UTIs) are recurrent because uropathogens persist within the bladder epithelial cells (BECs) for extended periods between bouts of infection. Because persistent uropathogens are intracellular, they are often refractive to antibiotic treatment. The recent discovery of endogenous Lactobacillus spp. in the bladders of healthy humans raised the question of whether these endogenous bacteria directly or indirectly impact intracellular bacterial burden in the bladder. Here, we report that in contrast to healthy women, female patients experiencing recurrent UTIs have a bladder population of Lactobacilli that is markedly reduced. Exposing infected human BECs to L. crispatus in vitro markedly reduced the intracellular uropathogenic Escherichia coli (UPEC) load. The adherence of Lactobacilli to BECs was found to result in increased type I interferon (IFN) production, which in turn enhanced the expression of cathepsin D within lysosomes harboring UPECs. This lysosomal cathepsin D-mediated UPEC killing was diminished in germ-free mice and type I IFN receptor-deficient mice. Secreted metabolites of L. crispatus seemed to be responsible for the increased expression of type I IFN in human BECs. Intravesicular administration of Lactobacilli into UPEC-infected murine bladders markedly reduced their intracellular bacterial load suggesting that components of the endogenous microflora can have therapeutic effects against UTIs.
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Affiliation(s)
- Chang Hyun Song
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Young Ho Kim
- Department of Urology, Soonchunhyang University Bucheon Hospital, Bucheon-si, 14584, South Korea
| | - Manisha Naskar
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC 27710
| | - Mathew A Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710
| | - Joo Hwan Noh
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Gyeongseo Suk
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Min Jung Kim
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Kyu Sang Cho
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Minhye Shin
- Department of Microbiology, Inha University School of Medicine, Incheon, 22212, South Korea
| | - Eun-Jin Lee
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710
- Department of Immunology, Duke University Medical Center, Durham, NC 27710
- Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul, 02841, South Korea
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13
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Chacón-Salinas R, Di Nardo A, Abraham SN. Editorial: Mast Cells: Bridging Host-Microorganism Interactions. Front Immunol 2022; 13:827375. [PMID: 35173737 PMCID: PMC8841744 DOI: 10.3389/fimmu.2022.827375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/13/2022] [Indexed: 12/31/2022] Open
Affiliation(s)
- Rommel Chacón-Salinas
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, (ENCB-IPN), Mexico City, Mexico,*Correspondence: Rommel Chacón-Salinas, ; Anna Di Nardo, ; Soman N. Abraham,
| | - Anna Di Nardo
- Department of Dermatology, University of California San Diego, San Diego, CA, United States,*Correspondence: Rommel Chacón-Salinas, ; Anna Di Nardo, ; Soman N. Abraham,
| | - Soman N. Abraham
- Pathology Department, School of Medicine, Duke University, Durham, NC, United States,Department of Immunology, School of Medicine, Duke University, Durham, NC, United States,Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, United States,*Correspondence: Rommel Chacón-Salinas, ; Anna Di Nardo, ; Soman N. Abraham,
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14
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Cao C, Kang HJ, Singh I, Chen H, Zhang C, Ye W, Hayes BW, Liu J, Gumpper RH, Bender BJ, Slocum ST, Krumm BE, Lansu K, McCorvy JD, Kroeze WK, English JG, DiBerto JF, Olsen RHJ, Huang XP, Zhang S, Liu Y, Kim K, Karpiak J, Jan LY, Abraham SN, Jin J, Shoichet BK, Fay JF, Roth BL. Structure, function and pharmacology of human itch GPCRs. Nature 2021; 600:170-175. [PMID: 34789874 PMCID: PMC9150435 DOI: 10.1038/s41586-021-04126-6] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/08/2021] [Indexed: 11/09/2022]
Abstract
The MRGPRX family of receptors (MRGPRX1-4) is a family of mas-related G-protein-coupled receptors that have evolved relatively recently1. Of these, MRGPRX2 and MRGPRX4 are key physiological and pathological mediators of itch and related mast cell-mediated hypersensitivity reactions2-5. MRGPRX2 couples to both Gi and Gq in mast cells6. Here we describe agonist-stabilized structures of MRGPRX2 coupled to Gi1 and Gq in ternary complexes with the endogenous peptide cortistatin-14 and with a synthetic agonist probe, respectively, and the development of potent antagonist probes for MRGPRX2. We also describe a specific MRGPRX4 agonist and the structure of this agonist in a complex with MRGPRX4 and Gq. Together, these findings should accelerate the structure-guided discovery of therapeutic agents for pain, itch and mast cell-mediated hypersensitivity.
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MESH Headings
- Cryoelectron Microscopy
- Drug Inverse Agonism
- GTP-Binding Protein alpha Subunits, Gi-Go/chemistry
- GTP-Binding Protein alpha Subunits, Gi-Go/metabolism
- GTP-Binding Protein alpha Subunits, Gi-Go/ultrastructure
- GTP-Binding Protein alpha Subunits, Gq-G11/chemistry
- GTP-Binding Protein alpha Subunits, Gq-G11/metabolism
- GTP-Binding Protein alpha Subunits, Gq-G11/ultrastructure
- Humans
- Models, Molecular
- Nerve Tissue Proteins/antagonists & inhibitors
- Nerve Tissue Proteins/chemistry
- Nerve Tissue Proteins/metabolism
- Nerve Tissue Proteins/ultrastructure
- Pruritus/metabolism
- Receptors, G-Protein-Coupled/agonists
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/chemistry
- Receptors, G-Protein-Coupled/metabolism
- Receptors, G-Protein-Coupled/ultrastructure
- Receptors, Neuropeptide/antagonists & inhibitors
- Receptors, Neuropeptide/chemistry
- Receptors, Neuropeptide/metabolism
- Receptors, Neuropeptide/ultrastructure
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Affiliation(s)
- Can Cao
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Hye Jin Kang
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Isha Singh
- Department of Pharmaceutical Sciences, University of California San Francisco, School of Medicine, San Francisco, CA, USA
| | - He Chen
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chengwei Zhang
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Wenlei Ye
- Department of Physiology, University of California, San Francisco, San Francisco, CA, USA
| | - Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Jing Liu
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ryan H Gumpper
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Brian J Bender
- Department of Pharmaceutical Sciences, University of California San Francisco, School of Medicine, San Francisco, CA, USA
| | - Samuel T Slocum
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Brian E Krumm
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Katherine Lansu
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - John D McCorvy
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Wesley K Kroeze
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Justin G English
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jeffrey F DiBerto
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Reid H J Olsen
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Xi-Ping Huang
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Shicheng Zhang
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Yongfeng Liu
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Kuglae Kim
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Joel Karpiak
- Department of Pharmaceutical Sciences, University of California San Francisco, School of Medicine, San Francisco, CA, USA
| | - Lily Y Jan
- Department of Physiology, University of California, San Francisco, San Francisco, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Brian K Shoichet
- Department of Pharmaceutical Sciences, University of California San Francisco, School of Medicine, San Francisco, CA, USA.
| | - Jonathan F Fay
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA.
| | - Bryan L Roth
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA.
