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Zhao L, Liao M, Li L, Chen L, Zhang T, Li R. Cadmium activates the innate immune system through the AIM2 inflammasome. Chem Biol Interact 2024; 399:111122. [PMID: 38944328 DOI: 10.1016/j.cbi.2024.111122] [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: 09/16/2023] [Revised: 06/11/2024] [Accepted: 06/27/2024] [Indexed: 07/01/2024]
Abstract
Cadmium (Cd) is a widely used heavy metal and has recently been recognized as a possible source of human toxicity due to its ability to accumulate in organs. Accumulation of heavy metals has several adverse effects, including inducing inflammation, in multiple organs, such as the testis. However, how Cd ions are sensed by host cells and how tissue inflammation eventually occurs remains unclear. Here, we show that Cd activates the AIM2 inflammasome by mediating genomic DNA release into the cytoplasm after DNA damage via oxidative stress, to trigger IL-1β secretion and pyroptosis. Specifically, the toxicity effects induced by Cd in cells were prevented by melatonin, which served as an antagonist of oxidative stress. Accordingly, in a mouse model, Cd-induced inflammation in the testis and consequential male reproductive dysfunction were effectively reversed by melatonin. Thus, our results suggest a function of AIM2 in Cd-mediated testis inflammation and identify AIM2 as a major pattern recognition receptor in response to heavy metal Cd ions.
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Affiliation(s)
- Letian Zhao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, China
| | - Mingxing Liao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, China
| | - Lianbing Li
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, China
| | - Linbo Chen
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, China
| | - Tianfeng Zhang
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, China.
| | - Renyan Li
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China; Hunan Provincial Key Laboratory of the Traditional Chinese Medicine Agricultural Biogenomics, Changsha Medical University, Hunan, 410219, China.
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2
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Liu A, Wen T, Ding L, Qin Y, Li C, Lei M, Zhu Y. Proteasome inhibitors FHND6091 enhance the ability of NK cells to kill tumor cells through multiple mechanisms. Eur J Pharmacol 2024; 977:176716. [PMID: 38849039 DOI: 10.1016/j.ejphar.2024.176716] [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: 12/15/2023] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/09/2024]
Abstract
The immune system has a strong connection to tumors. When a tumor cell is recognized as an abnormal cell by the immune system, the immune system may initiate an immune response to kill the tumor cell. In this study, RNA sequencing was performed on multiple myeloma (MM) cells treated with the proteasome inhibitor FHND6091. The transcriptional changes induced by FHND6091 in RPMI8226 cells aligned notably with immune response activation and results indicated upregulation of cGAS-STING pathway-related genes in the FHND6091-treated group. In vivo and in vitro experiments had demonstrated that FHND6091 stimulated the immunoreaction of MM cells via activation of the cyclic guanosine monophosphate-adenosine synthase/stimulator of interferon genes (cGAS-STING) pathway. This activation resulted in the generation of type-I interferons and the mobilization of natural killer (NK) cells. Notably, FHND6091 upregulated the levels of calreticulin and the protein ligands UL16-binding protein 2/5/6, MHC class I chain-related A (MICA), and MICB on the surface of MM cells. Subsequently, upon engaging with the surface activation receptors of NK cells, these ligands triggered NK cell activation, leading to the subsequent elimination of tumor cells. Thus, our findings elucidated the mechanism whereby FHND6091 exerted its immunotherapeutic activity as a STING agonist, enhancing the killing ability of NK cells against tumor cells.
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Affiliation(s)
- Amin Liu
- College of Science, Nanjing Forestry University, No.159 Longpan Road, Nanjing, 210037, PR China
| | - Tiantian Wen
- College of Life Science, Nanjing Normal University, No.1 Wenyuan Road, Nanjing, 210046, PR China
| | - Liming Ding
- Jiangsu Chia Tai Fenghai Pharmaceutical Co. Ltd., No.9 Weidi Road, Nanjing, 210046, PR China
| | - Yanru Qin
- College of Life Science, Nanjing Normal University, No.1 Wenyuan Road, Nanjing, 210046, PR China
| | - Chenhui Li
- Jiangsu Chia Tai Fenghai Pharmaceutical Co. Ltd., No.9 Weidi Road, Nanjing, 210046, PR China
| | - Meng Lei
- College of Science, Nanjing Forestry University, No.159 Longpan Road, Nanjing, 210037, PR China.
| | - Yongqiang Zhu
- College of Life Science, Nanjing Normal University, No.1 Wenyuan Road, Nanjing, 210046, PR China; Jiangsu Chia Tai Fenghai Pharmaceutical Co. Ltd., No.9 Weidi Road, Nanjing, 210046, PR China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, No.2 Xuelin Road, Nanjing, 210046, PR China.
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3
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Zannini L, Cardano M, Liberi G, Buscemi G. R-loops and impaired autophagy trigger cGAS-dependent inflammation via micronuclei formation in Senataxin-deficient cells. Cell Mol Life Sci 2024; 81:339. [PMID: 39120648 DOI: 10.1007/s00018-024-05380-3] [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: 04/11/2024] [Revised: 07/17/2024] [Accepted: 07/23/2024] [Indexed: 08/10/2024]
Abstract
Senataxin is an evolutionarily conserved DNA/RNA helicase, whose dysfunctions are linked to neurodegeneration and cancer. A main activity of this protein is the removal of R-loops, which are nucleic acid structures capable to promote DNA damage and replication stress. Here we found that Senataxin deficiency causes the release of damaged DNA into extranuclear bodies, called micronuclei, triggering the massive recruitment of cGAS, the apical sensor of the innate immunity pathway, and the downstream stimulation of interferon genes. Such cGAS-positive micronuclei are characterized by defective membrane envelope and are particularly abundant in cycling cells lacking Senataxin, but not after exposure to a DNA breaking agent or in absence of the tumor suppressor BRCA1 protein, a partner of Senataxin in R-loop removal. Micronuclei with a discontinuous membrane are normally cleared by autophagy, a process that we show is impaired in Senataxin-deficient cells. The formation of Senataxin-dependent inflamed micronuclei is promoted by the persistence of nuclear R-loops stimulated by the DSIF transcription elongation complex and the engagement of EXO1 nuclease activity on nuclear DNA. Coherently, high levels of EXO1 result in poor prognosis in a subset of tumors lacking Senataxin expression. Hence, R-loop homeostasis impairment, together with autophagy failure and unscheduled EXO1 activity, elicits innate immune response through micronuclei formation in cells lacking Senataxin.
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Affiliation(s)
- Laura Zannini
- Istituto di Genetica Molecolare "Luigi Luca Cavalli-Sforza", CNR, Pavia, 27100, Italy
| | - Miriana Cardano
- Istituto di Genetica Molecolare "Luigi Luca Cavalli-Sforza", CNR, Pavia, 27100, Italy
| | - Giordano Liberi
- Istituto di Genetica Molecolare "Luigi Luca Cavalli-Sforza", CNR, Pavia, 27100, Italy.
| | - Giacomo Buscemi
- Istituto di Genetica Molecolare "Luigi Luca Cavalli-Sforza", CNR, Pavia, 27100, Italy.
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4
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Yoshioka Y, Huang Y, Jin X, Ngo KX, Kumaki T, Jin M, Toyoda S, Takayama S, Inotsume M, Fujita K, Homma H, Ando T, Tanaka H, Okazawa H. PQBP3 prevents senescence by suppressing PSME3-mediated proteasomal Lamin B1 degradation. EMBO J 2024:10.1038/s44318-024-00192-4. [PMID: 39103492 DOI: 10.1038/s44318-024-00192-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/12/2024] [Accepted: 07/22/2024] [Indexed: 08/07/2024] Open
Abstract
Senescence of nondividing neurons remains an immature concept, with especially the regulatory molecular mechanisms of senescence-like phenotypes and the role of proteins associated with neurodegenerative diseases in triggering neuronal senescence remaining poorly explored. In this study, we reveal that the nucleolar polyglutamine binding protein 3 (PQBP3; also termed NOL7), which has been linked to polyQ neurodegenerative diseases, regulates senescence as a gatekeeper of cytoplasmic DNA leakage. PQBP3 directly binds PSME3 (proteasome activator complex subunit 3), a subunit of the 11S proteasome regulator complex, decreasing PSME3 interaction with Lamin B1 and thereby preventing Lamin B1 degradation and senescence. Depletion of endogenous PQBP3 causes nuclear membrane instability and release of genomic DNA from the nucleus to the cytosol. Among multiple tested polyQ proteins, ataxin-1 (ATXN1) partially sequesters PQBP3 to inclusion bodies, reducing nucleolar PQBP3 levels. Consistently, knock-in mice expressing mutant Atxn1 exhibit decreased nuclear PQBP3 and a senescence phenotype in Purkinje cells of the cerebellum. Collectively, these results suggest homologous roles of the nucleolar protein PQBP3 in cellular senescence and neurodegeneration.
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Affiliation(s)
- Yuki Yoshioka
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yong Huang
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Xiaocen Jin
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kien Xuan Ngo
- Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Tomohiro Kumaki
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Meihua Jin
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Saori Toyoda
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Department of Psychiatry and Behavioral Sciences, Tokyo Medical and Dental University Graduate School, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Sumire Takayama
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Maiko Inotsume
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kyota Fujita
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Research Center for Child Mental Development, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Hidenori Homma
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Toshio Ando
- Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Hikari Tanaka
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hitoshi Okazawa
- Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
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5
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Kiraz A, Eciroglu H, Altin-Celik P, Donmez-Altuntas H. The increased chromosomal DNA damage in patients with Familial Mediterranean Fever. Biotech Histochem 2024:1-8. [PMID: 39092615 DOI: 10.1080/10520295.2024.2383960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024] Open
Abstract
Familial Mediterranean Fever (FMF) is an inherited autoinflammatory disease. In this study, we aimed to assess chromosomal DNA damage and cell proliferation by using cytokinesis-block micronucleus cytome (CBMN-cyt) assay in the peripheral blood lymphocytes of untreated FMF patients carrying M694V and R202Q mutations, which are the most common MEFV gene mutations in Turkish society. The study included 20 untreated FMF patients with M694V and R202Q mutations and 20 healthy individuals of similar age and sex as the control group. Micronucleus (MN), nucleoplasmic bridges (NPBs), and nuclear buds (NBUDs) were scored in the obtained bi-nucleated (BN) cells. Additionally, the nuclear division index (NDI) was calculated using the scores of mononuclear, binuclear, and multinuclear cells. We found that MN and NPBs frequencies in FMF patients were significantly higher than in controls, and number of metaphases was significantly lower (respectively, p < 0.05, p < 0.01, and p < 0.01). However, there was no significant difference in NBUDs frequencies and NDI values between FMF patients and controls (p > 0.05). Our study is the first to evaluate FMF patients' lymphocytes using the CBMN-cyt assay, as no previous research has been found in this respect. Increased MN and NPB frequencies may be useful as biomarkers for chromosomal DNA damage, and may indicate a potential for elevated cancer risk in untreated FMF patients.
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Affiliation(s)
- Aslihan Kiraz
- Department of Medical Genetics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Hamiyet Eciroglu
- Department of Medical Services and Techniques, Health Services Vocational School, Alanya Alaaddin Keykubat University, Antalya, Turkey
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Pınar Altin-Celik
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Wang L, Cao L, Li Z, Shao Z, Chen X, Huang Z, He X, Zheng J, Liu L, Jia XM, Xiao H. ATP-elicited Cation Fluxes Promote Volume-regulated Anion Channel LRRC8/VRAC Transport cGAMP for Antitumor Immunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:347-361. [PMID: 38847616 DOI: 10.4049/jimmunol.2300812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/20/2024] [Indexed: 07/17/2024]
Abstract
The cyclic GMP-AMP synthase (cGAS)-stimulator of IFN genes (STING) pathway is instrumental to antitumor immunity, yet the underlying molecular and cellular mechanisms are complex and still unfolding. A new paradigm suggests that cancer cells' cGAS-synthesized cGAMP can be transferred to tumor-infiltrating immune cells, eliciting STING-dependent IFN-β response for antitumor immunity. Nevertheless, how the tumor microenvironment may shape this process remains unclear. In this study, we found that extracellular ATP, an immune regulatory molecule widely present in the tumor microenvironment, can potentiate cGAMP transfer, thereby boosting the STING signaling and IFN-β response in murine macrophages and fibroblasts. Notably, genetic ablation or chemical inhibition of murine volume-regulation anion channel LRRC8/volume-regulated anion channel (VRAC), a recently identified cGAMP transporter, abolished ATP-potentiated cGAMP transfer and STING-dependent IFN-β response, revealing a crucial role of LRRC8/VRAC in the cross-talk of extracellular ATP and cGAMP. Mechanistically, ATP activation of the P2X family receptors triggered Ca2+ influx and K+ efflux, promoting reactive oxygen species production. Moreover, ATP-evoked K+ efflux alleviated the phosphorylation of VRAC's obligate subunit LRRC8A/SWELL1 on S174. Mutagenesis studies indicated that the phosphorylation of S174 on LRRC8A could act as a checkpoint for VRAC in the steady state and a rheostat of ATP responsiveness. In an MC38-transplanted tumor model, systemically blocking CD39 and ENPP1, hydroxylases of extracellular ATP and cGAMP, respectively, elevated antitumor NK, NKT, and CD8+ T cell responses and restrained tumor growth in mice. Altogether, this study establishes a crucial role of ATP in facilitating LRRC8/VRAC transport cGAMP in the tumor microenvironment and provides new insight into harnessing cGAMP transfer for antitumor immunity.
