EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-21DOI: 10.1038/s44321-024-00121-2
Hung-Chang Chen, Nico Mueller, Katherine Stott, Chrysa Kapeni, Eilidh Rivers, Carolin M Sauer, Flavio Beke, Stephen J Walsh, Nicola Ashman, Louise O'Brien, Amir Rafati Fard, Arman Ghodsinia, Changtai Li, Fadwa Joud, Olivier Giger, Inti Zlobec, Ioana Olan, Sarah J Aitken, Matthew Hoare, Richard Mair, Eva Serrao, James D Brenton, Alicia Garcia-Gimenez, Simon E Richardson, Brian Huntly, David R Spring, Mikkel-Ole Skjoedt, Karsten Skjødt, Marc de la Roche, Maike de la Roche
{"title":"Novel immunotherapeutics against LGR5 to target multiple cancer types.","authors":"Hung-Chang Chen, Nico Mueller, Katherine Stott, Chrysa Kapeni, Eilidh Rivers, Carolin M Sauer, Flavio Beke, Stephen J Walsh, Nicola Ashman, Louise O'Brien, Amir Rafati Fard, Arman Ghodsinia, Changtai Li, Fadwa Joud, Olivier Giger, Inti Zlobec, Ioana Olan, Sarah J Aitken, Matthew Hoare, Richard Mair, Eva Serrao, James D Brenton, Alicia Garcia-Gimenez, Simon E Richardson, Brian Huntly, David R Spring, Mikkel-Ole Skjoedt, Karsten Skjødt, Marc de la Roche, Maike de la Roche","doi":"10.1038/s44321-024-00121-2","DOIUrl":"10.1038/s44321-024-00121-2","url":null,"abstract":"<p><p>We have developed and validated a highly specific, versatile antibody to the extracellular domain of human LGR5 (α-LGR5). α-LGR5 detects LGR5 overexpression in >90% of colorectal cancer (CRC), hepatocellular carcinoma (HCC) and pre-B-ALL tumour cells and was used to generate an Antibody-Drug Conjugate (α-LGR5-ADC), Bispecific T-cell Engager (α-LGR5-BiTE) and Chimeric Antigen Receptor (α-LGR5-CAR). α-LGR5-ADC was the most effective modality for targeting LGR5<sup>+</sup> cancer cells in vitro and demonstrated potent anti-tumour efficacy in a murine model of human NALM6 pre-B-ALL driving tumour attrition to less than 1% of control treatment. α-LGR5-BiTE treatment was less effective in the pre-B-ALL cancer model yet promoted a twofold reduction in tumour burden. α-LGR5-CAR-T cells also showed specific and potent LGR5<sup>+</sup> cancer cell killing in vitro and effective tumour targeting with a fourfold decrease in pre-B-ALL tumour burden relative to controls. Taken together, we show that α-LGR5 can not only be used as a research tool and a biomarker but also provides a versatile building block for a highly effective immune therapeutic portfolio targeting a range of LGR5-expressing cancer cells.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2233-2261"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393416/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142016725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-09DOI: 10.1038/s44321-024-00102-5
Peiyong Guan, Jianfeng Chen, Chengqiang Mo, Tomoya Fukawa, Chao Zhang, Xiuyu Cai, Mei Li, Jing Han Hong, Jason Yongsheng Chan, Cedric Chuan Young Ng, Jing Yi Lee, Suet Far Wong, Wei Liu, Xian Zeng, Peili Wang, Rong Xiao, Vikneswari Rajasegaran, Swe Swe Myint, Abner Ming Sun Lim, Joe Poh Sheng Yeong, Puay Hoon Tan, Choon Kiat Ong, Tao Xu, Yiqing Du, Fan Bai, Xin Yao, Bin Tean Teh, Jing Tan
{"title":"Comprehensive molecular characterization of collecting duct carcinoma for therapeutic vulnerability.","authors":"Peiyong Guan, Jianfeng Chen, Chengqiang Mo, Tomoya Fukawa, Chao Zhang, Xiuyu Cai, Mei Li, Jing Han Hong, Jason Yongsheng Chan, Cedric Chuan Young Ng, Jing Yi Lee, Suet Far Wong, Wei Liu, Xian Zeng, Peili Wang, Rong Xiao, Vikneswari Rajasegaran, Swe Swe Myint, Abner Ming Sun Lim, Joe Poh Sheng Yeong, Puay Hoon Tan, Choon Kiat Ong, Tao Xu, Yiqing Du, Fan Bai, Xin Yao, Bin Tean Teh, Jing Tan","doi":"10.1038/s44321-024-00102-5","DOIUrl":"10.1038/s44321-024-00102-5","url":null,"abstract":"<p><p>Collecting duct carcinoma (CDC) is an aggressive rare subtype of kidney cancer with unmet clinical needs. Little is known about its underlying molecular alterations and etiology, primarily due to its rarity, and lack of preclinical models. This study aims to comprehensively characterize molecular alterations in CDC and identify its therapeutic vulnerabilities. Through whole-exome and transcriptome sequencing, we identified KRAS hotspot mutations (G12A/D/V) in 3/13 (23%) of the patients, in addition to known TP53, NF2 mutations. 