1
|
Yang J, Luo Z, Ma J, Wang Y, Cheng N. A next-generation STING agonist MSA-2: From mechanism to application. J Control Release 2024; 371:273-287. [PMID: 38789087 DOI: 10.1016/j.jconrel.2024.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/05/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
The stimulator of interferon genes (STING) connects the innate and adaptive immune system and plays a significant role in antitumor immunity. Over the past decades, endogenous and CDN-derived STING agonists have been a hot topic in the research of cancer immunotherapies. However, these STING agonists are either in infancy with limited biological effects or have failed in clinical trials. In 2020, a non-nucleotide STING agonist MSA-2 was identified, which exhibited satisfactory antitumor effects in animal studies and is amenable to oral administration. Due to its distinctive binding mode and enhanced bioavailability, there have been accumulating interests and an array of studies on MSA-2 and its derivatives, spanning its structure-activity relationship, delivery systems, applications in combination therapies, etc. Here, we provide a comprehensive review of MSA-2 and interventional strategies based on this family of STING agonists to help more researchers extend the investigation on MSA-2 in the future.
Collapse
Affiliation(s)
- Junhan Yang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Zhenyu Luo
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Jingyi Ma
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Yi Wang
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Ningtao Cheng
- School of Medicine, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| |
Collapse
|
2
|
Lanng KRB, Lauridsen EL, Jakobsen MR. The balance of STING signaling orchestrates immunity in cancer. Nat Immunol 2024; 25:1144-1157. [PMID: 38918609 DOI: 10.1038/s41590-024-01872-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/14/2024] [Indexed: 06/27/2024]
Abstract
Over the past decade, it has become clear that the stimulator of interferon genes (STING) pathway is critical for a variety of immune responses. This endoplasmic reticulum-anchored adaptor protein has regulatory functions in host immunity across a spectrum of conditions, including infectious diseases, autoimmunity, neurobiology and cancer. In this Review, we outline the central importance of STING in immunological processes driven by expression of type I and III interferons, as well as inflammatory cytokines, and we look at therapeutic options for targeting STING. We also examine evidence that challenges the prevailing notion that STING activation is predominantly beneficial in combating cancer. Further exploration is imperative to discern whether STING activation in the tumor microenvironment confers true benefits or has detrimental effects. Research in this field is at a crossroads, as a clearer understanding of the nuanced functions of STING activation in cancer is required for the development of next-generation therapies.
Collapse
|
3
|
Aybar-Torres A, Saldarriaga LA, Pham AT, Emtiazjoo AM, Sharma AK, Bryant AJ, Jin L. The common TMEM173 HAQ, AQ alleles rescue CD4 T cellpenia, restore T-regs, and prevent SAVI (N153S) inflammatory disease in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.05.561109. [PMID: 37886547 PMCID: PMC10602033 DOI: 10.1101/2023.10.05.561109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
The significance of STING (encoded by the TMEM173 gene) in tissue inflammation and cancer immunotherapy has been increasingly recognized. Intriguingly, common human TMEM173 alleles R71H-G230A-R293Q (HAQ) and G230A-R293Q (AQ) are carried by ~60% of East Asians and ~40% of Africans, respectively. Here, we examine the modulatory effects of HAQ, AQ alleles on STING-associated vasculopathy with onset in infancy (SAVI), an autosomal dominant, fatal inflammatory disease caused by gain-of-function human STING mutations. CD4 T cellpenia is evident in SAVI patients and mouse models. Using STING knock-in mice expressing common human TMEM173 alleles HAQ, AQ, and Q293, we found that HAQ, AQ, and Q293 splenocytes resist STING-mediated cell death ex vivo, establishing a critical role of STING residue 293 in cell death. The HAQ/SAVI(N153S) and AQ/SAVI(N153S) mice did not have CD4 T cellpenia. The HAQ/SAVI(N153S), AQ/SAVI(N153S) mice have more (~10-fold, ~20-fold, respectively) T-regs than WT/SAVI(N153S) mice. Remarkably, while they have comparable TBK1, IRF3, and NFκB activation as the WT/SAVI, the AQ/SAVI mice have no tissue inflammation, regular body weight, and normal lifespan. We propose that STING activation promotes tissue inflammation by depleting T-regs cells in vivo. Billions of modern humans have the dominant HAQ, AQ alleles. STING research and STING-targeting immunotherapy should consider TMEM173 heterogeneity in humans.