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Affiliation(s)
- Li Wang
- Clinical Medicine Scientific and Technical Innovation Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Limin Cao
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Zhihong Li
- State Key Laboratory of New Drug and Pharmaceutical process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Zhugui Shao
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Xia Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zhicheng Huang
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoxiao He
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junke Zheng
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Liu
- State Key Laboratory of New Drug and Pharmaceutical process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Xin-Ming Jia
- Clinical Medicine Scientific and Technical Innovation Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Xiao
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
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Chan FF, Yuen VWH, Shen J, Chin DWC, Law CT, Wong BPY, Chan CYK, Cheu JWS, Ng IOL, Wong CCL, Wong CM. Inhibition of CAF-1 histone chaperone complex triggers cytosolic DNA and dsRNA sensing pathways and induces intrinsic immunity of hepatocellular carcinoma. Hepatology 2024; 80:295-311. [PMID: 38051950 DOI: 10.1097/hep.0000000000000709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 11/07/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND AND AIMS Chromatin assembly factor 1 (CAF-1) is a replication-dependent epigenetic regulator that controls cell cycle progression and chromatin dynamics. In this study, we aim to investigate the immunomodulatory role and therapeutic potential of the CAF-1 complex in HCC. APPROACH AND RESULTS CAF-1 complex knockout cell lines were established using the CRISPR/Cas9 system. The effects of CAF-1 in HCC were studied in HCC cell lines, nude mice, and immunocompetent mice. RNA-sequencing, ChIP-Seq, and assay for transposase accessible chromatin with high-throughput sequencing (ATAC-Seq) were used to explore the changes in the epigenome and transcriptome. CAF-1 complex was significantly upregulated in human and mouse HCCs and was associated with poor prognosis in patients with HCC. Knockout of CAF-1 remarkably suppressed HCC growth in both in vitro and in vivo models. Mechanistically, depletion of CAF-1 induced replicative stress and chromatin instability, which eventually led to cytoplasmic DNA leakage as micronuclei. Also, chromatin immunoprecipitation sequencing analyses revealed a massive H3.3 histone variant replacement upon CAF-1 knockout. Enrichment of euchromatic H3.3 increased chromatin accessibility and activated the expression of endogenous retrovirus elements, a phenomenon known as viral mimicry. However, cytosolic micronuclei and endogenous retroviruses are recognized as ectopic elements by the stimulator of interferon genes and dsRNA viral sensing pathways, respectively. As a result, the knockout of CAF-1 activated inflammatory response and antitumor immune surveillance and thereby significantly enhanced the anticancer effect of immune checkpoint inhibitors in HCC. CONCLUSIONS Our findings suggest that CAF-1 is essential for HCC development; targeting CAF-1 may awaken the anticancer immune response and may work cooperatively with immune checkpoint inhibitor treatment in cancer therapy.
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Affiliation(s)
- For-Fan Chan
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Vincent Wai-Hin Yuen
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Jialing Shen
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Don Wai-Ching Chin
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Cheuk-Ting Law
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Bowie Po-Yee Wong
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Cerise Yuen-Ki Chan
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Jacinth Wing-Sum Cheu
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Irene Oi-Lin Ng
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Carmen Chak-Lui Wong
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Chun-Ming Wong
- State Key Laboratory of Liver Research, Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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Oike T, Okuda K, Haruna S, Shibata A, Hayashi R, Isono M, Tateno K, Kubo N, Uchiyama A, Motegi SI, Ohno T, Uchihara Y, Kato Y, Shibata A. Exacerbated Inflammatory Gene Expression After Impaired G2/M-Checkpoint Arrest in Fibroblasts Derived From a Patient Exhibiting Severe Adverse Effects. Adv Radiat Oncol 2024; 9:101530. [PMID: 38993194 PMCID: PMC11238256 DOI: 10.1016/j.adro.2024.101530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/25/2024] [Indexed: 07/13/2024] Open
Abstract
Purpose Recent radiation therapy (RT), such as intensity modulated radiation therapy and particle RT, has improved the concentration of the radiation field targeting tumors. However, severe adverse effects still occur, possibly due to genetic factors in patients. We aimed to investigate the mechanism of exacerbated inflammation during RT. Methods and Materials Dermal fibroblasts derived from a patient with severe inflammatory adverse effects during RT were compared with 2 normal human dermal fibroblasts. Micronuclei formation, G2/M-checkpoint arrest, DNA damage signaling and repair, and inflammatory gene expression were comprehensively examined. Results We found greater micronuclei formation in radiation-sensitive fibroblasts (RS-Fs) after ionizing radiation (IR). RS-Fs exhibited premature G2/M-checkpoint release after IR, which triggers micronuclei formation because RS-Fs undergo mitosis with unrepaired DNA double-strand breaks (DSBs). Additionally, we found that DSB end-resection and activation of the ATR-Chk1 pathway were impaired in RS-Fs after IR. Consistent with the increase in the formation of micronuclei, which can deliver cytosolic nucleic acids resulting in an innate immune response, the expression of genes associated with inflammatory responses was highly upregulated in RS-Fs after IR. Conclusions Although this is a single case of RT-dependent adverse effect, our findings suggest that impaired G2/M-checkpoint arrest due to the lack of DSB end-resection and activation of the ATR-Chk1 pathway causes exacerbated inflammation during RT; therefore, genes involved in G2/M-checkpoint arrest may be a predictive marker for unexpected inflammatory responses in RT.
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Affiliation(s)
- Takahiro Oike
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma, Japan
- Gunma University Heavy Ion Medical Center, Showa-machi, Maebashi, Gunma, Japan
| | - Ken Okuda
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Shunji Haruna
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Akiko Shibata
- Gunma University Heavy Ion Medical Center, Showa-machi, Maebashi, Gunma, Japan
| | - Ryota Hayashi
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Mayu Isono
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Kohei Tateno
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Showa-machi, Maebashi, Japan
| | - Nobuteru Kubo
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma, Japan
- Gunma University Heavy Ion Medical Center, Showa-machi, Maebashi, Gunma, Japan
| | - Akihiko Uchiyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma, Japan
| | - Sei-Ichiro Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma, Japan
| | - Tatsuya Ohno
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma, Japan
- Gunma University Heavy Ion Medical Center, Showa-machi, Maebashi, Gunma, Japan
| | - Yuki Uchihara
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Yu Kato
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
| | - Atsushi Shibata
- Division of Molecular Oncological Pharmacy, Shibakoen, Minato-ku, Tokyo, Japan
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9
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Zych MG, Hatch EM. Small spaces, big problems: The abnormal nucleoplasm of micronuclei and its consequences. Curr Opin Struct Biol 2024; 87:102839. [PMID: 38763098 DOI: 10.1016/j.sbi.2024.102839] [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: 12/22/2023] [Revised: 03/29/2024] [Accepted: 04/26/2024] [Indexed: 05/21/2024]
Abstract
Micronuclei (MN) form from missegregated chromatin that recruits its own nuclear envelope during mitotic exit and are a common consequence of chromosomal instability. MN are unstable due to errors in nuclear envelope organization and frequently rupture, leading to loss of compartmentalization, loss of nuclear functions, and major changes in genome stability and gene expression. However, recent work found that, even prior to rupture, nuclear processes can be severely defective in MN, which may contribute to rupture-associated defects and have lasting consequences for chromatin structure and function. In this review we discuss work that highlights nuclear function defects in intact MN, including their mechanisms and consequences, and how biases in chromosome missegregation into MN may affect the penetrance of these defects. Illuminating the nuclear environment of MN demonstrates that MN formation alone has major consequences for both the genome and cell and provides new insight into how nuclear content is regulated.
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Affiliation(s)
- Molly G Zych
- Molecular and Cellular Biology PhD Program, University of Washington, Seattle, WA, USA; Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA. https://twitter.com/ZychMolly
| | - Emily M Hatch
- Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
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10
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Stavgiannoudaki I, Goulielmaki E, Garinis GA. Broken strands, broken minds: Exploring the nexus of DNA damage and neurodegeneration. DNA Repair (Amst) 2024; 140:103699. [PMID: 38852477 DOI: 10.1016/j.dnarep.2024.103699] [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: 12/15/2023] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/11/2024]
Abstract
Neurodegenerative disorders are primarily characterized by neuron loss progressively leading to cognitive decline and the manifestation of incurable and debilitating conditions, such as Alzheimer's, Parkinson's, and Huntington's diseases. Loss of genome maintenance causally contributes to age-related neurodegeneration, as exemplified by the premature appearance of neurodegenerative features in a growing family of human syndromes and mice harbouring inborn defects in DNA repair. Here, we discuss the relevance of persistent DNA damage, key DNA repair mechanisms and compromised genome integrity in age-related neurodegeneration highlighting the significance of investigating these connections to pave the way for the development of rationalized intervention strategies aimed at delaying the onset of neurodegenerative disorders and promoting healthy aging.
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Affiliation(s)
- Ioanna Stavgiannoudaki
- Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology-Hellas, Crete, Heraklion, Greece; Department of Biology, University of Crete, Crete, Heraklion, Greece
| | - Evi Goulielmaki
- Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology-Hellas, Crete, Heraklion, Greece
| | - George A Garinis
- Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology-Hellas, Crete, Heraklion, Greece; Department of Biology, University of Crete, Crete, Heraklion, Greece.
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11
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Técher H. T-Rex escaped from the cytosolic park: Re-thinking the impact of TREX1 exonuclease deficiencies on genomic stability. Bioessays 2024; 46:e2400066. [PMID: 38837436 DOI: 10.1002/bies.202400066] [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: 03/18/2024] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
The Three Prime Repair Exonuclease 1 (TREX1) has been implicated in several pathologies characterized by chronic and inborn inflammation. Aberrant innate immunity caused by DNA sensing through the cGAS-STING pathway has been proposed to play a major role in the etiology of these interferonopathies. However, the molecular source of this DNA sensing and the possible involvement of TREX1 in genome (in)stability remains poorly understood. Recent findings reignite the debate about the cellular functions performed by TREX1 nuclease, notably in chromosome biology and stability. Here I put into perspective recent findings that suggest that TREX1 is at the crossroads of DNA damage response and inflammation in different pathological contexts.
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Affiliation(s)
- Hervé Técher
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging of Nice - IRCAN, Nice, France
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12
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Zhang JN, Dong MM, Cao W, Chen HG, Gu HY, Feng YL, Zhang EF, He JS, Liu SC, Xie AY, Cai Z. Disruption of DNA-PKcs-mediated cGAS retention on damaged chromatin potentiates DNA damage-inducing agent-induced anti-multiple myeloma activity. Br J Cancer 2024; 131:430-443. [PMID: 38877108 PMCID: PMC11300664 DOI: 10.1038/s41416-024-02742-3] [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: 09/06/2023] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Targeting DNA damage repair factors, such as DNA-dependent protein kinase catalytic subunit (DNA-PKcs), may offer an opportunity for effective treatment of multiple myeloma (MM). In combination with DNA damage-inducing agents, this strategy has been shown to improve chemotherapies partially via activation of cGAS-STING pathway by an elevated level of cytosolic DNA. However, as cGAS is primarily sequestered by chromatin in the nucleus, it remains unclear how cGAS is released from chromatin and translocated into the cytoplasm upon DNA damage, leading to cGAS-STING activation. METHODS We examined the role of DNA-PKcs inhibition on cGAS-STING-mediated MM chemosensitivity by performing mass spectrometry and mechanism study. RESULTS Here, we found DNA-PKcs inhibition potentiated DNA damage-inducing agent doxorubicin-induced anti-MM effect by activating cGAS-STING signaling. The cGAS-STING activation in MM cells caused cell death partly via IRF3-NOXA-BAK axis and induced M1 polarization of macrophages. Moreover, this activation was not caused by defective classical non-homologous end joining (c-NHEJ). Instead, upon DNA damage induced by doxorubicin, inhibition of DNA-PKcs promoted cGAS release from cytoplasmic chromatin fragments and increased the amount of cytosolic cGAS and DNA, activating cGAS-STING. CONCLUSIONS Inhibition of DNA-PKcs could improve the efficacy of doxorubicin in treatment of MM by de-sequestrating cGAS in damaged chromatin.
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Affiliation(s)
- Jin-Na Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Institute of Translational Medicine, Zhejiang University School of Medicine and Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
| | - Meng-Meng Dong
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Institute of Translational Medicine, Zhejiang University School of Medicine and Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
| | - Wen Cao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hao-Guang Chen
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hui-Yao Gu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yi-Li Feng
- Institute of Translational Medicine, Zhejiang University School of Medicine and Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Key Laboratory of Laparoscopic Technology of Zhejiang Province, Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Hangzhou Qiantang Hospital, Hangzhou, Zhejiang, China
| | - En-Fan Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing-Song He
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Si-Cheng Liu
- Institute of Translational Medicine, Zhejiang University School of Medicine and Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Key Laboratory of Laparoscopic Technology of Zhejiang Province, Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Hangzhou Qiantang Hospital, Hangzhou, Zhejiang, China
| | - An-Yong Xie
- Institute of Translational Medicine, Zhejiang University School of Medicine and Zhejiang University Cancer Center, Hangzhou, Zhejiang, China.
- Key Laboratory of Laparoscopic Technology of Zhejiang Province, Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Hangzhou Qiantang Hospital, Hangzhou, Zhejiang, China.
| | - Zhen Cai
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China.