3/13 (23%) patients carried a mutational signature (SBS22) caused by aristolochic acid (AA) exposures, known to be more prevalent in Asia, highlighting a geologically specific disease etiology. We further discovered that cell cycle-related pathways were the most predominantly dysregulated pathways. Our drug screening with our newly established CDC preclinical models identified a CDK9 inhibitor LDC000067 that specifically inhibited CDC tumor growth and prolonged survival. Our study not only improved our understanding of oncogenic molecular alterations of Asian CDC, but also identified cell-cycle machinery as a therapeutic vulnerability, laying the foundation for clinical trials to treat patients with such aggressive cancer.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2132-2145"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393068/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141912240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-20DOI: 10.1038/s44321-024-00115-0
Xinxing Li, Tao Liu, Antonella Bacchiocchi, Mengxing Li, Wen Cheng, Tobias Wittkop, Fernando L Mendez, Yingyu Wang, Paul Tang, Qianqian Yao, Marcus W Bosenberg, Mario Sznol, Qin Yan, Malek Faham, Li Weng, Ruth Halaban, Hai Jin, Zhiqian Hu
{"title":"Ultra-sensitive molecular residual disease detection through whole genome sequencing with single-read error correction.","authors":"Xinxing Li, Tao Liu, Antonella Bacchiocchi, Mengxing Li, Wen Cheng, Tobias Wittkop, Fernando L Mendez, Yingyu Wang, Paul Tang, Qianqian Yao, Marcus W Bosenberg, Mario Sznol, Qin Yan, Malek Faham, Li Weng, Ruth Halaban, Hai Jin, Zhiqian Hu","doi":"10.1038/s44321-024-00115-0","DOIUrl":"10.1038/s44321-024-00115-0","url":null,"abstract":"<p><p>While whole genome sequencing (WGS) of cell-free DNA (cfDNA) holds enormous promise for detection of molecular residual disease (MRD), its performance is limited by WGS error rate. Here we introduce AccuScan, an efficient cfDNA WGS technology that enables genome-wide error correction at single read-level, achieving an error rate of 4.2 × 10<sup>-7</sup>, which is about two orders of magnitude lower than a read-centric de-noising method. The application of AccuScan to MRD demonstrated analytical sensitivity down to 10<sup>-6</sup> circulating variant allele frequency at 99% sample-level specificity. AccuScan showed 90% landmark sensitivity (within 6 weeks after surgery) and 100% specificity for predicting relapse in colorectal cancer. It also showed 67% sensitivity and 100% specificity in esophageal cancer using samples collected within one week after surgery. When AccuScan was applied to monitor immunotherapy in melanoma patients, the circulating tumor DNA (ctDNA) levels and dynamic profiles were consistent with clinical outcomes. Overall, AccuScan provides a highly accurate WGS solution for MRD detection, empowering ctDNA detection at parts per million range without requiring high sample input or personalized reagents.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2188-2209"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-21DOI: 10.1038/s44321-024-00111-4
Brittni R Walker, Lise-Michelle Theard, Milena Pinto, Monica Rodriguez-Silva, Sandra R Bacman, Carlos T Moraes
{"title":"Restoration of defective oxidative phosphorylation to a subset of neurons prevents mitochondrial encephalopathy.","authors":"Brittni R Walker, Lise-Michelle Theard, Milena Pinto, Monica Rodriguez-Silva, Sandra R Bacman, Carlos T Moraes","doi":"10.1038/s44321-024-00111-4","DOIUrl":"10.1038/s44321-024-00111-4","url":null,"abstract":"<p><p>Oxidative Phosphorylation (OXPHOS) defects can cause severe encephalopathies and no effective treatment exists for these disorders. To assess the ability of gene replacement to prevent disease progression, we subjected two different CNS-deficient mouse models (Ndufs3/complex I or Cox10/complex IV conditional knockouts) to gene therapy. We used retro-orbitally injected AAV-PHP.eB to deliver the missing gene to the CNS of these mice. In both cases, we observed survival extension from 5-6 to more than 15 months, with no detectable disease phenotypes. Likewise, molecular and cellular phenotypes were mostly recovered in the treated mice. Surprisingly, these remarkable phenotypic improvements were achieved with only ~30% of neurons expressing the transgene from the AAV-PHP.eB vector in the conditions used. These findings suggest that neurons lacking OXPHOS are protected by the surrounding neuronal environment and that partial compensation for neuronal OXPHOS loss can have disproportionately positive effects.