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15
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Johnson-Weaver BT, Choi HW, Yang H, Granek JA, Chan C, Abraham SN, Staats HF. Nasal Immunization With Small Molecule Mast Cell Activators Enhance Immunity to Co-Administered Subunit Immunogens. Front Immunol 2021; 12:730346. [PMID: 34566991 PMCID: PMC8461742 DOI: 10.3389/fimmu.2021.730346] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/23/2021] [Indexed: 01/02/2023] Open
Abstract
Mast cell activators are a novel class of mucosal vaccine adjuvants. The polymeric compound, Compound 48/80 (C48/80), and cationic peptide, Mastoparan 7 (M7) are mast cell activators that provide adjuvant activity when administered by the nasal route. However, small molecule mast cell activators may be a more cost-efficient adjuvant alternative that is easily synthesized with high purity compared to M7 or C48/80. To identify novel mast cell activating compounds that could be evaluated for mucosal vaccine adjuvant activity, we employed high-throughput screening to assess over 55,000 small molecules for mast cell degranulation activity. Fifteen mast cell activating compounds were down-selected to five compounds based on in vitro immune activation activities including cytokine production and cellular cytotoxicity, synthesis feasibility, and selection for functional diversity. These small molecule mast cell activators were evaluated for in vivo adjuvant activity and induction of protective immunity against West Nile Virus infection in BALB/c mice when combined with West Nile Virus envelope domain III (EDIII) protein in a nasal vaccine. We found that three of the five mast cell activators, ST101036, ST048871, and R529877, evoked high levels of EDIII-specific antibody and conferred comparable levels of protection against WNV challenge. The level of protection provided by these small molecule mast cell activators was comparable to the protection evoked by M7 (67%) but markedly higher than the levels seen with mice immunized with EDIII alone (no adjuvant 33%). Thus, novel small molecule mast cell activators identified by high throughput screening are as efficacious as previously described mast cell activators when used as nasal vaccine adjuvants and represent next-generation mast cell activators for evaluation in mucosal vaccine studies.
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Affiliation(s)
| | - Hae Woong Choi
- Pathology Department, School of Medicine, Duke University, Durham, NC, United States
| | - Hang Yang
- Biostatistics and Bioinformatics Department, School of Medicine, Duke University, Durham, NC, United States
| | - Josh A. Granek
- Biostatistics and Bioinformatics Department, School of Medicine, Duke University, Durham, NC, United States
| | - Cliburn Chan
- Biostatistics and Bioinformatics Department, School of Medicine, Duke University, Durham, NC, United States
| | - Soman N. Abraham
- Pathology Department, School of Medicine, Duke University, Durham, NC, United States
- Department of Immunology, School of Medicine, Duke University, Durham, NC, United States
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, United States
| | - Herman F. Staats
- Pathology Department, School of Medicine, Duke University, Durham, NC, United States
- Department of Immunology, School of Medicine, Duke University, Durham, NC, United States
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
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16
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Abstract
T lymphocytes play important roles in the skin and mucosal surfaces such as the gut and lung. Until recently the contributions of T cells to mammalian bladder immunity were largely unknown. With newer techniques, including single-cell RNA sequencing and reporter mice, an understanding is emerging of T cell roles in bladder diseases (bacterial infections, bladder cancer, chronic inflammation). In these pathologies, many bladder T cell responses can be harmful to the host through suboptimal clearance of bacteria or cancer cells, or by modulating autoinflammation. Recent findings suggest that T cell behavior might be influenced by resident T cell interactions with the bladder microbiota and other immunostimulants. Thus, regulating bladder T cell functions could emerge as a putative immunotherapy to treat some bladder diseases.
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Affiliation(s)
- Jianxuan Wu
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore.
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17
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Syenina A, Saron WAA, Jagaraj CJ, Bibi S, Arock M, Gubler DJ, Rathore APS, Abraham SN, St. John AL. Th1-Polarized, Dengue Virus-Activated Human Mast Cells Induce Endothelial Transcriptional Activation and Permeability. Viruses 2020; 12:v12121379. [PMID: 33276578 PMCID: PMC7761533 DOI: 10.3390/v12121379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 11/27/2022] Open
Abstract
Dengue virus (DENV), an arbovirus, strongly activates mast cells (MCs), which are key immune cells for pathogen immune surveillance. In animal models, MCs promote clearance of local peripheral DENV infections but, conversely, also promote pathological vascular leakage when widely activated during systemic DENV infection. Since DENV is a human pathogen, we sought to ascertain whether a similar phenomenon could occur in humans by characterizing the products released by human MCs (huMCs) upon direct (antibody-independent) DENV exposure, using the phenotypically mature huMC line, ROSA. DENV did not productively infect huMCs but prompted huMC release of proteases and eicosanoids and induced a Th1-polarized transcriptional profile. In co-culture and trans-well systems, huMC products activated human microvascular endothelial cells, involving transcription of vasoactive mediators and increased monolayer permeability. This permeability was blocked by MC-stabilizing drugs, or limited by drugs targeting certain MC products. Thus, MC stabilizers are a viable strategy to limit MC-promoted vascular leakage during DENV infection in humans.
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Affiliation(s)
- Ayesa Syenina
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
| | - Wilfried A. A. Saron
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
| | - Cyril J. Jagaraj
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
| | - Siham Bibi
- Laboratory of Molecular and Cellular Oncology, LBPA CNRS UMR8113, Ecole Normale Supérieure de Cachan, 94235 Cachan, France; (S.B.); (M.A.)
| | - Michel Arock
- Laboratory of Molecular and Cellular Oncology, LBPA CNRS UMR8113, Ecole Normale Supérieure de Cachan, 94235 Cachan, France; (S.B.); (M.A.)
- Laboratory of Hematology, Pitié-Salpêtrière Hospital, Pierre et Marie Curie University, 75005 Paris, France
| | - Duane J. Gubler
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
| | - Abhay P. S. Rathore
- Pathology Department, Duke University Medical Center, Durham, NC 27710, USA;
| | - Soman N. Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
- Pathology Department, Duke University Medical Center, Durham, NC 27710, USA;
- Immunology Department, Duke University Medical Center, Durham, NC 27710, USA
- Molecular Genetics and Microbiology Departments, Duke University Medical Center, Durham, NC 27710, USA
| | - Ashley L. St. John
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; (A.S.); (W.A.A.S.); (C.J.J.); (D.J.G.); (S.N.A.)
- Pathology Department, Duke University Medical Center, Durham, NC 27710, USA;
- Department of Microbiology and Immunology, National University of Singapore, Singapore 117545, Singapore
- SingHealth Duke-NUS Global Health Institute, Singapore 169857, Singapore
- Correspondence:
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18
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Wang J, Wu J, Moris D, Hayes B, Abraham SN, Cendales LC. Introducing a novel experimental model of bladder transplantation in mice. Am J Transplant 2020; 20:3558-3566. [PMID: 32282990 DOI: 10.1111/ajt.15912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 03/24/2020] [Accepted: 03/31/2020] [Indexed: 01/25/2023]
Abstract
Bladder dysfunction is a common clinical problem attributed to various conditions such as posterior urethral valves, neurogenic bladder, ureteral ectopy, or bladder exstrophy. Currently, the main therapeutic option for these dysfunctions is neobladder reconstruction with gastrointestinal tract segments. However, the latter was associated with significant long-term complications. To provide a new candidate of possible surgical solution for bladder dysfunction, we propose a novel orthotropic mouse bladder transplantation model. The donor bladder with abdominal aorta and inferior vena cava was isolated and orthotopically sutured to the recipient, whose bladder above the ureteral opening level was removed. The recipient mice showed more than 80% 6-month survival rate and comparable body weight to control mice. At both 1 month and 6 months posttransplant, the urine voiding behavior of recipient mice and control mice was monitored by cystometry. We found that the recipient mice displayed similar bladder pressure and urine secretion ability compared to control mice especially at 6 months posttransplant. Similarity of bladder structure between recipient and control mice was confirmed by histology. As a proof of principle, we tested our model in an allogeneic setting. Early acute rejection was noted after day 5 that was histologically more profound by day 10 posttransplant. These results indicate that the mouse bladder transplant is able to provide normal bladder function.