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13
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He M, Jiang H, Li S, Xue M, Wang H, Zheng C, Tong J. The crosstalk between DNA-damage responses and innate immunity. Int Immunopharmacol 2024; 140:112768. [PMID: 39088918 DOI: 10.1016/j.intimp.2024.112768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/14/2024] [Accepted: 07/22/2024] [Indexed: 08/03/2024]
Abstract
DNA damage is typically caused during cell growth by DNA replication stress or exposure to endogenous or external toxins. The accumulation of damaged DNA causes genomic instability, which is the root cause of many serious disorders. Multiple cellular organisms utilize sophisticated signaling pathways against DNA damage, collectively known as DNA damage response (DDR) networks. Innate immune responses are activated following cellular abnormalities, including DNA damage. Interestingly, recent studies have indicated that there is an intimate relationship between the DDR network and innate immune responses. Diverse kinds of cytosolic DNA sensors, such as cGAS and STING, recognize damaged DNA and induce signals related to innate immune responses, which link defective DDR to innate immunity. Moreover, DDR components operate in immune signaling pathways to induce IFNs and/or a cascade of inflammatory cytokines via direct interactions with innate immune modulators. Consistently, defective DDR factors exacerbate the innate immune imbalance, resulting in severe diseases, including autoimmune disorders and tumorigenesis. Here, the latest progress in understanding crosstalk between the DDR network and innate immune responses is reviewed. Notably, the dual function of innate immune modulators in the DDR network may provide novel insights into understanding and developing targeted immunotherapies for DNA damage-related diseases, even carcinomas.
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Affiliation(s)
- Mei He
- College of Life Sciences, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Hua Jiang
- Department of Hematology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Shun Li
- Department of Immunology, School of Basic Medical Sciences, Chengdu Medical College, Chengdu 610041, China
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China.
| | - Huiqing Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China.
| | - Chunfu Zheng
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada.
| | - Jie Tong
- College of Life Sciences, Hebei University, Baoding 071002, China.
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14
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Chen X, Agustinus AS, Li J, DiBona M, Bakhoum SF. Chromosomal instability as a driver of cancer progression. Nat Rev Genet 2024:10.1038/s41576-024-00761-7. [PMID: 39075192 DOI: 10.1038/s41576-024-00761-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2024] [Indexed: 07/31/2024]
Abstract
Chromosomal instability (CIN) refers to an increased propensity of cells to acquire structural and numerical chromosomal abnormalities during cell division, which contributes to tumour genetic heterogeneity. CIN has long been recognized as a hallmark of cancer, and evidence over the past decade has strongly linked CIN to tumour evolution, metastasis, immune evasion and treatment resistance. Until recently, the mechanisms by which CIN propels cancer progression have remained elusive. Beyond the generation of genomic copy number heterogeneity, recent work has unveiled additional tumour-promoting consequences of abnormal chromosome segregation. These mechanisms include complex chromosomal rearrangements, epigenetic reprogramming and the induction of cancer cell-intrinsic inflammation, emphasizing the multifaceted role of CIN in cancer.
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Affiliation(s)
- Xuelan Chen
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Albert S Agustinus
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Pharmacology Graduate Program, Weill Cornell Medicine, New York, NY, USA
| | - Jun Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Melody DiBona
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samuel F Bakhoum
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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15
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Li Y, Cui J, Liu L, Hambright WS, Gan Y, Zhang Y, Ren S, Yue X, Shao L, Cui Y, Huard J, Mu Y, Yao Q, Mu X. mtDNA release promotes cGAS-STING activation and accelerated aging of postmitotic muscle cells. Cell Death Dis 2024; 15:523. [PMID: 39039044 PMCID: PMC11263593 DOI: 10.1038/s41419-024-06863-8] [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: 11/16/2023] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/24/2024]
Abstract
The mechanism regulating cellular senescence of postmitotic muscle cells is still unknown. cGAS-STING innate immune signaling was found to mediate cellular senescence in various types of cells, including postmitotic neuron cells, which however has not been explored in postmitotic muscle cells. Here by studying the myofibers from Zmpste24-/- progeria aged mice [an established mice model for Hutchinson-Gilford progeria syndrome (HGPS)], we observed senescence-associated phenotypes in Zmpste24-/- myofibers, which is coupled with increased oxidative damage to mitochondrial DNA (mtDNA) and secretion of senescence-associated secretory phenotype (SASP) factors. Also, Zmpste24-/- myofibers feature increased release of mtDNA from damaged mitochondria, mitophagy dysfunction, and activation of cGAS-STING. Meanwhile, increased mtDNA release in Zmpste24-/- myofibers appeared to be related with increased VDAC1 oligomerization. Further, the inhibition of VDAC1 oligomerization in Zmpste24-/- myofibers with VBIT4 reduced mtDNA release, cGAS-STING activation, and the expression of SASP factors. Our results reveal a novel mechanism of innate immune activation-associated cellular senescence in postmitotic muscle cells in aged muscle, which may help identify novel sets of diagnostic markers and therapeutic targets for progeria aging and aging-associated muscle diseases.
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Affiliation(s)
- Ying Li
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Jie Cui
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Lei Liu
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - William S Hambright
- Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, CO, USA
| | - Yutai Gan
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, China
| | - Yajun Zhang
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Shifeng Ren
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Xianlin Yue
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Liwei Shao
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China
| | - Yan Cui
- Department of Orthopaedic Surgery, University of Texas Health Science Center, Houston, TX, USA
| | - Johnny Huard
- Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, CO, USA
| | - Yanling Mu
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China.
| | - Qingqiang Yao
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China.
| | - Xiaodong Mu
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, State Key Laboratory of Advanced Drug Delivery and Release Systems, Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan, Shandong, China.
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16
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Li C, Wang B, Tu J, Liu C, Wang Y, Chen J, Huang Y, Liu B, Yuan X. ATM inhibition enhance immunotherapy by activating STING signaling and augmenting MHC Class I. Cell Death Dis 2024; 15:519. [PMID: 39033176 PMCID: PMC11271473 DOI: 10.1038/s41419-024-06911-3] [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: 04/02/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
Accumulating evidence supports the concept that DNA damage response targeted therapies can improve antitumor immune response by increasing the immunogenicity of tumor cells and improving the tumor immune microenvironment. Ataxia telangiectasia mutated (ATM) is a core component of the DNA repair system. Although the ATM gene has a significant mutation rate in many human cancers, including colorectal, prostate, lung, and breast, it remains understudied compared with other DDR-involved molecules such as PARP and ATR. Here, we found that either gene knockout or drug intervention, ATM inhibition activated the cGAS/STING pathway and augmented MHC class I in CRC cells, and these effects could be amplified by radiation. Furthermore, we found that MHC class I upregulation induced by ATM inhibition is dependent on the activation of the NFκB/IRF1/NLRC5 pathway and independent of STING. Animal experiments have shown increasing infiltration and cytotoxic function of T cells and better survival in ATM-deficient tumors. This work indicated that ATM nonsense mutation predicted the clinical benefits of radiotherapy combined with immune checkpoint blockade for patients with CRC. It also provides a molecular mechanism rationale for ATM-targeted agents for patients with CRC.
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Affiliation(s)
- Chunya Li
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Boyu Wang
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingyao Tu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaofan Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Wang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junjie Chen
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongbiao Huang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Xianglin Yuan
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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17
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Hu T, Liu Y, Fleck J, King C, Schalk E, Zhang Z, Mehle A, Smith JA. Multiple unfolded protein response pathways cooperate to link cytosolic dsDNA release to stimulator of interferon gene activation. Front Immunol 2024; 15:1358462. [PMID: 39100663 PMCID: PMC11294172 DOI: 10.3389/fimmu.2024.1358462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 06/10/2024] [Indexed: 08/06/2024] Open
Abstract
The double-stranded DNA (dsDNA) sensor STING has been increasingly implicated in responses to "sterile" endogenous threats and pathogens without nominal DNA or cyclic di-nucleotide stimuli. Previous work showed an endoplasmic reticulum (ER) stress response, known as the unfolded protein response (UPR), activates STING. Herein, we sought to determine if ER stress generated a STING ligand, and to identify the UPR pathways involved. Induction of IFN-β expression following stimulation with the UPR inducer thapsigargin (TPG) or oxygen glucose deprivation required both STING and the dsDNA-sensing cyclic GMP-AMP synthase (cGAS). Furthermore, TPG increased cytosolic mitochondrial DNA, and immunofluorescence visualized dsDNA punctae in murine and human cells, providing a cGAS stimulus. N-acetylcysteine decreased IFN-β induction by TPG, implicating reactive oxygen species (ROS). However, mitoTEMPO, a mitochondrial oxidative stress inhibitor did not impact TPG-induced IFN. On the other hand, inhibiting the inositol requiring enzyme 1 (IRE1) ER stress sensor and its target transcription factor XBP1 decreased the generation of cytosolic dsDNA. iNOS upregulation was XBP1-dependent, and an iNOS inhibitor decreased cytosolic dsDNA and IFN-β, implicating ROS downstream of the IRE1-XBP1 pathway. Inhibition of the PKR-like ER kinase (PERK) pathway also attenuated cytoplasmic dsDNA release. The PERK-regulated apoptotic factor Bim was required for both dsDNA release and IFN-β mRNA induction. Finally, XBP1 and PERK pathways contributed to cytosolic dsDNA release and IFN-induction by the RNA virus, Vesicular Stomatitis Virus (VSV). Together, our findings suggest that ER stressors, including viral pathogens without nominal STING or cGAS ligands such as RNA viruses, trigger multiple canonical UPR pathways that cooperate to activate STING and downstream IFN-β via mitochondrial dsDNA release.
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Affiliation(s)
- Tiancheng Hu
- Department of Pharmacology and Toxicology, Rutgers University, New Brunswick, NJ, United States
| | - Yiping Liu
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Jeremy Fleck
- Department of Immunology and Microbiology, University of Colorado, Aurora, CO, United States
| | - Cason King
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, United States
| | - Elaine Schalk
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Zhenyu Zhang
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, United States
| | - Andrew Mehle
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, United States
| | - Judith A. Smith
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, United States
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18
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DiPeso L, Pendyala S, Huang HZ, Fowler DM, Hatch EM. Image-based identification and isolation of micronucleated cells to dissect cellular consequences. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.05.04.539483. [PMID: 37205341 PMCID: PMC10187275 DOI: 10.1101/2023.05.04.539483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Recent advances in isolating cells based on visual phenotypes have transformed our ability to identify the mechanisms and consequences of complex traits. Micronucleus (MN) formation is a frequent outcome of genome instability, triggers extensive disease-associated changes in genome structure and signaling coincident with MN rupture, and is almost exclusively defined by visual analysis. Automated MN detection in microscopy images has proved extremely challenging, limiting unbiased discovery of the mechanisms and consequences of MN formation and rupture. In this study we describe two new MN segmentation modules: a rapid and precise model for classifying micronucleated cells and their rupture status (VCS MN), and a robust model for accurate MN segmentation (MNFinder) from a broad range of microscopy images. As a proof-of-concept, we define the transcriptome of non-transformed human cells with intact or ruptured MN after inducing chromosome missegregation by combining VCS MN with photoactivation-based cell isolation and RNASeq. Surprisingly, we find that neither MN formation nor rupture triggers a unique transcriptional response. Instead, transcriptional changes are correlated with increased aneuploidy in these cell classes. Our MN segmentation modules overcome a significant challenge to reproducible MN quantification, and, joined with visual cell sorting, enable the application of powerful functional genomics assays, including pooled CRISPR screens and time-resolved analyses of cellular and genetic consequences, to a wide-range of questions in MN biology.
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Affiliation(s)
- Lucian DiPeso
- Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Molecular & Cellular Biology, University of Washington, Seattle, WA, USA
| | | | - Heather Z. Huang
- Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | | | - Emily M. Hatch
- Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
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19
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Monti M, Ferrari G, Gazzurelli L, Bugatti M, Facchetti F, Vermi W. Plasmacytoid dendritic cells at the forefront of anti-cancer immunity: rewiring strategies for tumor microenvironment remodeling. J Exp Clin Cancer Res 2024; 43:196. [PMID: 39020402 PMCID: PMC11253500 DOI: 10.1186/s13046-024-03121-9] [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: 05/10/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are multifaceted immune cells executing various innate immunological functions. Their first line of defence consists in type I interferons (I-IFN) production upon nucleic acids sensing through endosomal Toll-like receptor (TLR) 7- and 9-dependent signalling pathways. Type I IFNs are a class of proinflammatory cytokines that have context-dependent functions on cancer immunosurveillance and immunoediting. In the last few years, different studies have reported that pDCs are also able to sense cytosolic DNA through cGAS-STING (stimulator of interferon genes) pathway eliciting a potent I-IFN production independently of TLR7/9. Human pDCs are also endowed with direct effector functions via the upregulation of TRAIL and production of granzyme B, the latter modulated by cytokines abundant in cancer tissues. pDCs have been detected in a wide variety of human malignant neoplasms, including virus-associated cancers, recruited by chemotactic stimuli. Although the role of pDCs in cancer immune surveillance is still uncompletely understood, their spontaneous activation has been rarely documented; moreover, their presence in the tumor microenvironment (TME) has been associated with a tolerogenic phenotype induced by immunosuppressive cytokines or oncometabolites. Currently tested treatment options can lead to pDCs activation and disruption of the immunosuppressive TME, providing a relevant clinical benefit. On the contrary, the antibody-drug conjugates targeting BDCA-2 on immunosuppressive tumor-associated pDCs (TA-pDCs) could be proposed as novel immunomodulatory therapies to achieve disease control in patients with advance stage hematologic malignancies or solid tumors. This Review integrate recent evidence on the biology of pDCs and their pharmacological modulation, suggesting their relevant role at the forefront of cancer immunity.