Collapse
Affiliation(s)
- Alexandra Aybar-Torres
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| | - Lennon A Saldarriaga
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| | - Ann T Pham
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| | - Amir M Emtiazjoo
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| | - Ashish K Sharma
- Division of Vascular Surgery & Endovascular Therapy, Department of Surgery, University of Florida, Gainesville, FL 32610, U.S.A
| | - Andrew J Bryant
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| | - Lei Jin
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, U.S.A
| |
Collapse
|
4
|
Enbergs N, Halabi EA, Goubet A, Schleyer K, Fredrich IR, Kohler RH, Garris CS, Pittet MJ, Weissleder R. Pharmacological Polarization of Tumor-Associated Macrophages Toward a CXCL9 Antitumor Phenotype. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309026. [PMID: 38342608 PMCID: PMC11022742 DOI: 10.1002/advs.202309026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/16/2024] [Indexed: 02/13/2024]
Abstract
Tumor-associated macrophages (TAM) are a diverse population of myeloid cells that are often abundant and immunosuppressive in human cancers. CXCL9Hi TAM has recently been described to have an antitumor phenotype and is linked to immune checkpoint response. Despite the emerging understanding of the unique antitumor TAM phenotype, there is a lack of TAM-specific therapeutics to exploit this new biological understanding. Here, the discovery and characterization of multiple small-molecule enhancers of chemokine ligand 9 (CXCL9) and their targeted delivery in a TAM-avid systemic nanoformulation is reported. With this strategy, it is efficient encapsulation and release of multiple drug loads that can efficiently induce CXCL9 expression in macrophages, both in vitro and in vivo in a mouse tumor model. These observations provide a window into the molecular features that define TAM-specific states, an insight a novel therapeutic anticancer approach is used to discover.
Collapse
Affiliation(s)
- Noah Enbergs
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Elias A. Halabi
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Anne‐Gaëlle Goubet
- Department of Pathology and ImmunologyUniversity of GenevaGeneva1211Switzerland
- AGORA Cancer CenterSwiss Cancer Center LemanLausanne1011Switzerland
| | - Kelton Schleyer
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Ina R. Fredrich
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Rainer H. Kohler
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Christopher S. Garris
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Mikaël J. Pittet
- Department of Pathology and ImmunologyUniversity of GenevaGeneva1211Switzerland
- AGORA Cancer CenterSwiss Cancer Center LemanLausanne1011Switzerland
- Ludwig Institute for Cancer ResearchLausanne1005Switzerland
| | - Ralph Weissleder
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
- Department of Systems BiologyHarvard Medical School200 Longwood AveBostonMA02115USA
| |
Collapse
|
5
|
Chauhan M, Osbron CA, Koehler HS, Goodman AG. STING dependent BAX-IRF3 signaling results in apoptosis during late-stage Coxiella burnetii infection. Cell Death Dis 2024; 15:195. [PMID: 38459007 PMCID: PMC10924102 DOI: 10.1038/s41419-024-06573-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/10/2024]
Abstract
STING (STimulator of Interferon Genes) is a cytosolic sensor for cyclic dinucleotides (CDNs) and initiates an innate immune response upon binding to CDNs. Coxiella burnetii is a Gram-negative obligate intracellular bacterium and the causative agent of the zoonotic disease Q fever. The ability of C. burnetii to inhibit host cell death is a critical factor in disease development. Previous studies have shown that C. burnetii inhibits host cell apoptosis at early stages of infection. However, during the late-stages of infection, there is host cell lysis resulting in the release of bacteria to infect bystander cells. Thus, we investigated the role of STING during late-stages of C. burnetii infection and examined STING's impact on host cell death. We show that the loss of STING results in higher bacterial loads and abrogates IFNβ and IL6 induction at 12 days post-infection. The absence of STING during C. burnetii infection significantly reduces apoptosis through decreased caspase-8 and -3 activation. During infection, STING activates IRF3 which interacts with BAX. BAX then translocates to the mitochondria, which is followed by mitochondrial membrane depolarization. This results in increased cytosolic mtDNA in a STING-dependent manner. The presence of increased cytosolic mtDNA results in greater cytosolic 2'-3' cGAMP, creating a positive feedback loop and leading to further increases in STING activation and its downstream signaling. Taken together, we show that STING signaling is critical for BAX-IRF3-mediated mitochondria-induced apoptosis during late-stage C. burnetii infection.