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Affiliation(s)
- Jun Wang
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jianxuan Wu
- Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Dimitrios Moris
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Byron Hayes
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Soman N Abraham
- Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA.,Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA.,Department of Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Linda C Cendales
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA
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19
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Wu J, Hayes BW, Phoenix C, Macias GS, Miao Y, Choi HW, Hughes FM, Todd Purves J, Lee Reinhardt R, Abraham SN. A highly polarized T H2 bladder response to infection promotes epithelial repair at the expense of preventing new infections. Nat Immunol 2020; 21:671-683. [PMID: 32424366 PMCID: PMC7480508 DOI: 10.1038/s41590-020-0688-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Urinary tract infections (UTIs) typically evoke prompt and vigorous innate bladder immune responses, including extensive exfoliation of the epithelium. To explain the basis for the extraordinarily high recurrence rates of UTIs, we examined adaptive immune responses in mouse bladders. We found that, following each bladder infection, a highly T helper type 2 (TH2)-skewed immune response directed at bladder re-epithelialization is observed, with limited capacity to clear infection. This response is initiated by a distinct subset of CD301b+OX40L+ dendritic cells, which migrate into the bladder epithelium after infection before trafficking to lymph nodes to preferentially activate TH2 cells. The bladder epithelial repair response is cumulative and aberrant as, after multiple infections, the epithelium was markedly thickened and bladder capacity was reduced relative to controls. Thus, recurrence of UTIs and associated bladder dysfunction are the outcome of the preferential focus of the adaptive immune response on epithelial repair at the expense of bacterial clearance.
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Affiliation(s)
- Jianxuan Wu
- Department of Immunology, Duke University Medical Center, Durham, NC, USA
| | - Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Cassandra Phoenix
- Department of Science, North Carolina School of Science and Mathematics, Durham, NC, USA
| | | | - Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC, USA
- Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, Howard Hughes Medical Institute, The Rockefeller University, New York, NY, USA
| | - Hae Woong Choi
- Department of Life Sciences, Korea University, Seoul, South Korea
| | - Francis M Hughes
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - J Todd Purves
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - R Lee Reinhardt
- Department of Biomedical Research, National Jewish Health, Denver, CO, USA
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Soman N Abraham
- Department of Immunology, Duke University Medical Center, Durham, NC, USA.
- Department of Pathology, Duke University Medical Center, Durham, NC, USA.
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC, USA.
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.
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20
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Karhausen J, Choi HW, Maddipati KR, Mathew JP, Ma Q, Boulaftali Y, Lee RH, Bergmeier W, Abraham SN. Platelets trigger perivascular mast cell degranulation to cause inflammatory responses and tissue injury. Sci Adv 2020; 6:eaay6314. [PMID: 32206714 PMCID: PMC7080499 DOI: 10.1126/sciadv.aay6314] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/20/2019] [Indexed: 06/08/2023]
Abstract
Platelet responses have been associated with end-organ injury and mortality following complex insults such as cardiac surgery, but how platelets contribute to these pathologies remains unclear. Our studies originated from the observation of microvascular platelet retention in a rat cardiac surgery model. Ensuing work supported the proximity of platelet aggregates with perivascular mast cells (MCs) and demonstrated that platelet activation triggered systemic MC activation. We then identified platelet activating factor (PAF) as the platelet-derived mediator stimulating MCs and, using chimeric animals with platelets defective in PAF generation or MCs lacking PAF receptor, defined the role of this platelet-MC interaction for vascular leakage, shock, and tissue inflammation. In application of these findings, we demonstrated that inhibition of platelet activation in modeled cardiac surgery blunted MC-dependent inflammation and tissue injury. Together, our work identifies a previously undefined mechanism of inflammatory augmentation, in which platelets trigger local and systemic responses through activation of perivascular MCs.
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Affiliation(s)
- Jörn Karhausen
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Department of Life Sciences, Korea University, Seoul 02841, South Korea
| | | | - Joseph P. Mathew
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Qing Ma
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Yacine Boulaftali
- Université Paris Diderot, Sorbonne Paris Cité, Laboratory of Vascular Translational Science, U1148 Institute National de la Santé et de la Recherche Medicale (INSERM), Paris, France
| | - Robert Hugh Lee
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, USA
| | - Wolfgang Bergmeier
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, USA
- UNC Center for Blood Research, University of North Carolina, Chapel Hill, NC, USA
| | - Soman N. Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Department of Immunology, Duke University Medical Center, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
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21
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St. John AL, Choi HW, Walker QD, Blough B, Kuhn CM, Abraham SN, Staats HF. Novel mucosal adjuvant, mastoparan-7, improves cocaine vaccine efficacy. NPJ Vaccines 2020; 5:12. [PMID: 32047657 PMCID: PMC7002721 DOI: 10.1038/s41541-020-0161-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/14/2020] [Indexed: 12/29/2022] Open
Abstract
Cocaine is one of the most potent and addictive psychostimulants known and there are no available pharmacotherapies to treat cocaine addiction. Here we describe a novel cocaine vaccine employing the mucosal adjuvant and mast cell-activating oligopeptide, mastoparan-7 (M7), to achieve optimal IgA antibody responses in mucosal secretions and effective induction of humoral immunity using a short immunization protocol. This formulation, using a hapten-carrier system to deliver cocaine as antigen, also reduced cocaine penetration of the blood brain barrier and protected mice from its psychoactive effects by reducing cocaine-induced locomotion. Surprisingly, the magnitude of cocaine-specific antibody titers induced by each adjuvant was not the major determinant of functional protection from cocaine challenge. A side-by-side comparison of the two haptens, cocaine and its analog GNC demonstrated that cocaine haptenation resulted in superior functional protection when used in combination with the novel mucosal adjuvant, M7. These results provide a new potential strategy for combatting cocaine addiction through mucosal vaccination.
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Affiliation(s)
- Ashley L. St. John
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, 169857 Singapore
- Department of Pathology, Duke University Medical Center, Durham, NC 27710 USA
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228 Singapore
- SingHealth Duke-NUS Global Health Institute, Singapore, 168753 Singapore
| | - Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC 27710 USA
- Present Address: Korea University, Division of Life Sciences, 108 Hana-Science Building, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea
| | - Q. David Walker
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710 USA
| | - Bruce Blough
- Center for Drug Discovery, RTI International, Research Triangle Park, Durham, NC 27709 USA
| | - Cynthia M. Kuhn
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710 USA
| | - Soman N. Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, 169857 Singapore
- Department of Pathology, Duke University Medical Center, Durham, NC 27710 USA
- Department of Immunology, Duke University Medical Center, Durham, NC 27710 USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710 USA
| | - Herman F. Staats
- Department of Pathology, Duke University Medical Center, Durham, NC 27710 USA
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710 USA
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC 27710 USA
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22
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Mencarelli A, Gunawan M, Yong KSM, Bist P, Tan WWS, Tan SY, Liu M, Huang EK, Fan Y, Chan JKY, Choi HW, Abraham SN, Chen Q. A humanized mouse model to study mast cells mediated cutaneous adverse drug reactions. J Leukoc Biol 2020; 107:797-807. [PMID: 31922289 PMCID: PMC7322799 DOI: 10.1002/jlb.3ma1219-210rr] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/13/2022] Open
Abstract
Recently a G‐protein‐coupled receptor, MAS Related GPR Family Member X2 (MRGPRX2), was identified as a specific receptor on human mast cells responsible for IgE independent adverse drug reactions (ADR). Although a murine homologue, Mrgprb2, has been identified for this receptor, its affinity for many ADR‐causing drugs is poor making it difficult to undertake in vivo studies to examine mechanisms of ADR and to develop therapeutic strategies. Here, we have created humanized mice capable of generating MRGPRX2‐expressing human MCs allowing for the study of MRGPRX2 MCs‐mediated ADR in vitro as well as in vivo. Humanized mice were generated by hydrodynamic‐injection of plasmids expressing human GM‐CSF and IL‐3 into NOD‐scid IL2R‐γ−/− strain of mice that had been transplanted with human hematopoietic stem cells. These GM/IL‐3 humice expressed high numbers of tissue human MCs but the MRGPRX2 receptor expressed in MCs were limited to few body sites including the skin. Importantly, large numbers of MRGPRX2‐expressing human MCs could be cultured from the bone marrow of GM/IL‐3 humice revealing these mice to be an important source of human MCs for in vitro studies of MRGPRX2‐related MCs activities. When GM/IL‐3 humice were exposed to known ADR causing contrast agents (meglumine and gadobutrol), the humice were found to experience anaphylaxis analogous to the clinical situation. Thus, GM/IL‐3 humice represent a valuable model for investigating in vivo interactions of ADR‐causing drugs and human MCs and their sequelae, and these mice are also a source of human MRGPRX2‐expressing MCs for in vitro studies.