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Affiliation(s)
- Matilde Monti
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - Giorgia Ferrari
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - Luisa Gazzurelli
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - Mattia Bugatti
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - Fabio Facchetti
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - William Vermi
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy.
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA.
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20
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Lv L, Zhang J, Wang Y, Liang H, Liu Q, Hu F, Li H, Su W, Zhang J, Chen R, Chen Z, Wang Z, Li J, Yan R, Yang M, Chang YN, Li J, Liang T, Xing G, Chen K. Boron Neutron Capture Therapy-Derived Extracellular Vesicles via DNA Accumulation Boost Antitumor Dendritic Cell Vaccine Efficacy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405158. [PMID: 39021327 DOI: 10.1002/advs.202405158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Indexed: 07/20/2024]
Abstract
Radiated tumor cell-derived extracellular vesicles (RT-EVs) encapsulate abundant DNA fragments from irradiated tumor cells, in addition to acting as integrators of multiple tumor antigens. Accumulating evidence indicates these DNA fragments from damaged cells are involved in downstream immune responses, but most of them are degraded in cells before incorporation into derived RT-EVs, thus the low abundance of DNA fragments limits immune responses of RT-EVs. Here, this study found that different radiations affected fates of DNA fragments in RT-EVs. Boron neutron capture therapy (BNCT) induced DNA accumulation in RT-EVs (BEVs) by causing more DNA breaks and DNA oxidation resisting nuclease degradation. This is attributed to the high-linear energy transfer (LET) properties of alpha particles from the neutron capture reaction of 10B. When being internalized by dendritic cells (DCs), BEVs activated the DNA sensing pathway, resulting in functional enhancements including antigen presentation, migration capacity, and cytokine secretion. After vaccination of the BEVs-educated DCs (BEV@BMDCs), the effector T cells significantly expanded and infiltrated into tumors, suggesting robust anti-tumor immune activation. BEV@BMDCs not only effectively inhibited the primary tumor growth and metastasis formation but also elicited long-term immune memory. In conclusion, a successful DC vaccine is provided as a promising candidate for tumor vaccine.
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Affiliation(s)
- Linwen Lv
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junzhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yujiao Wang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Haojun Liang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Qiuyang Liu
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Fan Hu
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Hao Li
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Wenxi Su
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Junhui Zhang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Ranran Chen
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Ziteng Chen
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Zhijie Wang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Jiacheng Li
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Ruyu Yan
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Mingxin Yang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Ya-Nan Chang
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Juan Li
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Tianjiao Liang
- Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Spallation Neutron Source Science Center, Dongguan, 523803, China
| | - Gengmei Xing
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
| | - Kui Chen
- CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, 19B YuquanLu, Shijingshan District, Beijing, 100049, China
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21
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McPherson A, Vázquez-García I, Myers MA, Zatzman M, Al-Rawi D, Weiner A, Freeman S, Mohibullah N, Satas G, Williams MJ, Ceglia N, Zhang AW, Li J, Lim JLP, Wu M, Choi S, Havasov E, Grewal D, Shi H, Kim M, Schwarz R, Kaufmann T, Dinh KN, Uhlitz F, Tran J, Wu Y, Patel R, Ramakrishnan S, Kim D, Clarke J, Green H, Ali E, DiBona M, Varice N, Kundra R, Broach V, Gardner GJ, Roche KL, Sonoda Y, Zivanovic O, Kim SH, Grisham RN, Liu YL, Viale A, Rusk N, Lakhman Y, Ellenson LH, Tavaré S, Aparicio S, Chi DS, Aghajanian C, Abu-Rustum NR, Friedman CF, Zamarin D, Weigelt B, Bakhoum SF, Shah SP. Ongoing genome doubling promotes evolvability and immune dysregulation in ovarian cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.11.602772. [PMID: 39071261 PMCID: PMC11275742 DOI: 10.1101/2024.07.11.602772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Whole-genome doubling (WGD) is a critical driver of tumor development and is linked to drug resistance and metastasis in solid malignancies. Here, we demonstrate that WGD is an ongoing mutational process in tumor evolution. Using single-cell whole-genome sequencing, we measured and modeled how WGD events are distributed across cellular populations within tumors and associated WGD dynamics with properties of genome diversification and phenotypic consequences of innate immunity. We studied WGD evolution in 65 high-grade serous ovarian cancer (HGSOC) tissue samples from 40 patients, yielding 29,481 tumor cell genomes. We found near-ubiquitous evidence of WGD as an ongoing mutational process promoting cell-cell diversity, high rates of chromosomal missegregation, and consequent micronucleation. Using a novel mutation-based WGD timing method, doubleTime , we delineated specific modes by which WGD can drive tumor evolution: (i) unitary evolutionary origin followed by significant diversification, (ii) independent WGD events on a pre-existing background of copy number diversity, and (iii) evolutionarily late clonal expansions of WGD populations. Additionally, through integrated single-cell RNA sequencing and high-resolution immunofluorescence microscopy, we found that inflammatory signaling and cGAS-STING pathway activation result from ongoing chromosomal instability and are restricted to tumors that remain predominantly diploid. This contrasted with predominantly WGD tumors, which exhibited significant quiescent and immunosuppressive phenotypic states. Together, these findings establish WGD as an evolutionarily 'active' mutational process that promotes evolvability and dysregulated immunity in late stage ovarian cancer.
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22
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Tong Z, Zou JP, Wang SY, Luo WW, Wang YY. Activation of the cGAS-STING-IRF3 Axis by Type I and II Interferons Contributes to Host Defense. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2308890. [PMID: 39004913 DOI: 10.1002/advs.202308890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 06/08/2024] [Indexed: 07/16/2024]
Abstract
Interferons (IFNs) activate JAK-STAT pathways to induce downstream effector genes for host defense against invaded pathogens and tumors. Here both type I (β) and II (γ) IFNs are shown that can activate the transcription factor IRF3 in parallel with STAT1. IRF3-deficiency impairs transcription of a subset of downstream effector genes induced by IFN-β and IFN-γ. Mechanistically, IFN-induced activation of IRF3 is dependent on the cGAS-STING-TBK1 axis. Both IFN-β and IFN-γ cause mitochondrial DNA release into the cytosol. In addition, IFNs induce JAK1-mediated tyrosine phosphorylation of cGAS at Y214/Y215, which is essential for its DNA binding activity and signaling. Furthermore, deficiency of cGAS, STING, or IRF3 impairs IFN-β- or IFN-γ-mediated antiviral and antitumor activities. The findings reveal a novel IRF3 activation pathway parallel with the canonical STAT1/2 activation pathways triggered by IFNs and provide an explanation for the pleiotropic roles of the cGAS-STING-IRF3 axis in host defense.
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Affiliation(s)
- Zhen Tong
- Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Bejing, 100049, China
| | - Jia-Peng Zou
- Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Bejing, 100049, China
| | - Su-Yun Wang
- Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Wei-Wei Luo
- Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Bejing, 100049, China
- Hubei Jiangxia Laboratory, Wuhan, Hubei, 430200, China
| | - Yan-Yi Wang
- Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Bejing, 100049, China
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23
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Gąssowska-Dobrowolska M, Olech-Kochańczyk G, Culmsee C, Adamczyk A. Novel Insights into Parkin-Mediated Mitochondrial Dysfunction and "Mito-Inflammation" in α-Synuclein Toxicity. The Role of the cGAS-STING Signalling Pathway. J Inflamm Res 2024; 17:4549-4574. [PMID: 39011416 PMCID: PMC11249072 DOI: 10.2147/jir.s468609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/22/2024] [Indexed: 07/17/2024] Open
Abstract
The prevalence of age-related neurodegenerative diseases, such as Parkinson's disease (PD) and related disorders continues to grow worldwide. Increasing evidence links intracellular inclusions of misfolded alpha-synuclein (α-syn) aggregates, so-called Lewy bodies (LB) and Lewy neuritis, to the progressive pathology of PD and other synucleinopathies. Our previous findings established that α-syn oligomers induce S-nitrosylation and deregulation of the E3-ubiquitin ligase Parkin, leading to mitochondrial disturbances in neuronal cells. The accumulation of damaged mitochondria as a consequence, together with the release of mitochondrial-derived damage-associated molecular patterns (mtDAMPs) could activate the innate immune response and induce neuroinflammation ("mito-inflammation"), eventually accelerating neurodegeneration. However, the molecular pathways that transmit pro-inflammatory signals from damaged mitochondria are not well understood. One of the proposed pathways could be the cyclic GMP-AMP synthase (cGAS) - stimulator of interferon genes (STING) (cGAS-STING) pathway, which plays a pivotal role in modulating the innate immune response. It has recently been suggested that cGAS-STING deregulation may contribute to the development of various pathological conditions. Especially, its excessive engagement may lead to neuroinflammation and appear to be essential for the development of neurodegenerative brain diseases, including PD. However, the precise molecular mechanisms underlying cGAS-STING pathway activation in PD and other synucleinopathies are not fully understood. This review focuses on linking mitochondrial dysfunction to neuroinflammation in these disorders, particularly emphasizing the role of the cGAS-STING signaling. We propose the cGAS-STING pathway as a critical driver of inflammation in α-syn-dependent neurodegeneration and hypothesize that cGAS-STING-driven "mito-inflammation" may be one of the key mechanisms promoting the neurodegeneration in PD. Understanding the molecular mechanisms of α-syn-induced cGAS-STING-associated "mito-inflammation" in PD and related synucleinopathies may contribute to the identification of new targets for the treatment of these disorders.
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Affiliation(s)
| | - Gabriela Olech-Kochańczyk
- Department of Cellular Signalling, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Carsten Culmsee
- Institute of Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany
- Center for Mind Brain and Behavior - CMBB, University of Marburg, Marburg, Germany
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
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24
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Wang SW, Zheng QY, Hong WF, Tang BF, Hsu SJ, Zhang Y, Zheng XB, Zeng ZC, Gao C, Ke AW, Du SS. Mechanism of immune activation mediated by genomic instability and its implication in radiotherapy combined with immune checkpoint inhibitors. Radiother Oncol 2024; 199:110424. [PMID: 38997092 DOI: 10.1016/j.radonc.2024.110424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 06/27/2024] [Accepted: 07/05/2024] [Indexed: 07/14/2024]
Abstract
Various genetic and epigenetic changes associated with genomic instability (GI), including DNA damage repair defects, chromosomal instability, and mitochondrial GI, contribute to development and progression of cancer. These alterations not only result in DNA leakage into the cytoplasm, either directly or through micronuclei, but also trigger downstream inflammatory signals, such as the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling pathway. Apart from directly inducing DNA damage to eliminate cancer cells, radiotherapy (RT) exerts its antitumor effects through intracellular DNA damage sensing mechanisms, leading to the activation of downstream inflammatory signaling pathways. This not only enables local tumor control but also reshapes the immune microenvironment, triggering systemic immune responses. The combination of RT and immunotherapy has emerged as a promising approach to increase the probability of abscopal effects, where distant tumors respond to treatment due to the systemic immunomodulatory effects. This review emphasizes the importance of GI in cancer biology and elucidates the mechanisms by which RT induces GI remodeling of the immune microenvironment. By elucidating the mechanisms of GI and RT-induced immune responses, we aim to emphasize the crucial importance of this approach in modern oncology. Understanding the impact of GI on tumor biological behavior and therapeutic response, as well as the possibility of activating systemic anti-tumor immunity through RT, will pave the way for the development of new treatment strategies and improve prognosis for patients.
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Affiliation(s)
- Si-Wei Wang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai 200030, China
| | - Qiu-Yi Zheng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Wei-Feng Hong
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Bu-Fu Tang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Shu-Jung Hsu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Yang Zhang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Xiao-Bin Zheng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Zhao-Chong Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China
| | - Chao Gao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai 200030, China.
| | - Ai-Wu Ke
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai 200030, China.
| | - Shi-Suo Du
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai 200030, China.
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25
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Ramos A, Bizri N, Novak E, Mollen K, Khan S. The role of cGAS in epithelial dysregulation in inflammatory bowel disease and gastrointestinal malignancies. Front Pharmacol 2024; 15:1409683. [PMID: 39050748 PMCID: PMC11266671 DOI: 10.3389/fphar.2024.1409683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 05/31/2024] [Indexed: 07/27/2024] Open
Abstract
The gastrointestinal tract is lined by an epithelial monolayer responsible for selective permeability and absorption, as well as protection against harmful luminal contents. Recognition of foreign or aberrant DNA within these epithelial cells is, in part, regulated by pattern recognition receptors such as cyclic GMP-AMP synthase (cGAS). cGAS binds double-stranded DNA from exogenous and endogenous sources, resulting in the activation of stimulator of interferon genes (STING) and a type 1 interferon response. cGAS is also implicated in non-canonical pathways involving the suppression of DNA repair and the upregulation of autophagy via interactions with PARP1 and Beclin-1, respectively. The importance of cGAS activation in the development and progression of inflammatory bowel disease and gastrointestinal cancers has been and continues to be explored. This review delves into the intricacies of the complex role of cGAS in intestinal epithelial inflammation and gastrointestinal malignancies, as well as recent therapeutic advances targeting cGAS pathways.