Collapse
Affiliation(s)
- Manish Chauhan
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - Chelsea A Osbron
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - Heather S Koehler
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - Alan G Goodman
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA.
- Paul G. Allen School for Global Health, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA.
| |
Collapse
|
6
|
Saulters EL, Kennedy PT, Carter RJ, Alsufyani A, Jones TM, Woolley JF, Dahal LN. Differential Regulation of the STING Pathway in Human Papillomavirus-Positive and -Negative Head and Neck Cancers. CANCER RESEARCH COMMUNICATIONS 2024; 4:118-133. [PMID: 38147007 PMCID: PMC10793589 DOI: 10.1158/2767-9764.crc-23-0299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/19/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
Squamous cell carcinomas, which arise from the cells that line the mucosal surfaces of the head and neck, represent the most common type of head and neck cancers (HNSCC). Human papillomavirus (HPV) infection has been strongly associated with the development of oropharyngeal cancers, which are cancers that occur in the back of the throat, including the tonsils and base of the tongue. HNSCCs with and without HPV infection have distinct pathology, with HPV-positive patients having higher levels of immune infiltration, activation in the tumor microenvironment and better response to radiation and chemotherapy. It is, however, unclear whether HPV infection in HNSCCs has the potential to activate innate-immune sensing pathways and if these cancers possess intrinsic immunogenicity associated with HPV infection. Here we investigate the innate immune stimulator of interferon genes (STING) pathway and immune responses to STING activation in HNSCCs and uncover fundamental differences in the regulation of this pathway in cell lines versus primary human clinical specimens. We show that while STING is differentially expressed in HPV-positive and -negative HNSCC cell lines, they exhibit a gross functional defect in signaling through this pathway. However, STING activation in immune cell populations generated immune signatures predicted to elicit useful tumoricidal mechanisms. In contrast, IHC analysis of human tissue microarrays revealed enhanced STING expression in HPV-related tumors and high intratumoral expression of STING correlated with increased survival. SIGNIFICANCE STING is an important innate immune sensor of cytosolic DNA, inducing essential antiviral and antitumoral responses. This research shows that STING expression is enhanced in HPV-positive HNSCC patient tissue, with high intratumoral STING expression correlating with increased survival. In addition, STING activation in immune cell populations augmented antitumoral effects against HNSCCs, suggesting patients may benefit from the use of STING agonists in combination with traditional therapies.
Collapse
Affiliation(s)
- Emma L. Saulters
- Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom
| | - Paul T. Kennedy
- Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom
| | - Rachel J. Carter
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Abdullah Alsufyani
- Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom
| | - Terence M. Jones
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, United Kingdom
| | - John F. Woolley
- Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom
| | - Lekh N. Dahal
- Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom
| |
Collapse
|
7
|
Wang R, Hussain A, Guo Q, Ma M. cGAS-STING at the crossroads in cancer therapy. Crit Rev Oncol Hematol 2024; 193:104194. [PMID: 37931770 DOI: 10.1016/j.critrevonc.2023.104194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 10/09/2023] [Accepted: 11/01/2023] [Indexed: 11/08/2023] Open
Abstract
DNA is highly immunogenic, both exogenous and endogenous DNA can activate the pathogen-associated molecular pattern (PAMP) and danger-associated molecular pattern (DAMP), respectively, and hence activate the evolutionarily conserved cGAS-STING pathway for inflammatory responses. The cGAS-STING signaling pathway plays a very important role in the pathogenesis and progression of neoplastic diseases. For cancer therapy, there are some discrepancies on whether cGAS-STING should be inhibited or activated. Deregulated cGAS-STING signaling pathway might be the origin and pathogenesis of tumor, understanding and modulating cGAS-STING signaling holds great promise for cancer therapy. In this review article, we discuss the molecular mechanisms underlying cGAS-STING deregulation, highlighting the tumor inhibiting and promoting roles and challenges with cGAS-STING agonists in the context of cancer therapies.