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Affiliation(s)
- Andrea Mencarelli
- Program in Emerging Infectious Diseases, Duke - National University of Singapore Graduate Medical School, Singapore
| | - Merry Gunawan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Kylie Su Mei Yong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke - National University of Singapore Graduate Medical School, Singapore
| | - Wilson Wei Sheng Tan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Sue Yee Tan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Min Liu
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Edwin Kunxiang Huang
- Experimental Fetal Medicine Group, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yong Fan
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jerry Kok Yen Chan
- Experimental Fetal Medicine Group, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore
| | - Hae Woong Choi
- Department of Life Sciences, Korea University, Seoul, South Korea
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke - National University of Singapore Graduate Medical School, Singapore.,Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA.,Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA.,Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Qingfeng Chen
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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23
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Choi HW, Suwanpradid J, Kim IH, Staats HF, Haniffa M, MacLeod AS, Abraham SN. Perivascular dendritic cells elicit anaphylaxis by relaying allergens to mast cells via microvesicles. Science 2019; 362:362/6415/eaao0666. [PMID: 30409859 DOI: 10.1126/science.aao0666] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 04/20/2018] [Accepted: 09/12/2018] [Indexed: 12/13/2022]
Abstract
Anaphylactic reactions are triggered when allergens enter the blood circulation and activate immunoglobulin E (IgE)-sensitized mast cells (MCs), causing systemic discharge of prestored proinflammatory mediators. As MCs are extravascular, how they perceive circulating allergens remains a conundrum. Here, we describe the existence of a CD301b+ perivascular dendritic cell (DC) subset that continuously samples blood and relays antigens to neighboring MCs, which vigorously degranulate and trigger anaphylaxis. DC antigen transfer involves the active discharge of surface-associated antigens on 0.5- to 1.0-micrometer microvesicles (MVs) generated by vacuolar protein sorting 4 (VPS4). Antigen sharing by DCs is not limited to MCs, as neighboring DCs also acquire antigen-bearing MVs. This capacity of DCs to distribute antigen-bearing MVs to various immune cells in the perivascular space potentiates inflammatory and immune responses to blood-borne antigens.
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Affiliation(s)
- Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.
| | - Jutamas Suwanpradid
- Department of Dermatology, Duke University Medical Center, Durham, NC 27710, USA
| | - Il Hwan Kim
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27710, USA
| | - Herman F Staats
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.,Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA.,Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC 27710, USA
| | - Muzlifah Haniffa
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.,Department of Dermatology, Newcastle upon Tyne NHS Trust, Newcastle upon Tyne NE1 4LP, UK
| | - Amanda S MacLeod
- Department of Dermatology, Duke University Medical Center, Durham, NC 27710, USA.,Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.,Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA.,Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA.,Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
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24
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Choi HW, Chan C, Shterev ID, Lynch HE, Robinette TJ, Johnson-Weaver BT, Shi J, Sempowski GD, Kim SY, Dickson JK, Gooden DM, Abraham SN, Staats HF. Identification of Novel Mast Cell Activators Using Cell-Based High-Throughput Screening. SLAS Discov 2019; 24:628-640. [PMID: 30917061 DOI: 10.1177/2472555219834699] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mast cells (MCs) are known to regulate innate and adaptive immunity. MC activators have recently been described as safe and effective vaccine adjuvants. Many currently known MC activators are inadequate for in vivo applications, however, and research on identifying novel MC activators is limited. In this study, we identified novel MC activators by using high-throughput screening (HTS) assays using approximately 55,000 small molecules. Data sets obtained by the primary HTS assays were statistically evaluated using quality control rules and the B-score calculation, and compounds with B-scores of >3.0 were chosen as mast cell activators (hits). These hits were re-evaluated with secondary and tertiary HTS assays, followed by further statistical analysis. From these hits, we selected 15 compounds that caused degranulation in murine and human MCs, with potential for flexible chemical modification for further study. Among these 15 compounds, ST101036, ST029248, and ST026567 exhibited higher degranulation potency than other hit compounds in both human and mouse MCs. In addition, the 15 compounds identified promote de novo synthesis of cytokines and induce the release of eicosanoids from human and mouse MCs. HTS enabled us to identify small-molecule MC activators with unique properties that may be useful as vaccine adjuvants.
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Affiliation(s)
- Hae Woong Choi
- 1 Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Cliburn Chan
- 2 Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
| | - Ivo D Shterev
- 3 Duke Regional Biocontainment Laboratory, Duke University School of Medicine, Durham, NC, USA.,4 Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Heather E Lynch
- 3 Duke Regional Biocontainment Laboratory, Duke University School of Medicine, Durham, NC, USA.,4 Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.,5 Departments of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Taylor J Robinette
- 5 Departments of Medicine, Duke University School of Medicine, Durham, NC, USA
| | | | - Jianling Shi
- 1 Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Gregory D Sempowski
- 1 Department of Pathology, Duke University School of Medicine, Durham, NC, USA.,3 Duke Regional Biocontainment Laboratory, Duke University School of Medicine, Durham, NC, USA.,4 Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.,5 Departments of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - So Young Kim
- 6 Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, USA
| | | | - David M Gooden
- 8 Department of Chemistry, Duke University, Durham, NC, USA
| | - Soman N Abraham
- 1 Department of Pathology, Duke University School of Medicine, Durham, NC, USA.,9 Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC, USA.,10 Department of Immunology, Duke University Medical Center, Durham, NC, USA.,11 Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore
| | - Herman F Staats
- 1 Department of Pathology, Duke University School of Medicine, Durham, NC, USA.,4 Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.,10 Department of Immunology, Duke University Medical Center, Durham, NC, USA
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25
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Arifuzzaman M, Mobley YR, Choi HW, Bist P, Salinas CA, Brown ZD, Chen SL, Staats HF, Abraham SN. MRGPR-mediated activation of local mast cells clears cutaneous bacterial infection and protects against reinfection. Sci Adv 2019; 5:eaav0216. [PMID: 30613778 PMCID: PMC6314830 DOI: 10.1126/sciadv.aav0216] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 11/27/2018] [Indexed: 05/22/2023]
Abstract
Mast cells (MCs) are strategically distributed at barrier sites and prestore various immunocyte-recruiting cytokines, making them ideal targets for selective activation to treat peripheral infections. Here, we report that topical treatment with mastoparan, a peptide MC activator (MCA), enhances clearance of Staphylococcus aureus from infected mouse skins and accelerates healing of dermonecrotic lesions. Mastoparan functions by activating connective tissue MCs (CTMCs) via the MRGPRX2 (Mas-related G protein-coupled receptor member X2) receptor. Peripheral CTMC activation, in turn, enhances recruitment of bacteria-clearing neutrophils and wound-healing CD301b+ dendritic cells. Consistent with MCs playing a master coordinating role, MC activation also augmented migration of various antigen-presenting dendritic cells to draining lymph nodes, leading to stronger protection against a second infection challenge. MCAs therefore orchestrate both the innate and adaptive immune arms, which could potentially be applied to combat peripheral infections by a broad range of pathogens.
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Affiliation(s)
- Mohammad Arifuzzaman
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA
| | - Yuvon R. Mobley
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA
| | - Hae Woong Choi
- Department of Pathology, Duke University, Durham, NC 27710, USA
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | | | - Zachary D. Brown
- Undergraduate Program in Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - Swaine L. Chen
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Infectious Diseases Group, Genome Institute of Singapore, Singapore 138672, Singapore
| | - Herman F. Staats
- Department of Pathology, Duke University, Durham, NC 27710, USA
- Department of Immunology, Duke University, Durham, NC 27710, USA
- Department of Medicine, Duke University, Durham, NC 27710, USA
| | - Soman N. Abraham
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA
- Department of Pathology, Duke University, Durham, NC 27710, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
- Department of Immunology, Duke University, Durham, NC 27710, USA
- Corresponding author.