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Affiliation(s)
- Anna Ramos
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Nazih Bizri
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Elizabeth Novak
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Kevin Mollen
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Sidrah Khan
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
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26
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Haimovici A, Rupp V, Amer T, Moeed A, Weber A, Häcker G. The caspase-activated DNase promotes cellular senescence. EMBO J 2024:10.1038/s44318-024-00163-9. [PMID: 38977850 DOI: 10.1038/s44318-024-00163-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 06/15/2024] [Accepted: 06/19/2024] [Indexed: 07/10/2024] Open
Abstract
Cellular senescence is a response to many stressful insults. DNA damage is a consistent feature of senescent cells, but in many cases its source remains unknown. Here, we identify the cellular endonuclease caspase-activated DNase (CAD) as a critical factor in the initiation of senescence. During apoptosis, CAD is activated by caspases and cleaves the genomic DNA of the dying cell. The CAD DNase is also activated by sub-lethal signals in the apoptotic pathway, causing DNA damage in the absence of cell death. We show that sub-lethal signals in the mitochondrial apoptotic pathway induce CAD-dependent senescence. Inducers of cellular senescence, such as oncogenic RAS, type-I interferon, and doxorubicin treatment, also depend on CAD presence for senescence induction. By directly activating CAD experimentally, we demonstrate that its activity is sufficient to induce senescence in human cells. We further investigate the contribution of CAD to senescence in vivo and find substantially reduced signs of senescence in organs of ageing CAD-deficient mice. Our results show that CAD-induced DNA damage in response to various stimuli is an essential contributor to cellular senescence.
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Affiliation(s)
- Aladin Haimovici
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany.
| | - Valentin Rupp
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Tarek Amer
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Abdul Moeed
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Arnim Weber
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Georg Häcker
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany.
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany.
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27
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Chen Y, Yao L, Chen Q, Hu Y, Zhu X, Dai R, Chen X, Zeng Y, Zhu Y, Song D, Zhang Y. A retrospective study on the impact of radiotherapy on the survival outcomes of small cell lung cancer patients based on the SEER database. Sci Rep 2024; 14:15552. [PMID: 38969694 PMCID: PMC11226443 DOI: 10.1038/s41598-024-65314-8] [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: 11/23/2023] [Accepted: 06/19/2024] [Indexed: 07/07/2024] Open
Abstract
Small cell lung cancer (SCLC) patients exhibit significant heterogeneity in tumor burden, physical condition, and responses to initial treatment. This diversity in treatment responses can result in varying treatment outcomes. The primary objective of this study was to explore the patient demographics associated with improved survival outcomes through radiotherapy. Based on the SEER database, we identified 42,824 SCLC patients enrolled between 2004 and 2015. These patients were stratified into radiotherapy (n = 20,360) and non-radiotherapy groups (n = 22,464). We controlled for confounding factors using propensity score matching (PSM) analysis. Subsequently, Kaplan-Meier (KM) analysis was employed to evaluate the impact of radiotherapy on patients' overall survival (OS) and cancer-specific survival (CSS). Cancer-specific mortality was further analyzed using competitive risk models. Cox analysis was also conducted to examine additional variables potentially affecting the survival of SCLC patients. We identified a total of 42,824 eligible patients, and following PSM, 13,329 patients were successfully matched in both the radiotherapy and non-radiotherapy groups. The KM analysis showed that the median OS was 9 months in the radiotherapy group and 6 months in the non-radiotherapy group. The median CSS was 10 months in the radiotherapy group and 7 months in the non-radiotherapy group. The 5-year OS and 10-year OS rates were 6.2% versus 1.6% in the radiotherapy group and 2.6% versus 0.8% in the non-radiotherapy group (P < 0.001). Competitive risk analysis showed that cancer-specific mortality was significantly higher in the non-radiotherapy group than in the radiotherapy group (P < 0.001). Multivariate Cox analysis showed that the radiotherapy group (relative non-radiotherapy group) showed a significant positive effect on survival outcomes (OS: HR 0.658 95% CI [0.642, 0.675] P < 0.001; CSS: HR 0.662 95% CI [0.645, 0.679], P < 0.001). In addition, age, gender, race, primary tumor site, T stage, N stage, M stage, chemotherapy, and surgery were also considered as important predictors of SCLC outcome. The results of the subgroup analysis showed that the radiotherapy group showed a significant survival advantage regardless of age, sex, race, primary tumor site, M stage, chemotherapy, and surgery (P < 0.001). Radiotherapy may improve both OS and CSS in SCLC patients. Patients with SCLC may benefit from radiotherapy regardless of age, sex, race, primary tumor site, M stage, chemotherapy, and surgery.
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Affiliation(s)
- Yao Chen
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
- The School of Public Health, Fujian Medical University, Fuzhou, 350108, Fujian Province, China
| | - Ling Yao
- College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Children's Hospital, Fujian Medical University, Fuzhou, 350014, China
| | - Qingquan Chen
- The School of Public Health, Fujian Medical University, Fuzhou, 350108, Fujian Province, China
| | - Yiming Hu
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Xi Zhu
- The School of Public Health, Fujian Medical University, Fuzhou, 350108, Fujian Province, China
| | - Rongrong Dai
- The School of Public Health, Fujian Medical University, Fuzhou, 350108, Fujian Province, China
| | - Xiaoyang Chen
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
| | - Yifu Zeng
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
- Cyberspace Institute of Advanced Technology, Guangzhou University, Guangzhou, China
| | - Yong Zhu
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Duanhong Song
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China.
| | - Yixiang Zhang
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China.
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28
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Hu Q, Espejo Valle-Inclán J, Dahiya R, Guyer A, Mazzagatti A, Maurais EG, Engel JL, Lu H, Davis AJ, Cortés-Ciriano I, Ly P. Non-homologous end joining shapes the genomic rearrangement landscape of chromothripsis from mitotic errors. Nat Commun 2024; 15:5611. [PMID: 38965240 PMCID: PMC11224358 DOI: 10.1038/s41467-024-49985-5] [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: 08/02/2023] [Accepted: 06/25/2024] [Indexed: 07/06/2024] Open
Abstract
Mitotic errors generate micronuclei entrapping mis-segregated chromosomes, which are susceptible to catastrophic fragmentation through chromothripsis. The reassembly of fragmented chromosomes by error-prone DNA double-strand break (DSB) repair generates diverse genomic rearrangements associated with human diseases. How specific repair pathways recognize and process these lesions remains poorly understood. Here we use CRISPR/Cas9 to systematically inactivate distinct DSB repair pathways and interrogate the rearrangement landscape of fragmented chromosomes. Deletion of canonical non-homologous end joining (NHEJ) components substantially reduces complex rearrangements and shifts the rearrangement landscape toward simple alterations without the characteristic patterns of chromothripsis. Following reincorporation into the nucleus, fragmented chromosomes localize within sub-nuclear micronuclei bodies (MN bodies) and undergo ligation by NHEJ within a single cell cycle. In the absence of NHEJ, chromosome fragments are rarely engaged by alternative end-joining or recombination-based mechanisms, resulting in delayed repair kinetics, persistent 53BP1-labeled MN bodies, and cell cycle arrest. Thus, we provide evidence supporting NHEJ as the exclusive DSB repair pathway generating complex rearrangements from mitotic errors.
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Affiliation(s)
- Qing Hu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jose Espejo Valle-Inclán
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, UK
| | - Rashmi Dahiya
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Alison Guyer
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alice Mazzagatti
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Elizabeth G Maurais
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Justin L Engel
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Huiming Lu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Anthony J Davis
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Isidro Cortés-Ciriano
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, UK
| | - Peter Ly
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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29
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Krenz B, Lee J, Kannan T, Eilers M. Immune evasion: An imperative and consequence of MYC deregulation. Mol Oncol 2024. [PMID: 38957016 DOI: 10.1002/1878-0261.13695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/08/2024] [Accepted: 06/19/2024] [Indexed: 07/04/2024] Open
Abstract
MYC has been implicated in the pathogenesis of a wide range of human tumors and has been described for many years as a transcription factor that regulates genes with pleiotropic functions to promote tumorigenic growth. However, despite extensive efforts to identify specific target genes of MYC that alone could be responsible for promoting tumorigenesis, the field is yet to reach a consensus whether this is the crucial function of MYC. Recent work shifts the view on MYC's function from being a gene-specific transcription factor to an essential stress resilience factor. In highly proliferating cells, MYC preserves cell integrity by promoting DNA repair at core promoters, protecting stalled replication forks, and/or preventing transcription-replication conflicts. Furthermore, an increasing body of evidence demonstrates that MYC not only promotes tumorigenesis by driving cell-autonomous growth, but also enables tumors to evade the host's immune system. In this review, we summarize our current understanding of how MYC impairs antitumor immunity and why this function is evolutionarily hard-wired to the biology of the MYC protein family. We show why the cell-autonomous and immune evasive functions of MYC are mutually dependent and discuss ways to target MYC proteins in cancer therapy.
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Affiliation(s)
- Bastian Krenz
- Department of Biochemistry and Molecular Biology, Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
- Mildred Scheel Early Career Center, Würzburg, Germany
| | - Jongkuen Lee
- Department of Biochemistry and Molecular Biology, Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - Toshitha Kannan
- Department of Biochemistry and Molecular Biology, Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - Martin Eilers
- Department of Biochemistry and Molecular Biology, Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
- Comprehensive Cancer Center Mainfranken, Würzburg, Germany
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30
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Wakasa T, Nonaka K, Harada A, Ohkawa Y, Kikutake C, Suyama M, Kobunai T, Tsunekuni K, Matsuoka K, Kataoka Y, Ochiiwa H, Miyadera K, Sagara T, Oki E, Ohdo S, Maehara Y, Iimori M, Kitao H. The anti-tumor effect of trifluridine via induction of aberrant mitosis is unaffected by mutations modulating p53 activity. Cell Death Discov 2024; 10:307. [PMID: 38956056 PMCID: PMC11219725 DOI: 10.1038/s41420-024-02083-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/18/2024] [Accepted: 06/21/2024] [Indexed: 07/04/2024] Open
Abstract
The fluorinated thymidine analog trifluridine (FTD) is a chemotherapeutic drug commonly used to treat cancer; however, the mechanism by which FTD induces cytotoxicity is not fully understood. In addition, the effect of gain-of-function (GOF) missense mutations of the TP53 gene (encoding p53), which promote cancer progression and chemotherapeutic drug resistance, on the chemotherapeutic efficacy of FTD is unclear. Here, we revealed the mechanisms by which FTD-induced aberrant mitosis and contributed to cytotoxicity in both p53-null and p53-GOF missense mutant cells. In p53-null mutant cells, FTD-induced DNA double-stranded breaks, single-stranded DNA accumulation, and the associated DNA damage responses during the G2 phase. Nevertheless, FTD-induced DNA damage and the related responses were not sufficient to trigger strict G2/M checkpoint arrest. Thus, these features were carried over into mitosis, resulting in chromosome breaks and bridges, and subsequent cytokinesis failure. Improper mitotic exit eventually led to cell apoptosis, caused by the accumulation of extensive DNA damage and the presence of micronuclei encapsulated in the disrupted nuclear envelope. Upon FTD treatment, the behavior of the p53-GOF-missense mutant, isogenic cell lines, generated by CRISPR/Cas9 genome editing, was similar to that of p53-null mutant cells. Thus, our data suggest that FTD treatment overrode the effect on gene expression induced by p53-GOF mutants and exerted its anti-tumor activity in a manner that was independent of the p53 function.
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Affiliation(s)
- Takeshi Wakasa
- Department of Molecular Cancer Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
- Taiho Pharmaceutical Co. Ltd., Tokyo, Japan
- Department of Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Nonaka
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan
| | - Akihito Harada
- Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Yasuyuki Ohkawa
- Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Chie Kikutake
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Mikita Suyama
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | | | | | | - Eiji Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shigehiro Ohdo
- Department of Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan
| | - Makoto Iimori
- Department of Molecular Cancer Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan.
| | - Hiroyuki Kitao
- Department of Molecular Cancer Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan.
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31
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Park A, Lee JY. Adenoviral Vector System: A Comprehensive Overview of Constructions, Therapeutic Applications and Host Responses. J Microbiol 2024; 62:491-509. [PMID: 39037484 DOI: 10.1007/s12275-024-00159-4] [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: 05/15/2024] [Revised: 06/26/2024] [Accepted: 07/04/2024] [Indexed: 07/23/2024]
Abstract
Adenoviral vectors are crucial for gene therapy and vaccine development, offering a platform for gene delivery into host cells. Since the discovery of adenoviruses, first-generation vectors with limited capacity have evolved to third-generation vectors flacking viral coding sequences, balancing safety and gene-carrying capacity. The applications of adenoviral vectors for gene therapy and anti-viral treatments have expanded through the use of in vitro ligation and homologous recombination, along with gene editing advancements such as CRISPR-Cas9. Current research aims to maintain the efficacy and safety of adenoviral vectors by addressing challenges such as pre-existing immunity against adenoviral vectors and developing new adenoviral vectors from rare adenovirus types and non-human species. In summary, adenoviral vectors have great potential in gene therapy and vaccine development. Through continuous research and technological advancements, these vectors are expected to lead to the development of safer and more effective treatments.
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Affiliation(s)
- Anyeseu Park
- The Laboratory of Viromics and Evolution, Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, 54531, Republic of Korea
| | - Jeong Yoon Lee
- The Laboratory of Viromics and Evolution, Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, 54531, Republic of Korea.