Collapse
Affiliation(s)
- Rui Wang
- Department of Hematology, the Second Affiliated Hospital of Soochow University, 215004 Suzhou, China; Department of Oncology, Suqian Affiliated Hospital of Xuzhou Medical University, 223800 Suqian, China.
| | - Aashiq Hussain
- Cancer Science Institute of Singapore, National University of Singapore, 119077 CSI, Singapore
| | - Quanquan Guo
- Department of Hematology, the Second Affiliated Hospital of Soochow University, 215004 Suzhou, China; Department of Oncology, Suqian Affiliated Hospital of Xuzhou Medical University, 223800 Suqian, China
| | - Meimei Ma
- Department of Pathology, Suqian Affiliated Hospital of Xuzhou Medical University, 223800 Suqian, China
| |
Collapse
|
8
|
Zhang S, Zeng Y, Wang K, Song G, Yu Y, Meng T, Yuan H, Hu F. Chitosan-based nano-micelles for potential anti-tumor immunotherapy: Synergistic effect of cGAS-STING signaling pathway activation and tumor antigen absorption. Carbohydr Polym 2023; 321:121346. [PMID: 37739513 DOI: 10.1016/j.carbpol.2023.121346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/09/2023] [Accepted: 08/28/2023] [Indexed: 09/24/2023]
Abstract
Cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) signaling pathway is an essential DNA-sensing pathway to regulate the innate and adaptive immune response, which plays an important role in tumor immunotherapy. Although the STING agonists can be used, they are limited by their inability to target immune cells and systemic immunotoxicity, calling for novel strategies to accurately and effectively activate the cGAS-STING signaling pathway. Herein, mannose-modified stearic acid-grafted chitosan (M-CS-SA) micelles with the ability to activate the cGAS-STING signaling pathway and absorb tumor antigens were constructed. The chitosan-based nano-micelles showed valid dendritic cell (DCs) targeting and could escape from lysosomes leading to the activation of the cGAS-STING signaling pathway and the maturation of DCs. In addition, a combinatorial therapy was presented based on the programmed administration of oxaliplatin and M-CS-SA. M-CS-SA adsorbed tumor antigens released by chemotherapy to construct an autologous tumor vaccine and built a comprehensive antitumor immune response. In vivo, the combinatorial therapy achieved a tumor inhibition rate of 76.31 % at the oxaliplatin dose of 5 mg/kg and M-CS-SA dose of 15 mg/kg, and increased the CD3+ CD8+ T cell infiltration. This work demonstrated that M-CS-SA and its co-treatment with oxaliplatin showed great potential in tumor immunotherapy.
Collapse
Affiliation(s)
- Shufen Zhang
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Yingping Zeng
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Kai Wang
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Guangtao Song
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Yiru Yu
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Tingting Meng
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Hong Yuan
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China; Jinhua Institute of Zhejiang University, Jinhua 321299, China
| | - Fuqiang Hu
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China; Jinhua Institute of Zhejiang University, Jinhua 321299, China.