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26
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Jin C, Shelburne CP, Li G, Potts EN, Riebe KJ, Sempowski GD, Foster WM, Abraham SN. Particulate allergens potentiate allergic asthma in mice through sustained IgE-mediated mast cell activation. J Clin Invest 2018; 128:4742-4743. [PMID: 30272582 DOI: 10.1172/jci123039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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27
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Arifuzzaman M, Ang WXG, Choi HW, Nilles ML, St John AL, Abraham SN. Necroptosis of infiltrated macrophages drives Yersinia pestis dispersal within buboes. JCI Insight 2018; 3:122188. [PMID: 30232285 DOI: 10.1172/jci.insight.122188] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/07/2018] [Indexed: 12/18/2022] Open
Abstract
When draining lymph nodes become infected by Yersinia pestis (Y. pestis), a massive influx of phagocytic cells occurs, resulting in distended and necrotic structures known as buboes. The bubonic stage of the Y. pestis life cycle precedes septicemia, which is facilitated by trafficking of infected mononuclear phagocytes through these buboes. However, how Y. pestis convert these immunocytes recruited by host to contain the pathogen into vehicles for bacterial dispersal and the role of immune cell death in this context are unknown. We show that the lymphatic spread requires Yersinia outer protein J (YopJ), which triggers death of infected macrophages by downregulating a suppressor of receptor-interacting protein kinase 1-mediated (RIPK1-mediated) cell death programs. The YopJ-triggered cell death was identified as necroptotic, which released intracellular bacteria, allowing them to infect new neighboring cell targets. Dying macrophages also produced chemotactic sphingosine 1-phosphate, enhancing cell-to-cell contact, further promoting infection. This necroptosis-driven expansion of infected macrophages in buboes maximized the number of bacteria-bearing macrophages reaching secondary lymph nodes, leading to sepsis. In support, necrostatins confined bacteria within macrophages and protected mice from lethal infection. These findings define necrotization of buboes as a mechanism for bacterial spread and a potential target for therapeutic intervention.
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Affiliation(s)
| | | | - Hae Woong Choi
- Department of Pathology, Duke University, Durham, North Carolina, USA
| | - Matthew L Nilles
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA
| | - Ashley L St John
- Department of Pathology, Duke University, Durham, North Carolina, USA.,Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
| | - Soman N Abraham
- Department of Molecular Genetics and Microbiology and.,Department of Pathology, Duke University, Durham, North Carolina, USA.,Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.,Department of Immunology, Duke University, Durham, North Carolina, USA
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28
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Miao Y, Bist P, Wu J, Zhao Q, Li QJ, Wan Y, Abraham SN. Collaboration between Distinct Rab Small GTPase Trafficking Circuits Mediates Bacterial Clearance from the Bladder Epithelium. Cell Host Microbe 2018; 22:330-342.e4. [PMID: 28910634 DOI: 10.1016/j.chom.2017.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/21/2017] [Accepted: 08/01/2017] [Indexed: 01/21/2023]
Abstract
Rab small GTPases control membrane trafficking through effectors that recruit downstream mediators such as motor proteins. Subcellular trafficking typically involves multiple Rabs, with each specific step mediated by a distinct Rab protein. We describe a collaboration between two distinct Rab-protein-orchestrated trafficking circuits in bladder epithelial cells (BECs) that expels intracellular uropathogenic Escherichia coli (UPEC) from their intracellular niche. RAB11a and RAB27b and their trafficking circuitry are simultaneously involved in UPEC expulsion. While RAB11a recruits its effector RAB11FIP3 and cytoskeletal motor Dynein, RAB27b mobilizes the effector MyRIP and motor Myosin VIIa to mediate bacterial expulsion. This collaboration is coordinated by deposition of the exocyst complex on bacteria-containing vesicles, an event triggered by the innate receptor Toll-like receptor 4. Both RAB11a and RAB27b are recruited and activated by the exocyst complex components SEC6/SEC15. Thus, the cell autonomous defense system can mobilize and coalesce multiple subcellular trafficking circuitries to combat infections.
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Affiliation(s)
- Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA.
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Jianxuan Wu
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Qing Zhao
- School of Law, Duke University, Durham, NC 27707, USA
| | - Qi-Jing Li
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ying Wan
- Biomedical Analysis Center, Third Military Medical University, Chongqing 400038, China
| | - Soman N Abraham
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
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Saron WAA, Rathore APS, Ting L, Ooi EE, Low J, Abraham SN, St. John AL. Flavivirus serocomplex cross-reactive immunity is protective by activating heterologous memory CD4 T cells. Sci Adv 2018; 4:eaar4297. [PMID: 29978039 PMCID: PMC6031378 DOI: 10.1126/sciadv.aar4297] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 05/22/2018] [Indexed: 05/07/2023]
Abstract
How previous immunity influences immune memory recall and protection against related flaviviruses is largely unknown, yet encounter with multiple flaviviruses in a lifetime is increasingly likely. Using sequential challenges with dengue virus (DENV), yellow fever virus (YFV), and Japanese encephalitis virus (JEV), we induced cross-reactive cellular and humoral immunity among flaviviruses from differing serocomplexes. Antibodies against JEV enhanced DENV replication; however, JEV immunity was protective in vivo during secondary DENV1 infection, promoting rapid gains in antibody avidity. Mechanistically, JEV immunity activated dendritic cells and effector memory T cells, which developed a T follicular helper cell phenotype in draining lymph nodes upon secondary DENV1 infection. We identified cross-reactive epitopes that promote recall from a pool of flavivirus serocomplex cross-reactive memory CD4 T cells and confirmed that a similar serocomplex cross-reactive immunity occurs in humans. These results show that sequential immunizations for flaviviruses sharing CD4 epitopes should promote protection during a subsequent heterologous infection.
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Affiliation(s)
- Wilfried A. A. Saron
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
| | - Abhay P. S. Rathore
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
- Department of Pathology, Duke University Medical Center, Durham, NC 27705, USA
| | - Lim Ting
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
| | - Eng Eong Ooi
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
- Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Jenny Low
- Department of Infectious Diseases, Singapore General Hospital, Singapore, Singapore
| | - Soman N. Abraham
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
- Department of Pathology, Duke University Medical Center, Durham, NC 27705, USA
| | - Ashley L. St. John
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore, Singapore
- Department of Pathology, Duke University Medical Center, Durham, NC 27705, USA
- Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
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St John AL, Ang WXG, Rathore APS, Abraham SN. Reprograming immunity to food allergens. J Allergy Clin Immunol 2018; 141:1936-1939.e2. [PMID: 29421275 DOI: 10.1016/j.jaci.2018.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/19/2017] [Accepted: 01/08/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Ashley L St John
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore; Department of Microbiology and Immunology, National University of Singapore, Singapore; Department of Pathology, Duke University Medical Center, Durham, NC
| | - W X Gladys Ang
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | | | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore; Department of Pathology, Duke University Medical Center, Durham, NC; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC; Department of Immunology, Duke University Medical Center, Durham, NC.