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32
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Donati M, Kazakov DV. Beyond typical histology of BAP1-inactivated melanocytoma. Pathol Res Pract 2024; 259:155162. [PMID: 38326181 DOI: 10.1016/j.prp.2024.155162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/05/2024] [Accepted: 01/20/2024] [Indexed: 02/09/2024]
Abstract
BAP1-inactivated melanocytoma (BIM) is a novel subgroup of melanocytic neoplasm listed in the 5th edition of WHO classification of skin tumor. BIM is characterized by two molecular alterations, including a mitogenic driver mutation (usually BRAF gene) and the loss of function of BAP1, a tumor suppressor gene located on chromosome 3p21, which encodes for BRCA1-associated protein (BAP1). The latter represents a nuclear-localized deubiquitinase involved in several cellular processes including cell cycle regulation, chromatin remodeling, DNA damage response, differentiation, senescence and cell death. BIMs are histologically characterized by a population of large epithelioid melanocytes with well-demarcated cytoplasmic borders and copious eosinophilic cytoplasm, demonstrating loss of BAP1 nuclear expression by immunohistochemistry. Recently, we have published a series of 50 cases, extending the morphological spectrum of the neoplasm and highlighting some new microscopic features. In the current article, we focus on some new histological features, attempting to explain and link them to certain mechanisms of tumor development, including senescence, endoreplication, endocycling, asymmetric cytokinesis, entosis and others. In light of the morphological and molecular findings observed in BIM, we postulated that this entity unmasks a fine mechanism of tumor in which both clonal/stochastic and hierarchical model can be unified.
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Affiliation(s)
- Michele Donati
- Department of Pathology, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy; Department of Pathology, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21 - 00128 Roma, Italy.
| | - Dmitry V Kazakov
- IDP Dermatohistopathologie Institut, Pathologie Institut Enge, Zurich, Switzerland
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33
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Moeed A, Thilmany N, Beck F, Puthussery BK, Ortmann N, Haimovici A, Badr MT, Haghighi EB, Boerries M, Öllinger R, Rad R, Kirschnek S, Gentle IE, Donakonda S, Petric PP, Hummel JF, Pfaffendorf E, Zanetta P, Schell C, Schwemmle M, Weber A, Häcker G. The Caspase-Activated DNase drives inflammation and contributes to defense against viral infection. Cell Death Differ 2024; 31:924-937. [PMID: 38849575 PMCID: PMC11239672 DOI: 10.1038/s41418-024-01320-7] [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: 09/19/2023] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/09/2024] Open
Abstract
Mitochondria react to infection with sub-lethal signals in the apoptosis pathway. Mitochondrial signals can be inflammatory but mechanisms are only partially understood. We show that activation of the caspase-activated DNase (CAD) mediates mitochondrial pro-inflammatory functions and substantially contributes to host defense against viral infection. In cells lacking CAD, the pro-inflammatory activity of sub-lethal signals was reduced. Experimental activation of CAD caused transient DNA-damage and a pronounced DNA damage response, involving major kinase signaling pathways, NF-κB and cGAS/STING, driving the production of interferon, cytokines/chemokines and attracting neutrophils. The transcriptional response to CAD-activation was reminiscent of the reaction to microbial infection. CAD-deficient cells had a diminished response to viral infection. Influenza virus infected CAD-deficient mice displayed reduced inflammation in lung tissue, higher viral titers and increased weight loss. Thus, CAD links the mitochondrial apoptosis system and cell death caspases to host defense. CAD-driven DNA damage is a physiological element of the inflammatory response to infection.
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Affiliation(s)
- Abdul Moeed
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Nico Thilmany
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Frederic Beck
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Bhagya K Puthussery
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Noemi Ortmann
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Aladin Haimovici
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - M Tarek Badr
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Elham Bavafaye Haghighi
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), partner site Freiburg, Freiburg, Germany
| | - Rupert Öllinger
- Institute of Molecular Oncology and Functional Genomics, Department of Medicine II and TranslaTUM Cancer Center; TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Roland Rad
- Institute of Molecular Oncology and Functional Genomics, Department of Medicine II and TranslaTUM Cancer Center; TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Susanne Kirschnek
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Ian E Gentle
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Sainitin Donakonda
- Institute of Molecular Immunology and Experimental Oncology, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Philipp P Petric
- Institute of Virology, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Jonas F Hummel
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Elisabeth Pfaffendorf
- Institute of Surgical Pathology, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Paola Zanetta
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Christoph Schell
- Institute of Surgical Pathology, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Martin Schwemmle
- Institute of Virology, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Arnim Weber
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Georg Häcker
- Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany.
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany.
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34
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Villagomez FR, Lang J, Rosario FJ, Nunez-Avellaneda D, Webb P, Neville M, Woodruff ER, Bitler BG. Claudin-4 Modulates Autophagy via SLC1A5/LAT1 as a Mechanism to Regulate Micronuclei. CANCER RESEARCH COMMUNICATIONS 2024; 4:1625-1642. [PMID: 38867360 PMCID: PMC11218812 DOI: 10.1158/2767-9764.crc-24-0240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/21/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024]
Abstract
Genome instability is a hallmark of cancer crucial for tumor heterogeneity and is often a result of defects in cell division and DNA damage repair. Tumors tolerate genomic instability, but the accumulation of genetic aberrations is regulated to avoid catastrophic chromosomal alterations and cell death. In ovarian cancer tumors, claudin-4 is frequently upregulated and closely associated with genome instability and worse patient outcomes. However, its biological association with regulating genomic instability is poorly understood. Here, we used CRISPR interference and a claudin mimic peptide to modulate the claudin-4 expression and its function in vitro and in vivo. We found that claudin-4 promotes a tolerance mechanism for genomic instability through micronuclei generation in tumor cells. Disruption of claudin-4 increased autophagy and was associated with the engulfment of cytoplasm-localized DNA. Mechanistically, we observed that claudin-4 establishes a biological axis with the amino acid transporters SLC1A5 and LAT1, which regulate autophagy upstream of mTOR. Furthermore, the claudin-4/SLC1A5/LAT1 axis was linked to the transport of amino acids across the plasma membrane as one of the potential cellular processes that significantly decreased survival in ovarian cancer patients. Together, our results show that the upregulation of claudin-4 contributes to increasing the threshold of tolerance for genomic instability in ovarian tumor cells by limiting its accumulation through autophagy. SIGNIFICANCE Autophagy regulation via claudin-4/SLC1A5/LAT1 has the potential to be a targetable mechanism to interfere with genomic instability in ovarian tumor cells.
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Affiliation(s)
- Fabian R. Villagomez
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
| | - Julie Lang
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
| | - Fredrick J. Rosario
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
| | - Daniel Nunez-Avellaneda
- Deputy Directorate of Technological Development, Linkage, and Innovation, National Council of Humanities, Sciences, and Technologies, Mexico City, Mexico.
| | - Patricia Webb
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
| | - Margaret Neville
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
| | - Elizabeth R. Woodruff
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
| | - Benjamin G. Bitler
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
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35
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Cazzaniga C, Göder A, Rainey MD, Quinlan A, Coughlan S, Bernard S, Santocanale C. CDC7 inhibition drives an inflammatory response and a p53-dependent senescent-like state in breast epithelial cells. FEBS J 2024; 291:3147-3168. [PMID: 38555567 DOI: 10.1111/febs.17127] [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: 09/01/2023] [Revised: 02/04/2024] [Accepted: 03/18/2024] [Indexed: 04/02/2024]
Abstract
Drugs that block DNA replication prevent cell proliferation, which may result in anticancer activity. The latter is dependent on the drug's mode of action as well as on cell type-dependent responses to treatment. The inhibition of Cell division cycle 7-related protein kinase (CDC7), a key regulator of DNA replication, decreases the efficiency of origin firing and hampers the restarting of paused replication forks. Here, we show that upon prolonged CDC7 inhibition, breast-derived MCF10A cells progressively withdraw from the cell cycle and enter a reversible senescent-like state. This is characterised by the rewiring of the transcriptional programme with the induction of cytokine and chemokine expression and correlates with the accumulation of Cyclic GMP-AMP synthase (cGAS)-positive micronuclei. Importantly, cell fate depends on Cellular tumour antigen p53 (p53) function as cells no longer enter senescence but are funnelled into apoptosis upon p53 knockout. This work uncovers key features of the secondary response to CDC7 inhibitors, which could aid the development of these compounds as anticancer drugs.
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Affiliation(s)
- Chiara Cazzaniga
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
| | - Anja Göder
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
| | - Michael David Rainey
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
| | - Aisling Quinlan
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
| | - Simone Coughlan
- SFI Centre for Research Training in Genomics Data Science, University of Galway, Ireland
| | - Stefanus Bernard
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
- SFI Centre for Research Training in Genomics Data Science, University of Galway, Ireland
| | - Corrado Santocanale
- Centre for Chromosome Biology, School of Biological and Chemical Sciences, University of Galway, Ireland
- SFI Centre for Research Training in Genomics Data Science, University of Galway, Ireland
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36
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Wang J, Yao N, Chen Y, Li X, Jiang Z. Research progress of cGAS-STING signaling pathway in intestinal diseases. Int Immunopharmacol 2024; 135:112271. [PMID: 38762923 DOI: 10.1016/j.intimp.2024.112271] [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: 04/10/2024] [Revised: 05/05/2024] [Accepted: 05/13/2024] [Indexed: 05/21/2024]
Abstract
The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signal has drawn much consideration due to its sensitivity to DNA in innate immune mechanisms. Activation of the cGAS-STIN signaling pathway induces the production of interferon and inflammatory cytokines, resulting in immune responses, or inflammatory diseases. The intestinal tract is a vital organ for the body's nutrition absorption, recent studies have had various points of view on the job of cGAS-STING pathway in various intestinal sicknesses. Therefore, understanding its role and mechanism in the intestinal environment can help to develop new strategies for the treatment of intestinal diseases. This article examines the mechanism of the cGAS-STING pathway and its function in inflammatory bowel disease, intestinal cancer, and long-injury ischemia-reperfusion, lists the current medications that target it for the treatment of intestinal diseases, and discusses the impact of intestinal flora on this signaling pathway, to offer a theoretical and scientific foundation for upcoming targeted therapies for intestinal disorders via the cGAS-STING pathway.
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Affiliation(s)
- Jiamin Wang
- College of Pharmacy, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanji, Jilin 133002, China
| | - Naiqi Yao
- Department of Pharmacy, Yanbian University Hospital, Yanji, Jilin 133000, China
| | - Yonghu Chen
- College of Pharmacy, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanji, Jilin 133002, China
| | - Xuezheng Li
- College of Pharmacy, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanji, Jilin 133002, China; Department of Pharmacy, Yanbian University Hospital, Yanji, Jilin 133000, China
| | - Zhe Jiang
- College of Pharmacy, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanji, Jilin 133002, China; Department of Pharmacy, Yanbian University Hospital, Yanji, Jilin 133000, China.
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37
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Técher H, Gopaul D, Heuzé J, Bouzalmad N, Leray B, Vernet A, Mettling C, Moreaux J, Pasero P, Lin YL. MRE11 and TREX1 control senescence by coordinating replication stress and interferon signaling. Nat Commun 2024; 15:5423. [PMID: 38926338 PMCID: PMC11208572 DOI: 10.1038/s41467-024-49740-w] [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: 06/05/2023] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Oncogene-induced senescence (OIS) arrests cell proliferation in response to replication stress (RS) induced by oncogenes. OIS depends on the DNA damage response (DDR), but also on the cGAS-STING pathway, which detects cytosolic DNA and induces type I interferons (IFNs). Whether and how RS and IFN responses cooperate to promote OIS remains unknown. Here, we show that the induction of OIS by the H-RASV12 oncogene in immortalized human fibroblasts depends on the MRE11 nuclease. Indeed, treatment with the MRE11 inhibitor Mirin prevented RS, micronuclei formation and IFN response induced by RASV12. Overexpression of the cytosolic nuclease TREX1 also prevented OIS. Conversely, overexpression of a dominant negative mutant of TREX1 or treatment with IFN-β was sufficient to induce RS and DNA damage, independent of RASV12 induction. These data suggest that the IFN response acts as a positive feedback loop to amplify DDR in OIS through a process regulated by MRE11 and TREX1.
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Affiliation(s)
- Hervé Técher
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
- Institute for Research on Cancer and Aging of Nice (IRCAN), Université Côte d'Azur, CNRS UMR7284 - INSERM U1081, Nice, France
| | - Diyavarshini Gopaul
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
- Biotech Research and Innovation Centre, University of Copenhagen, 2200 N, Copenhagen, Denmark
| | - Jonathan Heuzé
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
| | - Nail Bouzalmad
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
| | - Baptiste Leray
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
| | - Audrey Vernet
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France
| | - Clément Mettling
- Institut de Génétique Humaine, University of Montpellier, CNRS, Montpellier, France
| | - Jérôme Moreaux
- Institut de Génétique Humaine, University of Montpellier, CNRS, Montpellier, France
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
- University of Montpellier, UFR Medicine, Montpellier, France
| | - Philippe Pasero
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France.
| | - Yea-Lih Lin
- Institut de Génétique Humaine, University of Montpellier, CNRS, Equipe Labellisée Ligue contre le Cancer, Montpellier, France.