| |
Collapse
|
9
|
Cho Y, Kang M, Ji SH, Jeong HJ, Jung JE, Oh DH, Park S, Park YY, Choi J, Kim S, Kim NJ, Lee DH, Park CS, Han SJ, Lee S, Choi J. Discovery of Orally Bioavailable Phthalazinone Analogues as an ENPP1 Inhibitor for STING-Mediated Cancer Immunotherapy. J Med Chem 2023; 66:15141-15170. [PMID: 37963811 DOI: 10.1021/acs.jmedchem.3c01061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
A lack of the T cell-inflamed tumor microenvironment limits the efficacy of immune checkpoint inhibitors (ICIs). Activation of stimulator of interferon genes (STING)-mediated innate immunity has emerged as a novel therapeutic approach in cancer therapy. 2',3'-Cyclic GMP-AMP (cGAMP) is a natural STING agonist; however, cGAMP is subjected to endogenous degradation by ecto-nucleotide pyrophosphatase phosphodiesterase 1 (ENPP1). To improve the ICI response rate, we developed 29f, a novel ENPP1 inhibitor with phthalazin-1(2H)-one as the core scaffold. 29f inhibited the cGAMP hydrolysis by ENPP1 in vitro (IC50 = 68 nM) and enhanced the STING-mediated type I interferon response in both immune and tumor cells. 29f demonstrated excellent metabolic stability and bioavailability (F = 65%). Orally administered 29f promoted tumor growth inhibition in a CT26 syngeneic model and increased the anti-PD-L1 response. Furthermore, 29f-induced immunological memory prevented the tumor relapse against tumor rechallenge, suggesting the promising therapeutic potential of 29f.
Collapse
Affiliation(s)
- Yeonguk Cho
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Miso Kang
- Department of Fundamental Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Su Hyun Ji
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Chemistry, Sogang University, Seoul 04107, Republic of Korea
| | - Hee Jin Jeong
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jae Eun Jung
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Do Hee Oh
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Sunyoung Park
- Txinno Bioscience Inc., Yongin 16942, Republic of Korea
| | - Yong-Yea Park
- Txinno Bioscience Inc., Yongin 16942, Republic of Korea
| | - Junghwan Choi
- Txinno Bioscience Inc., Yongin 16942, Republic of Korea
| | - Sungjoon Kim
- Txinno Bioscience Inc., Yongin 16942, Republic of Korea
| | - Nam-Jung Kim
- Department of Fundamental Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Duck-Hyung Lee
- Department of Chemistry, Sogang University, Seoul 04107, Republic of Korea
| | - Chan Sun Park
- Txinno Bioscience Inc., Yongin 16942, Republic of Korea
| | - Seo-Jung Han
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Sanghee Lee
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department for HY-KIST Bio-convergence, Hanyang University, Seoul 04763, Republic of Korea
| | - Junwon Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| |
Collapse
|
10
|
Lin H, Zhang R, Xiang H, Lin X, Huang X, Chen J, Zhou L, Zhang Z, Li Y. A Non-Nucleotide STING Agonist MSA-2 Synergized with Manganese in Enhancing STING Activation to Elicit Potent Anti-RNA Virus Activity in the Cells. Viruses 2023; 15:2138. [PMID: 38005816 PMCID: PMC10675287 DOI: 10.3390/v15112138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 11/26/2023] Open
Abstract
Both Manganese (Mn2+) and MSA-2 can activate the downstream signal pathway through stimulator of interferon genes (STING) and induce the expression of type I interferon, which is important for hosts to protect against DNA viruses. However, its effect on RNA viruses remains unknown. In this study, we used Seneca Valley virus (SVV) as a model RNA virus to investigate the inhibitory effects of Mn2+ and MSA-2 on the virus replication in the porcine cells (PK-15 cells). The results showed that both MSA-2 and Mn2+ were able to inhibit the SVV replication in PK-15 cells. The combination of MAS-2 and Mn2+ could confer better protection against SVV. Further studies showed that MSA-2 and Mn2+ could activate TBK1, IRF3 and NFκB through STING and induce the expression of IFN-β, IL-6 and TNF-α. The present study confirmed that MSA-2 synergized with Mn2+ in STING activation to generate a better antiviral effect in vitro, which would be helpful for the further development of effective antiviral drugs in the future.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Zhidong Zhang
- Key Laboratory of Animal Medicine of Sichuan Province, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610093, China
| | - Yanmin Li
- Key Laboratory of Animal Medicine of Sichuan Province, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610093, China
| |
Collapse
|
11
|
Kolypetri P, Weiner HL. Monocyte regulation by gut microbial signals. Trends Microbiol 2023; 31:1044-1057. [PMID: 37271658 PMCID: PMC10524398 DOI: 10.1016/j.tim.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/06/2023]
Abstract
Monocytes are innate immune cells that sense environmental changes and participate in the immunoregulation of autoimmune, neurologic, cardiovascular, and metabolic diseases as well as cancer. Recent studies have suggested that the gut microbiome shapes the biology of monocytes via microbial signals at extraintestinal sites. Interestingly, in chronic diseases, communication between microbial signals and monocytes can either promote or inhibit disease activity, suggesting that some of these pathways can be harnessed for clinical therapies. In this review, we discuss the newer concepts of regulation of monocyte homeostasis and function by gut microbial signals during steady state and inflammation. We also highlight the therapeutic potential of microbial signal-based approaches for modulation in the context of various diseases.