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31
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Jin C, Shelburne CP, Li G, Potts EN, Riebe KJ, Sempowski GD, Foster WM, Abraham SN. Particulate allergens potentiate allergic asthma in mice through sustained IgE-mediated mast cell activation. J Clin Invest 2017; 127:3913. [PMID: 28920926 DOI: 10.1172/jci97321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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32
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Miao Y, Wu J, Abraham SN. Ubiquitination of Innate Immune Regulator TRAF3 Orchestrates Expulsion of Intracellular Bacteria by Exocyst Complex. Immunity 2017; 45:94-105. [PMID: 27438768 DOI: 10.1016/j.immuni.2016.06.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/26/2016] [Accepted: 06/21/2016] [Indexed: 12/27/2022]
Abstract
Although the intracellular trafficking system is integral to most physiologic activities, its role in mediating immune responses to infection has remained elusive. Here, we report that infected bladder epithelial cells (BECs) mobilized the exocyst complex, a powerful exporter of subcellular vesicles, to rapidly expel intracellular bacteria back for clearance. Toll-like receptor (TLR) 4 signals emanating from bacteria-containing vesicles (BCVs) were found to trigger K33-linked polyubiquitination of TRAF3 at Lys168, which was then detected by RalGDS, a guanine nucleotide exchange factor (GEF) that precipitated the assembly of the exocyst complex. Although this distinct modification of TRAF3 served to connect innate immune signaling to the cellular trafficking apparatus, it crucially ensured temporal and spatial accuracy in determining which among the many subcellular vesicles was recognized and selected for expulsion in response to innate immune signaling.
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Affiliation(s)
- Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA.
| | - Jianxuan Wu
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
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33
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Yang B, Suwanpradid J, Sanchez-Lagunes R, Choi HW, Hoang P, Wang D, Abraham SN, MacLeod AS. IL-27 Facilitates Skin Wound Healing through Induction of Epidermal Proliferation and Host Defense. J Invest Dermatol 2017; 137:1166-1175. [PMID: 28132857 PMCID: PMC5552041 DOI: 10.1016/j.jid.2017.01.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 12/20/2016] [Accepted: 01/04/2017] [Indexed: 11/17/2022]
Abstract
Skin wound repair requires a coordinated program of epithelial cell proliferation and differentiation as well as resistance to invading microbes. However, the factors that trigger epithelial cell proliferation in this inflammatory process are incompletely understood. In this study, we demonstrate that IL-27 is rapidly and transiently produced by CD301b+ cells in the skin after injury. The functional role of IL-27 and CD301b+ cells is demonstrated by the finding that CD301b-depleted mice exhibit delayed wound closure in vivo, which could be rescued by topical IL-27 treatment. Furthermore, genetic ablation of the IL-27 receptor (Il27Ra−/−) attenuates wound healing, suggesting an essential role for IL-27 signaling in skin regeneration in vivo. Mechanistically, IL-27 feeds back on keratinocytes to stimulate cell proliferation and re-epithelialization in the skin, whereas IL-27 leads to suppression of keratinocyte terminal differentiation. Finally, we identify that IL-27 potently increases expression of the antiviral oligoadenylate synthetase 2, but does not affect expression of antibacterial human beta defensin 2 or regenerating islet-derived protein 3-alpha. Together, our data suggest a previously unrecognized role for IL-27 in regulating epithelial cell proliferation and antiviral host defense during the normal wound healing response.
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Affiliation(s)
- Bin Yang
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Wuhan, China
| | - Jutamas Suwanpradid
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA
| | | | - Hae Woong Choi
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Peter Hoang
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Donghai Wang
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Soman N Abraham
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Amanda S MacLeod
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA.
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Abstract
The urinary tract is subject to frequent challenges from the gut microflora. Indeed, up to 40% of women will experience at least one urinary tract infection (UTI) during their lifetime. Uropathogenic Escherichia coli (UPEC) contribute to an overwhelming majority of these cases and they typically initiate UTIs by invading the superficial epithelium that lines the bladder lumen. In addition to serving as an effective barrier to noxious agents found in urine, bladder epithelial cells (BECs) play a key physiological role in regulating bladder volume to accommodate urine flow. UPEC appear to coopt this latter property to circumvent this normally impregnable epithelial barrier. However, in spite of this shortcoming, recent studies suggest that BECs possess several immune mechanisms to combat bacterial invasion including expulsion of invading bacteria back into the bladder lumen following infection. These antibacterial activities of BECs are triggered and coordinated by sensory molecules located on the epithelial cell membrane and within the cells. Although, they are the primary targets of microbial attack, BECs appear to be equipped with a diverse repertoire of defense schemes to fend off many of these microbial challenges.
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Affiliation(s)
- Jianxuan Wu
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA;; Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA;; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA;; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore
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35
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Choi HW, Bowen SE, Miao Y, Chan CY, Miao EA, Abrink M, Moeser AJ, Abraham SN. Loss of Bladder Epithelium Induced by Cytolytic Mast Cell Granules. Immunity 2016; 45:1258-1269. [PMID: 27939674 DOI: 10.1016/j.immuni.2016.11.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 08/20/2016] [Accepted: 09/13/2016] [Indexed: 01/09/2023]
Abstract
Programmed death and shedding of epithelial cells is a powerful defense mechanism to reduce bacterial burden during infection but this activity cannot be indiscriminate because of the critical barrier function of the epithelium. We report that during cystitis, shedding of infected bladder epithelial cells (BECs) was preceded by the recruitment of mast cells (MCs) directly underneath the superficial epithelium where they docked and extruded their granules. MCs were responding to interleukin-1β (IL-1β) secreted by BECs after inflammasome and caspase-1 signaling. Upon uptake of granule-associated chymase (mouse MC protease 4 [mMCPT4]), BECs underwent caspase-1-associated cytolysis and exfoliation. Thus, infected epithelial cells require a specific cue for cytolysis from recruited sentinel inflammatory cells before shedding.
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Affiliation(s)
- Hae Woong Choi
- Department of Pathology, Duke University, Durham, NC 27710, USA.
| | - Samantha E Bowen
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA
| | - Yuxuan Miao
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA
| | - Cheryl Y Chan
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Edward A Miao
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Magnus Abrink
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Adam J Moeser
- Departments of Large Animal Clinical Sciences and Physiology, Michigan State University, East Lansing, MI 48824, USA
| | - Soman N Abraham
- Department of Pathology, Duke University, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA; Department of Immunology, Duke University, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
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36
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Ang WG, Church AM, Kulis M, Choi HW, Burks AW, Abraham SN. Mast cell desensitization inhibits calcium flux and aberrantly remodels actin. J Clin Invest 2016; 126:4103-4118. [PMID: 27669462 PMCID: PMC5096925 DOI: 10.1172/jci87492] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 08/16/2016] [Indexed: 11/17/2022] Open
Abstract
Rush desensitization (DS) is a widely used and effective clinical strategy for the rapid inhibition of IgE-mediated anaphylactic responses. However, the cellular targets and underlying mechanisms behind this process remain unclear. Recent studies have implicated mast cells (MCs) as the primary target cells for DS. Here, we developed a murine model of passive anaphylaxis with demonstrated MC involvement and an in vitro assay to evaluate the effect of DS on MCs. In contrast with previous reports, we determined that functional IgE remains on the cell surface of desensitized MCs following DS. Despite notable reductions in MC degranulation following DS, the high-affinity IgE receptor FcεRI was still capable of transducing signals in desensitized MCs. Additionally, we found that displacement of the actin cytoskeleton and its continued association with FcεRI impede the capacity of desensitized MCs to evoke the calcium response that is essential for MC degranulation. Together, these findings suggest that reduced degranulation responses in desensitized MCs arise from aberrant actin remodeling, providing insights that may lead to improvement of DS treatments for anaphylactic responses.