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Perea Paizal J, Au SH, Bakal C. Nuclear rupture induced by capillary constriction forces promotes differential effects on metastatic and normal breast cells. Sci Rep 2024; 14:14793. [PMID: 38926422 PMCID: PMC11208511 DOI: 10.1038/s41598-024-64733-x] [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: 10/26/2023] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
During metastatic dissemination, circulating tumour cells (CTCs) enter capillary beds, where they experience mechanical constriction forces. The transient and persistent effects of these forces on CTCs behaviour remain poorly understood. Here, we developed a high-throughput microfluidic platform mimicking human capillaries to investigate the impact of mechanical constriction forces on malignant and normal breast cell lines. We observed that capillary constrictions induced nuclear envelope rupture in both cancer and normal cells, leading to transient changes in nuclear and cytoplasmic area. Constriction forces transiently activated cGAS/STING and pathways involved in inflammation (NF-κB, STAT and IRF3), especially in the non-malignant cell line. Furthermore, the non-malignant cell line experienced transcriptional changes, particularly downregulation of epithelial markers, while the metastatic cell lines showed minimal alterations. These findings suggest that mechanical constriction forces within capillaries may promote differential effects in malignant and normal cell lines.
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Affiliation(s)
- Julia Perea Paizal
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
- Division of Cancer Biology, Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London, SW6 6JB, UK.
- Cancer Research UK Convergence Science Centre, Roderic Hill Building, Imperial College London, London, SW7 2BB, UK.
| | - Sam H Au
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Cancer Research UK Convergence Science Centre, Roderic Hill Building, Imperial College London, London, SW7 2BB, UK
| | - Chris Bakal
- Division of Cancer Biology, Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London, SW6 6JB, UK
- Cancer Research UK Convergence Science Centre, Roderic Hill Building, Imperial College London, London, SW7 2BB, UK
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Bharti V, Kumar A, Wang Y, Roychowdhury N, de Lima Bellan D, Kassaye BB, Watkins R, Capece M, Chung CG, Hilinski G, Vilgelm AE. TTK inhibitor OSU13 promotes immunotherapy responses by activating tumor STING. JCI Insight 2024; 9:e177523. [PMID: 38900577 DOI: 10.1172/jci.insight.177523] [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: 11/13/2023] [Accepted: 06/18/2024] [Indexed: 06/22/2024] Open
Abstract
TTK spindle assembly checkpoint kinase is an emerging cancer target. This preclinical study explored the antitumor mechanism of TTK inhibitor OSU13 to define a strategy for clinical development. We observed prominent antitumor activity of OSU13 in melanoma, colon and breast cancer cells, organoids derived from patients with melanoma, and mice bearing colon tumors associated with G2 cell cycle arrest, senescence, and apoptosis. OSU13-treated cells displayed DNA damage and micronuclei that triggered the cytosolic DNA-sensing cGAS/STING pathway. STING was required for the induction of several proteins involved in T cell recruitment and activity. Tumors from OSU13-treated mice showed an increased proportion of T and NK cells and evidence of PD-1/PD-L1 immune checkpoint activation. Combining a low-toxicity dose of OSU13 with anti-PD-1 checkpoint blockade resulted in prominent STING- and CD8+ T cell-dependent tumor inhibition and improved survival. These findings provide a rationale for utilizing TTK inhibitors in combination with immunotherapy in STING-proficient tumors.
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Affiliation(s)
- Vijaya Bharti
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Amrendra Kumar
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Yinchong Wang
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
- Molecular Cellular and Developmental Biology Graduate Program, The Ohio State University, Columbus, Ohio, USA
| | - Nikhil Roychowdhury
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Daniel de Lima Bellan
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | | | - Reese Watkins
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Marina Capece
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | | | - Gerard Hilinski
- Drug Development Institute, Comprehensive Cancer Center and The James Cancer Hospital and Solove Research Institute, Columbus, Ohio, USA
| | - Anna E Vilgelm
- Department of Pathology
- Pelotonia Institute for Immunooncology, and
- Comprehensive Cancer Center, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
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Yamada H, Takada M, Ghone D, Yu M, Nagashima T, Fujimoto H, Sakakibara J, Hasegawa Y, Takao S, Yamada A, Narui K, Ishikawa T, Suzuki A, Otsuka M. Eribulin induces micronuclei and enhances the nuclear localization of cGAS in triple-negative breast cancer cells. Sci Rep 2024; 14:14146. [PMID: 38898119 PMCID: PMC11187130 DOI: 10.1038/s41598-024-64651-y] [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: 11/27/2023] [Accepted: 06/11/2024] [Indexed: 06/21/2024] Open
Abstract
Eribulin (ERI), clinically utilized for locally advanced or metastatic breast tumors, has shown potential links to the immune system. Notably, the cGAS-STING pathway, a key component of innate immunity, has gained prominence. Yet, limited reports explore ERI's effects on the cGAS-STING pathway. Additionally, the nuclear presence of cGAS remains poorly understood. This study uniquely delves into ERI's impact on both the cytosolic cGAS-STING pathway and nuclear cGAS. ERI enhances nuclear localization of cGAS, resulting in hyper-activation of the cGAS-STING pathway in triple-negative breast cancer cells. Reduction of cGAS heightened both cell proliferation and ERI sensitivity. In clinical data using ERI in a neo-adjuvant setting, patients with low cGAS cases exhibited reduced likelihood of achieving pathological complete response after ERI treatment. These findings illuminate the potential of cGAS and IFNβ as predictive biomarkers for ERI sensitivity, providing valuable insights for personalized breast cancer treatment strategies.
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Affiliation(s)
- Hideyuki Yamada
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Mamoru Takada
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan.
| | - Dhaval Ghone
- Biophysics Graduate Program, University of Wisconsin-Madison, Madison, WI, USA
- McArdle Laboratory for Cancer Research, Department of Oncology, University of Wisconsin-Madison, Madison, WI, USA
- Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Muhan Yu
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Takeshi Nagashima
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Hiroshi Fujimoto
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Junta Sakakibara
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Yoshie Hasegawa
- Department of Breast Surgery, Hachinohe City Hospital, Hachinohe, Aomori, Japan
| | - Shintaro Takao
- Department of Breast Surgery, Konan Medical Center, Kobe, Hyogo, Japan
| | - Akimitsu Yamada
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Kazutaka Narui
- Department of Breast and Thyroid Surgery, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan
| | - Takashi Ishikawa
- Department of Breast Oncology and Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Aussie Suzuki
- Biophysics Graduate Program, University of Wisconsin-Madison, Madison, WI, USA
- McArdle Laboratory for Cancer Research, Department of Oncology, University of Wisconsin-Madison, Madison, WI, USA
- Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Masayuki Otsuka
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
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41
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Zhang S, Xiao X, Yi Y, Wang X, Zhu L, Shen Y, Lin D, Wu C. Tumor initiation and early tumorigenesis: molecular mechanisms and interventional targets. Signal Transduct Target Ther 2024; 9:149. [PMID: 38890350 PMCID: PMC11189549 DOI: 10.1038/s41392-024-01848-7] [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: 01/01/2024] [Revised: 04/23/2024] [Accepted: 04/27/2024] [Indexed: 06/20/2024] Open
Abstract
Tumorigenesis is a multistep process, with oncogenic mutations in a normal cell conferring clonal advantage as the initial event. However, despite pervasive somatic mutations and clonal expansion in normal tissues, their transformation into cancer remains a rare event, indicating the presence of additional driver events for progression to an irreversible, highly heterogeneous, and invasive lesion. Recently, researchers are emphasizing the mechanisms of environmental tumor risk factors and epigenetic alterations that are profoundly influencing early clonal expansion and malignant evolution, independently of inducing mutations. Additionally, clonal evolution in tumorigenesis reflects a multifaceted interplay between cell-intrinsic identities and various cell-extrinsic factors that exert selective pressures to either restrain uncontrolled proliferation or allow specific clones to progress into tumors. However, the mechanisms by which driver events induce both intrinsic cellular competency and remodel environmental stress to facilitate malignant transformation are not fully understood. In this review, we summarize the genetic, epigenetic, and external driver events, and their effects on the co-evolution of the transformed cells and their ecosystem during tumor initiation and early malignant evolution. A deeper understanding of the earliest molecular events holds promise for translational applications, predicting individuals at high-risk of tumor and developing strategies to intercept malignant transformation.
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Affiliation(s)
- Shaosen Zhang
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Xinyi Xiao
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Yonglin Yi
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Xinyu Wang
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Lingxuan Zhu
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Changping Laboratory, 100021, Beijing, China
| | - Yanrong Shen
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Dongxin Lin
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China.
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China.
- Changping Laboratory, 100021, Beijing, China.
- Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, 211166, China.
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, China.
| | - Chen Wu
- Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China.
- Key Laboratory of Cancer Genomic Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China.
- Changping Laboratory, 100021, Beijing, China.
- Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, 211166, China.
- CAMS Oxford Institute, Chinese Academy of Medical Sciences, 100006, Beijing, China.
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42
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Yang J, Xu Z, Zheng W, Li Y, Wei Q, Yang L. Identification of the cytoplasmic DNA-Sensing cGAS-STING pathway-mediated gene signatures and molecular subtypes in prostate cancer. BMC Cancer 2024; 24:732. [PMID: 38877472 PMCID: PMC11179326 DOI: 10.1186/s12885-024-12492-3] [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: 04/26/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Considering the age relevance of prostate cancer (PCa) and the involvement of the cGAS-STING pathway in aging and cancer, we aim to classify PCa into distinct molecular subtypes and identify key genes from the novel perspective of the cGAS-STING pathway. It is of significance to guide personalized intervention of cancer-targeting therapy based on genetic evidence. METHODS The 430 patients with PCa from the TCGA database were included. We integrated 29 key genes involved in cGAS-STING pathway and analyzed differentially expressed genes and biochemical recurrence (BCR)-free survival-related genes. The assessments of tumor stemness and heterogeneity and tumor microenvironment (TME) were conducted to reveal potential mechanisms. RESULTS PCa patients were classified into two distinct subtypes using AURKB, TREX1, and STAT6, and subtype 1 had a worse prognosis than subtype 2 (HR: 21.19, p < 0.001). The findings were validated in the MSKCC2010 cohort. Among subtype 1 and subtype 2, the top ten mutation genes were MUC5B, DNAH9, SLC5A10, ZNF462, USP31, SIPA1L3, PLEC, HRAS, MYOM1, and ITGB6. Gene set variation analysis revealed a high enrichment of the E2F target in subtype 1, and gene set enrichment analysis showed significant enrichment of base excision repair, cell cycle, and DNA replication in subtype 1. TME evaluation indicated that subtype 1 had a significantly higher level of T cells follicular helper and a lower level of plasma cells than subtype 2. CONCLUSIONS The molecular subtypes mediated by the cGAS-STING pathway and the genetic risk score may aid in identifying potentially high-risk PCa patients who may benefit from pharmacologic therapies targeting the cGAS-STING pathway.
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Affiliation(s)
- Jie Yang
- Department of Urology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, China
| | - Zihan Xu
- China Agricultural University, Beijing, 100083, China
| | - Weitao Zheng
- Department of Urology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, China
| | - Yifan Li
- Department of Urology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, China
| | - Qiang Wei
- Department of Urology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, China.
| | - Lu Yang
- Department of Urology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, China.
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Du Z, Lin M, Li Q, Guo D, Xue Y, Liu W, Shi H, Chen T, Dan J. The totipotent 2C-like state safeguards genomic stability of mouse embryonic stem cells. J Cell Physiol 2024. [PMID: 38860420 DOI: 10.1002/jcp.31337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/12/2024]
Abstract
Mouse embryonic stem cells (mESCs) sporadically transition to a transient totipotent state that resembles blastomeres of the two-cell (2C) embryo stage, which has been proposed to contribute to exceptional genomic stability, one of the key features of mESCs. However, the biological significance of the rare population of 2C-like cells (2CLCs) in ESC cultures remains to be tested. Here we generated an inducible reporter cell system for specific elimination of 2CLCs from the ESC cultures to disrupt the equilibrium between ESCs and 2CLCs. We show that removing 2CLCs from the ESC cultures leads to dramatic accumulation of DNA damage, genomic mutations, and rearrangements, indicating impaired genomic instability. Furthermore, 2CLCs removal results in increased apoptosis and reduced proliferation of mESCs in both serum/LIF and 2i/LIF culture conditions. Unexpectedly, p53 deficiency results in defective response to DNA damage, leading to early accumulation of DNA damage, micronuclei, indicative of genomic instability, cell apoptosis, and reduced self-renewal capacity of ESCs when devoid of 2CLCs in cultures. Together, our data reveal that transition to the privileged 2C-like state is a major component of the intrinsic mechanisms that maintain the exceptional genomic stability of mESCs for long-term self-renewal.
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Affiliation(s)
- Zeling Du
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Meiqi Lin
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Qiaohua Li
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Dan Guo
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Yanna Xue
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Wei Liu
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Hong Shi
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
| | - Taiping Chen
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Programs in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Jiameng Dan
- State Key Laboratory of Primate Biomedical Research, Kunming University of Science and Technology, Kunming, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Primate Biomedical Research, Kunming, China
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44
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Chen J, Zhao B, Dong H, Li T, Cheng X, Gong W, Wang J, Zhang J, Xin G, Yu Y, Lei YL, Black JD, Li Z, Wen H. Inhibition of O-GlcNAc transferase activates type I interferon-dependent antitumor immunity by bridging cGAS-STING pathway. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.14.571787. [PMID: 38168435 PMCID: PMC10760207 DOI: 10.1101/2023.12.14.571787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The O-GlcNAc transferase (OGT) is an essential enzyme that mediates protein O-GlcNAcylation, a unique form of posttranslational modification of many nuclear and cytosolic proteins. Recent studies observed increased OGT and O-GlcNAcylation levels in a broad range of human cancer tissues compared to adjacent normal tissues, indicating a universal effect of OGT in promoting tumorigenesis. Here, we show that OGT is essential for tumor growth in immunocompetent hosts by repressing the cyclic GMP-AMP synthase (cGAS)-dependent DNA sensing pathway. We found that deletion of OGT (Ogt -/- ) caused a marked reduction in tumor growth in both syngeneic tumor models and a genetic colorectal cancer (CRC) model induced by mutation of the Apc gene (Apc min ). Pharmacological inhibition or genetic deletion of OGT induced a robust genomic instability (GIN), leading to cGAS-dependent production of the type I interferon (IFN-I) and IFN-stimulated genes (ISGs). As a result, deletion of Cgas or Sting from Ogt -/- cancer cells restored tumor growth, and this correlated with impaired CD8+ T cell-mediated antitumor immunity. Mechanistically, we found that OGT-dependent cleavage of host cell factor C1 (HCF-1) is required for the avoidance of GIN and IFN-I production in tumors. In summary, our results identify OGT-mediated genomic stability and activate cGAS-STING pathway as an important tumor cell-intrinsic mechanism to repress antitumor immunity.