Collapse
Affiliation(s)
- Panayota Kolypetri
- Department of Neurology, Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Howard L Weiner
- Department of Neurology, Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
12
|
Kumar V, Bauer C, Stewart JH. Targeting cGAS/STING signaling-mediated myeloid immune cell dysfunction in TIME. J Biomed Sci 2023; 30:48. [PMID: 37380989 PMCID: PMC10304357 DOI: 10.1186/s12929-023-00942-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023] Open
Abstract
Myeloid immune cells (MICs) are potent innate immune cells serving as first responders to invading pathogens and internal changes to cellular homeostasis. Cancer is a stage of altered cellular homeostasis that can originate in response to different pathogens, chemical carcinogens, and internal genetic/epigenetic changes. MICs express several pattern recognition receptors (PRRs) on their membranes, cytosol, and organelles, recognizing systemic, tissue, and organ-specific altered homeostasis. cGAS/STING signaling is a cytosolic PRR system for identifying cytosolic double-stranded DNA (dsDNA) in a sequence-independent but size-dependent manner. The longer the cytosolic dsDNA size, the stronger the cGAS/STING signaling activation with increased type 1 interferon (IFN) and NF-κB-dependent cytokines and chemokines' generation. The present article discusses tumor-supportive changes occurring in the tumor microenvironment (TME) or tumor immune microenvironment (TIME) MICs, specifically emphasizing cGAS/STING signaling-dependent alteration. The article further discusses utilizing MIC-specific cGAS/STING signaling modulation as critical tumor immunotherapy to alter TIME.
Collapse
Affiliation(s)
- Vijay Kumar
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA, 70012, USA.
| | - Caitlin Bauer
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA, 70012, USA
| | - John H Stewart
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA, 70012, USA.
- Louisiana Children's Medical Center Cancer Center, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA, 70012, USA.
- Surgery, Section of Surgical Oncology, Louisiana State University New Orleans-Louisiana Children's Medical Center Cancer Center, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA, 70012, USA.
| |
Collapse
|
13
|
cGAS-STING signalling in cancer: striking a balance with chromosomal instability. Biochem Soc Trans 2023; 51:539-555. [PMID: 36876871 DOI: 10.1042/bst20220838] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 03/07/2023]
Abstract
Chromosomal instability (CIN) is a hallmark of cancer that drives tumour evolution. It is now recognised that CIN in cancer leads to the constitutive production of misplaced DNA in the form of micronuclei and chromatin bridges. These structures are detected by the nucleic acid sensor cGAS, leading to the production of the second messenger 2'3'-cGAMP and activation of the critical hub of innate immune signalling STING. Activation of this immune pathway should instigate the influx and activation of immune cells, resulting in the eradication of cancer cells. That this does not universally occur in the context of CIN remains an unanswered paradox in cancer. Instead, CIN-high cancers are notably adept at immune evasion and are highly metastatic with typically poor outcomes. In this review, we discuss the diverse facets of the cGAS-STING signalling pathway, including emerging roles in homeostatic processes and their intersection with genome stability regulation, its role as a driver of chronic pro-tumour inflammation, and crosstalk with the tumour microenvironment, which may collectively underlie its apparent maintenance in cancers. A better understanding of the mechanisms whereby this immune surveillance pathway is commandeered by chromosomally unstable cancers is critical to the identification of new vulnerabilities for therapeutic exploitation.
Collapse
|