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Affiliation(s)
- W.X. Gladys Ang
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Alison M. Church
- GlaxoSmithKline, Rare Diseases Unit, Research Triangle Park, North Carolina, USA
| | - Mike Kulis
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - A. Wesley Burks
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Soman N. Abraham
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Pathology and
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
- Program in Emerging Infectious Diseases, Duke–National University of Singapore, Singapore
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37
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Chan KR, Wang X, Saron WAA, Gan ES, Tan HC, Mok DZL, Zhang SLX, Lee YH, Liang C, Wijaya L, Ghosh S, Cheung YB, Tannenbaum SR, Abraham SN, St John AL, Low JGH, Ooi EE. Cross-reactive antibodies enhance live attenuated virus infection for increased immunogenicity. Nat Microbiol 2016; 1:16164. [PMID: 27642668 PMCID: PMC7097525 DOI: 10.1038/nmicrobiol.2016.164] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/08/2016] [Indexed: 01/10/2023]
Abstract
Vaccination has achieved remarkable successes in the control of childhood viral diseases. To control emerging infections, however, vaccines will need to be delivered to older individuals who, unlike infants, probably have had prior infection or vaccination with related viruses and thus have cross-reactive antibodies against the vaccines. Whether and how these cross-reactive antibodies impact live attenuated vaccination efficacy is unclear. Using an open-label randomized trial design, we show that subjects with a specific range of cross-reactive antibody titres from a prior inactivated Japanese encephalitis vaccination enhanced yellow fever (YF) immunogenicity upon YF vaccination. Enhancing titres of cross-reactive antibodies prolonged YF vaccine viraemia, provoked greater pro-inflammatory responses, and induced adhesion molecules intrinsic to the activating Fc-receptor signalling pathway, namely immune semaphorins, facilitating immune cell interactions and trafficking. Our findings clinically demonstrate antibody-enhanced infection and suggest that vaccine efficacy could be improved by exploiting cross-reactive antibodies.
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Affiliation(s)
- Kuan Rong Chan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Xiaohui Wang
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Wilfried A A Saron
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Esther Shuyi Gan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Hwee Cheng Tan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Darren Z L Mok
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
| | - Summer Li-Xin Zhang
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Yie Hou Lee
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research & Technology (SMART), Singapore 138602.,KK Research Centre, KK Women's and Children's Hospital, Singapore 229899
| | - Cui Liang
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research & Technology (SMART), Singapore 138602
| | - Limin Wijaya
- Department of Infectious Diseases, Singapore General Hospital, Singapore 169856
| | - Sujoy Ghosh
- Centre for Computational Biology, Duke-NUS Medical School, Singapore 169857
| | - Yin Bun Cheung
- Center for Quantitative Medicine, Duke-NUS Medical School, Singapore 169857.,Department for International Health, University of Tampere, 33100 Finland
| | - Steven R Tannenbaum
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research & Technology (SMART), Singapore 138602.,Department of Biological Engineering and Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857.,Department of Immunology and the Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Ashley L St John
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857
| | - Jenny G H Low
- Department of Infectious Diseases, Singapore General Hospital, Singapore 169856
| | - Eng Eong Ooi
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857.,Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597.,Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research & Technology (SMART), Singapore 138602
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38
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Abstract
Mast cells (MCs) are present in various tissues and are responsible for initiating many of the early inflammatory responses to extrinsic challenges. Recent studies have demonstrated that MCs can tailor their responses, depending on the stimulus encountered and the tissue in which they are stimulated. In this issue of the JCI, Gaudenzio and colleagues examine the mechanistic differences between MC responses observed after engagement of Fcε receptor I and those seen after MC stimulation via the recently identified G protein-coupled receptor MRGPRX2. By showing that discrete cellular activation patterns affect the phenotype of the MC response in vivo and in vitro, the authors provide important information about how MCs differentially process various stimuli into distinct degranulation programs.
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39
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Hsia BJ, Ledford JG, Potts-Kant EN, Nikam VS, Lugogo NL, Foster WM, Kraft M, Abraham SN, Wright JR. Correction notice for TNF-R on mast cells regulate airway responses to Mycoplasma pneumoniae. J Allergy Clin Immunol 2015; 137:336. [PMID: 26611673 DOI: 10.1016/j.jaci.2015.09.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 09/24/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Bethany J Hsia
- Department of Cell Biology, Duke University Medical Center, Durham, NC
| | - Julie G Ledford
- Department of Cell Biology, Duke University Medical Center, Durham, NC; Department of Pulmonary, Allergy and Critical Care Medicine, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC.
| | - Erin N Potts-Kant
- Department of Pulmonary, Allergy and Critical Care Medicine, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | - Vinayak S Nikam
- Department of Cell Biology, Duke University Medical Center, Durham, NC
| | - Njira L Lugogo
- Department of Pulmonary, Allergy and Critical Care Medicine, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | - W Michael Foster
- Department of Pulmonary, Allergy and Critical Care Medicine, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | - Monica Kraft
- Department of Pulmonary, Allergy and Critical Care Medicine, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | - Soman N Abraham
- Department of Pathology, Immunology, Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC
| | - Jo Rae Wright
- Department of Cell Biology, Duke University Medical Center, Durham, NC
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Abstract
The urinary tract is constantly exposed to microorganisms that inhabit the gastrointestinal tract, but generally the urinary tract resists infection by gut microorganisms. This resistance to infection is mainly ascribed to the versatility of the innate immune defences in the urinary tract, as the adaptive immune responses are limited particularly when only the lower urinary tract is infected. In recent years, as the strengths and weaknesses of the immune system of the urinary tract have emerged and as the virulence attributes of uropathogens are recognized, several potentially effective and unconventional strategies to contain or prevent urinary tract infections have emerged.
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Affiliation(s)
- Soman N Abraham
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Yuxuan Miao
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA
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41
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Miao Y, Li G, Zhang X, Xu H, Abraham SN. A TRP Channel Senses Lysosome Neutralization by Pathogens to Trigger Their Expulsion. Cell 2015; 161:1306-19. [PMID: 26027738 PMCID: PMC4458218 DOI: 10.1016/j.cell.2015.05.009] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 01/28/2015] [Accepted: 03/27/2015] [Indexed: 02/01/2023]
Abstract
Vertebrate cells have evolved elaborate cell-autonomous defense programs to monitor subcellular compartments for infection and to evoke counter-responses. These programs are activated by pathogen-associated pattern molecules and by various strategies intracellular pathogens employ to alter cellular microenvironments. Here, we show that, when uropathogenic E. coli (UPEC) infect bladder epithelial cells (BECs), they are targeted by autophagy but avoid degradation because of their capacity to neutralize lysosomal pH. This change is detected by mucolipin TRP channel 3 (TRPML3), a transient receptor potential cation channel localized to lysosomes. TRPML3 activation then spontaneously initiates lysosome exocytosis, resulting in expulsion of exosome-encased bacteria. These studies reveal a cellular default system for lysosome homeostasis that has been co-opted by the autonomous defense program to clear recalcitrant pathogens.
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Affiliation(s)
- Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Guojie Li
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Xiaoli Zhang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Haoxing Xu
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Soman N Abraham
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore.
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42
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Kulis MD, Burk C, Yue X, Zhang H, Steele PH, Hamilton DK, Beavers A, Wright BL, Abraham SN, Vickery BP, Burks AW. Basophil Hyporesponsiveness Following Six Months of Peanut Oral Immunotherapy (OIT) Is Associated with Suppression of Syk Phosphorylation. J Allergy Clin Immunol 2015. [DOI: 10.1016/j.jaci.2014.12.1010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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St John AL, Ang WXG, Huang MN, Kunder CA, Chan EW, Gunn MD, Abraham SN. S1P-Dependent trafficking of intracellular yersinia pestis through lymph nodes establishes Buboes and systemic infection. Immunity 2014; 41:440-450. [PMID: 25238098 DOI: 10.1016/j.immuni.2014.07.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/14/2014] [Indexed: 11/19/2022]
Abstract
Pathologically swollen lymph nodes (LNs), or buboes, characterize Yersinia pestis infection, yet how they form and function is unknown. We report that colonization of the draining LN (dLN) occurred due to trafficking of infected dendritic cells and monocytes in temporally distinct waves in response to redundant chemotactic signals, including through CCR7, CCR2, and sphingosine-1-phospate (S1P) receptors. Retention of multiple subsets of phagocytes within peripheral LNs using the S1P receptor agonist FTY720 or S1P1-specific agonist SEW2871 increased survival, reduced colonization of downstream LNs, and limited progression to transmission-associated septicemic or pneumonic disease states. Conditional deletion of S1P1 in mononuclear phagocytes abolished node-to-node trafficking of infected cells. Thus, Y. pestis-orchestrated LN remodeling promoted its dissemination via host cells through the lymphatic system but can be blocked by prevention of leukocyte egress from DLNs. These findings define a novel trafficking route of mononuclear phagocytes and identify S1P as a therapeutic target during infection.