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Affiliation(s)
- Jianwen Chen
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- These authors contributed equally to this work
| | - Bao Zhao
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- These authors contributed equally to this work
| | - Hong Dong
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- These authors contributed equally to this work
| | - Tianliang Li
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Xiang Cheng
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Wang Gong
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, University of Michigan Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48105, USA
| | - Jing Wang
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Junran Zhang
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Gang Xin
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Yanbao Yu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Yu L. Lei
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, University of Michigan Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48105, USA
| | - Jennifer D. Black
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Zihai Li
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Haitao Wen
- Department of Microbial Infection and Immunity, Infectious Disease Institute, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- Lead Contact
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45
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Bakr A, Corte GD, Veselinov O, Kelekçi S, Chen MJM, Lin YY, Sigismondo G, Iacovone M, Cross A, Syed R, Jeong Y, Sollier E, Liu CS, Lutsik P, Krijgsveld J, Weichenhan D, Plass C, Popanda O, Schmezer P. ARID1A regulates DNA repair through chromatin organization and its deficiency triggers DNA damage-mediated anti-tumor immune response. Nucleic Acids Res 2024; 52:5698-5719. [PMID: 38587186 PMCID: PMC11162808 DOI: 10.1093/nar/gkae233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/27/2024] [Accepted: 03/21/2024] [Indexed: 04/09/2024] Open
Abstract
AT-rich interaction domain protein 1A (ARID1A), a SWI/SNF chromatin remodeling complex subunit, is frequently mutated across various cancer entities. Loss of ARID1A leads to DNA repair defects. Here, we show that ARID1A plays epigenetic roles to promote both DNA double-strand breaks (DSBs) repair pathways, non-homologous end-joining (NHEJ) and homologous recombination (HR). ARID1A is accumulated at DSBs after DNA damage and regulates chromatin loops formation by recruiting RAD21 and CTCF to DSBs. Simultaneously, ARID1A facilitates transcription silencing at DSBs in transcriptionally active chromatin by recruiting HDAC1 and RSF1 to control the distribution of activating histone marks, chromatin accessibility, and eviction of RNAPII. ARID1A depletion resulted in enhanced accumulation of micronuclei, activation of cGAS-STING pathway, and an increased expression of immunomodulatory cytokines upon ionizing radiation. Furthermore, low ARID1A expression in cancer patients receiving radiotherapy was associated with higher infiltration of several immune cells. The high mutation rate of ARID1A in various cancer types highlights its clinical relevance as a promising biomarker that correlates with the level of immune regulatory cytokines and estimates the levels of tumor-infiltrating immune cells, which can predict the response to the combination of radio- and immunotherapy.
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Affiliation(s)
- Ali Bakr
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Giuditta Della Corte
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Olivera Veselinov
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Simge Kelekçi
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Mei-Ju May Chen
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Yu-Yu Lin
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Gianluca Sigismondo
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), INF581, 69120 Heidelberg, Germany
| | - Marika Iacovone
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Alice Cross
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Rabail Syed
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Yunhee Jeong
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Etienne Sollier
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Chun- Shan Liu
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Pavlo Lutsik
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Jeroen Krijgsveld
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), INF581, 69120 Heidelberg, Germany
- Heidelberg University, Medical Faculty, Heidelberg, Germany
| | - Dieter Weichenhan
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Christoph Plass
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), INF280, 69120 Heidelberg, Germany
| | - Odilia Popanda
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Peter Schmezer
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
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46
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Takaki T, Millar R, Hiley CT, Boulton SJ. Micronuclei induced by radiation, replication stress, or chromosome segregation errors do not activate cGAS-STING. Mol Cell 2024; 84:2203-2213.e5. [PMID: 38749421 DOI: 10.1016/j.molcel.2024.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/15/2024] [Accepted: 04/23/2024] [Indexed: 06/09/2024]
Abstract
The cyclic guanosine monophosphate (GMP)-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway plays a pivotal role in innate immune responses to viral infection and inhibition of autoimmunity. Recent studies have suggested that micronuclei formed by genotoxic stress can activate innate immune signaling via the cGAS-STING pathway. Here, we investigated cGAS localization, activation, and downstream signaling from micronuclei induced by ionizing radiation, replication stress, and chromosome segregation errors. Although cGAS localized to ruptured micronuclei via binding to self-DNA, we failed to observe cGAS activation; cGAMP production; downstream phosphorylation of STING, TBK1, or IRF3; nuclear accumulation of IRF3; or expression of interferon-stimulated genes. Failure to activate the cGAS-STING pathway was observed across primary and immortalized cell lines, which retained the ability to activate the cGAS-STING pathway in response to dsDNA or modified vaccinia virus infection. We provide evidence that micronuclei formed by genotoxic insults contain histone-bound self-DNA, which we show is inhibitory to cGAS activation in cells.
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Affiliation(s)
- Tohru Takaki
- DSB Repair Metabolism Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Rhona Millar
- DSB Repair Metabolism Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK; Cancer Research UK Radnet City of London Centre, UCL Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Crispin T Hiley
- Cancer Research UK Radnet City of London Centre, UCL Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Simon J Boulton
- DSB Repair Metabolism Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK; Artios Pharma Ltd., Babraham Research Campus, Meditrina Building, Cambridge CB22 3AT, UK.
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47
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Lim J, Rodriguez R, Williams K, Silva J, Gutierrez AG, Tyler P, Baharom F, Sun T, Lin E, Martin S, Kayser BD, Johnston RJ, Mellman I, Delamarre L, West NR, Müller S, Qu Y, Heger K. The Exonuclease TREX1 Constitutes an Innate Immune Checkpoint Limiting cGAS/STING-Mediated Antitumor Immunity. Cancer Immunol Res 2024; 12:663-672. [PMID: 38489753 PMCID: PMC11148535 DOI: 10.1158/2326-6066.cir-23-1078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/15/2024] [Accepted: 03/15/2024] [Indexed: 03/17/2024]
Abstract
The DNA exonuclease three-prime repair exonuclease 1 (TREX1) is critical for preventing autoimmunity in mice and humans by degrading endogenous cytosolic DNA, which otherwise triggers activation of the innate cGAS/STING pathway leading to the production of type I IFNs. As tumor cells are prone to aberrant cytosolic DNA accumulation, we hypothesized that they are critically dependent on TREX1 activity to limit their immunogenicity. Here, we show that in tumor cells, TREX1 restricts spontaneous activation of the cGAS/STING pathway, and the subsequent induction of a type I IFN response. As a result, TREX1 deficiency compromised in vivo tumor growth in mice. This delay in tumor growth depended on a functional immune system, systemic type I IFN signaling, and tumor-intrinsic cGAS expression. Mechanistically, we show that tumor TREX1 loss drove activation of CD8+ T cells and NK cells, prevented CD8+ T-cell exhaustion, and remodeled an immunosuppressive myeloid compartment. Consequently, TREX1 deficiency combined with T-cell-directed immune checkpoint blockade. Collectively, we conclude that TREX1 is essential to limit tumor immunogenicity, and that targeting this innate immune checkpoint remodels the tumor microenvironment and enhances antitumor immunity by itself and in combination with T-cell-targeted therapies. See related article by Toufektchan et al., p. 673.
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Affiliation(s)
| | | | | | - John Silva
- Genentech Inc., South San Francisco, California
| | | | - Paul Tyler
- Genentech Inc., South San Francisco, California
| | | | - Tao Sun
- Genentech Inc., South San Francisco, California
| | - Eva Lin
- Genentech Inc., South San Francisco, California
| | | | | | | | - Ira Mellman
- Genentech Inc., South San Francisco, California
| | | | | | | | - Yan Qu
- Genentech Inc., South San Francisco, California
| | - Klaus Heger
- Genentech Inc., South San Francisco, California
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48
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Toufektchan E, Dananberg A, Striepen J, Hickling JH, Shim A, Chen Y, Nichols A, Duran Paez MA, Mohr L, Bakhoum SF, Maciejowski J. Intratumoral TREX1 Induction Promotes Immune Evasion by Limiting Type I IFN. Cancer Immunol Res 2024; 12:673-686. [PMID: 38408184 PMCID: PMC11148545 DOI: 10.1158/2326-6066.cir-23-1093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Chromosomal instability is a hallmark of human cancer that is associated with aggressive disease characteristics. Chromosome mis-segregations help fuel natural selection, but they risk provoking a cGAS-STING immune response through the accumulation of cytosolic DNA. The mechanisms of how tumors benefit from chromosomal instability while mitigating associated risks, such as enhanced immune surveillance, are poorly understood. Here, we identify cGAS-STING-dependent upregulation of the nuclease TREX1 as an adaptive, negative feedback mechanism that promotes immune evasion through digestion of cytosolic DNA. TREX1 loss diminishes tumor growth, prolongs survival of host animals, increases tumor immune infiltration, and potentiates response to immune checkpoint blockade selectively in tumors capable of mounting a type I IFN response downstream of STING. Together, these data demonstrate that TREX1 induction shields chromosomally unstable tumors from immune surveillance by dampening type I IFN production and suggest that TREX1 inhibitors might be used to selectively target tumors that have retained the inherent ability to mount an IFN response downstream of STING. See related article by Lim et al., p. 663.
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Affiliation(s)
- Eléonore Toufektchan
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Alexandra Dananberg
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Josefine Striepen
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - James H. Hickling
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Abraham Shim
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yanyang Chen
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ashley Nichols
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mercedes A. Duran Paez
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Lisa Mohr
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Samuel F. Bakhoum
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - John Maciejowski
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
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49
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Courtier B, Delaye M, Danlos FX. [The c-GAS-STING pathway within tumors with chromosomal instability: conflicting roles?]. Med Sci (Paris) 2024; 40:578-580. [PMID: 38986108 DOI: 10.1051/medsci/2024075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024] Open
Affiliation(s)
- Baudouin Courtier
- Master Biologie Moléculaire et Cellulaire (BMC), Parcours Immunologie, M2 Immunologie Translationnelle et Biothérapies (ITB), Sorbonne Université, Paris, France
| | - Matthieu Delaye
- Master Biologie Moléculaire et Cellulaire (BMC), Parcours Immunologie, M2 Immunologie Intégrative et Systémique (I2S), Sorbonne UNiversité, Paris, France
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50
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Zhou Z, Huang S, Fan F, Xu Y, Moore C, Li S, Han C. The multiple faces of cGAS-STING in antitumor immunity: prospects and challenges. MEDICAL REVIEW (2021) 2024; 4:173-191. [PMID: 38919400 PMCID: PMC11195429 DOI: 10.1515/mr-2023-0061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/28/2024] [Indexed: 06/27/2024]
Abstract
As a key sensor of double-stranded DNA (dsDNA), cyclic GMP-AMP synthase (cGAS) detects cytosolic dsDNA and initiates the synthesis of 2'3' cyclic GMP-AMP (cGAMP) that activates the stimulator of interferon genes (STING). This finally promotes the production of type I interferons (IFN-I) that is crucial for bridging innate and adaptive immunity. Recent evidence show that several antitumor therapies, including radiotherapy (RT), chemotherapy, targeted therapies and immunotherapies, activate the cGAS-STING pathway to provoke the antitumor immunity. In the last decade, the development of STING agonists has been a major focus in both basic research and the pharmaceutical industry. However, up to now, none of STING agonists have been approved for clinical use. Considering the broad expression of STING in whole body and the direct lethal effect of STING agonists on immune cells in the draining lymph node (dLN), research on the optimal way to activate STING in tumor microenvironment (TME) appears to be a promising direction. Moreover, besides enhancing IFN-I signaling, the cGAS-STING pathway also plays roles in senescence, autophagy, apoptosis, mitotic arrest, and DNA repair, contributing to tumor development and metastasis. In this review, we summarize the recent advances on cGAS-STING pathway's response to antitumor therapies and the strategies involving this pathway for tumor treatment.
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Affiliation(s)
- Zheqi Zhou
- Peking University International Cancer Institute, Peking University Cancer Hospital and Institute, Health Science Center, Peking University, Beijing, China
| | - Sanling Huang
- Peking University International Cancer Institute, Peking University Cancer Hospital and Institute, Health Science Center, Peking University, Beijing, China
| | - Fangying Fan
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Yan Xu
- Peking University International Cancer Institute, Peking University Cancer Hospital and Institute, Health Science Center, Peking University, Beijing, China
| | - Casey Moore
- Departments of Immunology, Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Sirui Li
- Department of Genetics, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Chuanhui Han
- Peking University International Cancer Institute, Peking University Cancer Hospital and Institute, Health Science Center, Peking University, Beijing, China
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