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Affiliation(s)
- Ashley L St John
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.
| | - W X Gladys Ang
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Min-Nung Huang
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Christian A Kunder
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Elizabeth W Chan
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Michael D Gunn
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
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Abstract
Antimicrobial agents secreted into urine potentially play a powerful role in the defense of the urinary tract. In this issue of Immunity, Jaillon et al. (2014) describe a role for pentraxin 3 molecules in complementing the host's cellular innate immune responses to uropathogens.
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Affiliation(s)
- Yuxuan Miao
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore.
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Abstract
A growing body of evidence indicates that the kidneys contribute substantially to immune defense against pathogens in the urinary tract. In this issue, Paragas et al. report that α-intercalated cells (A-ICs) within the nephron collecting duct sense infecting Gram-negative bacteria, resulting in simultaneously secretion of the iron chelating protein lipocalin 2 (LCN2) and protons, which acidify the urine. A-IC-specific LCN2 and proton secretion markedly reduced the ability of infecting uropathogenic E. coli (UPEC) to grow and sustain infection. The capacity of A-ICs to sense and actively promote clearance of infecting bacteria in the lower urinary tract represents a novel function for these specialized kidney cells, which are best known for their role in modulating acid-base homeostasis.
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Chang JC, Leung J, Tang T, Holzknecht ZE, Hartwig MG, Duane Davis R, Parker W, Abraham SN, Lin SS. Cromolyn ameliorates acute and chronic injury in a rat lung transplant model. J Heart Lung Transplant 2014; 33:749-57. [PMID: 24768366 DOI: 10.1016/j.healun.2014.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 03/06/2014] [Accepted: 03/24/2014] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND Mast cells have been associated with obliterative bronchiolitis (OB) in human pulmonary allografts, although their role in the development of OB remains unknown. METHODS In this study, we evaluated the role of mast cells in pulmonary allograft rejection using an orthotopic rat pulmonary allograft model that utilizes chronic aspiration of gastric fluid to reliably obtain OB. Pulmonary allograft recipients (n = 35) received chronic aspiration of gastric fluid with (n = 10) and without (n = 16) treatment with a mast cell membrane stabilizer, cromolyn sodium, or chronic aspiration with normal saline (n = 9) as a control. RESULTS The acute graft injury associated with long ischemic time in the model (6 hours total ischemic time; typical acute graft injury rate ~30%) was apparently blocked by cromolyn, because peri-operative mortality associated with the acute graft injury was not observed in any of the animals receiving cromolyn (p = 0.045). Further, the rats receiving cromolyn developed significantly fewer OB lesions than those treated with gastric fluid alone (p < 0.001), with a mean reduction of 46% of the airways affected. CONCLUSIONS These findings provide impetus for further studies aimed at elucidating the effects of cromolyn and the role of mast cells in pulmonary allotransplantation.
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Affiliation(s)
- Jui-Chih Chang
- Department of Surgery, Duke University Medical Center, Durham, North Carolina; Department of Pathology, Duke University Medical Center, Durham, North Carolina; Department of Surgery, Tzu Chi General Hospital, Hualien, Taiwan
| | - Jason Leung
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Tao Tang
- Department of Surgery, Duke University Medical Center, Durham, North Carolina; Department of Thoracic and Cardiovascular Surgery, The Second Xiangya Hospital, Changsha City, Hunan province, People's Republic of China
| | - Zoie E Holzknecht
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Matthew G Hartwig
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - R Duane Davis
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - William Parker
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, North Carolina; Departments of Immunology, Duke University Medical Center, Durham, North Carolina; Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina
| | - Shu S Lin
- Department of Surgery, Duke University Medical Center, Durham, North Carolina; Department of Pathology, Duke University Medical Center, Durham, North Carolina; Departments of Immunology, Duke University Medical Center, Durham, North Carolina.
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47
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Choi HW, Abraham SN. Mast cell mediator responses and their suppression by pathogenic and commensal microorganisms. Mol Immunol 2014; 63:74-9. [PMID: 24636146 DOI: 10.1016/j.molimm.2014.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
Abstract
Mast cells (MCs) are selectively found at the host environment interface and are capable of secreting a wide array of pharmacologically active mediators, many of which are prepackaged in granules. Over the past two decades, it has become clear that these cells have the capacity to recognize a range of infectious agents allowing them to play a key role in initiating and modulating early immune responses to infectious agents. However, a number of pathogenic and commensal microbes appear to have evolved distinct mechanisms to suppress MC mediator release to avoid elimination in the host. Understanding how these microbes suppress MC functions may have significant therapeutic value to relieve inflammatory disorders mediated by MCs.
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Affiliation(s)
- Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore.
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Choi HW, Brooking-Dixon R, Neupane S, Lee CJ, Miao EA, Staats HF, Abraham SN. Salmonella typhimurium impedes innate immunity with a mast-cell-suppressing protein tyrosine phosphatase, SptP. Immunity 2014; 39:1108-20. [PMID: 24332031 DOI: 10.1016/j.immuni.2013.11.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 09/30/2013] [Indexed: 11/25/2022]
Abstract
The virulence of Salmonella is linked to its invasive capacity and suppression of adaptive immunity. This does not explain, however, the rapid dissemination of the pathogen after it breaches the gut. In our study, S. Typhimurium suppressed degranulation of local mast cells (MCs), resulting in limited neutrophil recruitment and restricting outflow of vascular contents into infection sites, thus facilitating bacterial spread. MC suppression was mediated by secreted effector protein (SptP), which shares structural homology with Yersinia YopH. SptP functioned by dephosphorylating the vesicle fusion protein N-ethylmalemide-sensitive factor and by blocking phosphorylation of Syk. Without SptP, orally challenged S. Typhimurium failed to suppress MC degranulation and exhibited limited colonization of the mesenteric lymph nodes. Administration of SptP to sites of E. coli infection markedly enhanced its virulence. Thus, SptP-mediated inactivation of local MCs is a powerful mechanism utilized by S. Typhimurium to impede early innate immunity.
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Affiliation(s)
- Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Rhea Brooking-Dixon
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Subham Neupane
- Undergraduate Program in Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Chul-Jin Lee
- Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA
| | - Edward A Miao
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Herman F Staats
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC 27710, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710, USA; Program in Emerging Infectious Diseases, Duke - National University of Singapore Graduate Medical School, Singapore 169857, Singapore.
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Choi HW, Brooking R, Neupane S, Lee CJ, Miao E, Staats HF, Abraham SN. Salmonella Typhimurium Impedes Innate Immunity With a Mast Cell-Suppressing Tyrosine Phosphatase Sptp. J Allergy Clin Immunol 2014. [DOI: 10.1016/j.jaci.2013.12.879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Dengue virus (DENV) is a human pathogen that causes severe and potentially fatal disease in millions of individuals each year. Immune-mediated pathology is thought to underlie many of the complications of DENV infection in humans, but the notable limitations of the available animal models have impeded our knowledge of the interactions between DENV and the immune system. In this Opinion article, we discuss some of the controversies in the field of dengue research relating to the interaction between DENV and the mammalian host. We highlight key barriers hindering our understanding of the molecular pathogenesis of DENV and offer suggestions for the most effective ways in which the role of the immune system in the protection from, and pathology of, DENV infection can be addressed experimentally.
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Affiliation(s)
- Ashley L St John
- Program in Emerging Infectious Diseases, Graduate Medical School, Duke-National University of Singapore, 8 College Road, 169857, Singapore
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