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2210-2232"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392956/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142016726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-05DOI: 10.1038/s44321-024-00101-6
Julia M Sattler, Lukas Keiber, Aiman Abdelrahim, Xinyu Zheng, Martin Jäcklin, Luisa Zechel, Catherine A Moreau, Smilla Steinbrück, Manuel Fischer, Chris J Janse, Angelika Hoffmann, Franziska Hentzschel, Friedrich Frischknecht
{"title":"Experimental vaccination by single dose sporozoite injection of blood-stage attenuated malaria parasites.","authors":"Julia M Sattler, Lukas Keiber, Aiman Abdelrahim, Xinyu Zheng, Martin Jäcklin, Luisa Zechel, Catherine A Moreau, Smilla Steinbrück, Manuel Fischer, Chris J Janse, Angelika Hoffmann, Franziska Hentzschel, Friedrich Frischknecht","doi":"10.1038/s44321-024-00101-6","DOIUrl":"10.1038/s44321-024-00101-6","url":null,"abstract":"<p><p>Malaria vaccination approaches using live Plasmodium parasites are currently explored, with either attenuated mosquito-derived sporozoites or attenuated blood-stage parasites. Both approaches would profit from the availability of attenuated and avirulent parasites with a reduced blood-stage multiplication rate. Here we screened gene-deletion mutants of the rodent parasite P. berghei and the human parasite P. falciparum for slow growth. Furthermore, we tested the P. berghei mutants for avirulence and resolving blood-stage infections, while preserving sporozoite formation and liver infection. Targeting 51 genes yielded 18 P. berghei gene-deletion mutants with several mutants causing mild infections. Infections with the two most attenuated mutants either by blood stages or by sporozoites were cleared by the immune response. Immunization of mice led to protection from disease after challenge with wild-type sporozoites. Two of six generated P. falciparum gene-deletion mutants showed a slow growth rate. Slow-growing, avirulent P. falciparum mutants will constitute valuable tools to inform on the induction of immune responses and will aid in developing new as well as safeguarding existing attenuated parasite vaccines.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2060-2079"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392930/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141893176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-07-26DOI: 10.1038/s44321-024-00104-3
Matthew Hunt, Nuoqi Wang, Naricha Pupinyo, Philip Curman, Monica Torres, William Jebril, Maria Chatzinikolaou, Julie Lorent, Gilad Silberberg, Ritu Bansal, Teresa Burner, Jing Zhou, Susanne Kimeswenger, Wolfram Hoetzenecker, Keith Choate, Etty Bachar-Wikstrom, Jakob D Wikstrom
{"title":"Dantrolene corrects cellular disease features of Darier disease and may be a novel treatment.","authors":"Matthew Hunt, Nuoqi Wang, Naricha Pupinyo, Philip Curman, Monica Torres, William Jebril, Maria Chatzinikolaou, Julie Lorent, Gilad Silberberg, Ritu Bansal, Teresa Burner, Jing Zhou, Susanne Kimeswenger, Wolfram Hoetzenecker, Keith Choate, Etty Bachar-Wikstrom, Jakob D Wikstrom","doi":"10.1038/s44321-024-00104-3","DOIUrl":"10.1038/s44321-024-00104-3","url":null,"abstract":"<p><p>Darier disease (DD) is a rare severe acantholytic skin disease caused by mutations in the ATP2A2 gene that encodes for the sarco/endoplasmic reticulum calcium ATPase isoform 2 (SERCA2). SERCA2 maintains endoplasmic reticulum calcium homeostasis by pumping calcium into the ER, critical for regulating cellular calcium dynamics and cellular function. To date, there is no treatment that specifically targets the disease mechanisms in DD. Dantrolene sodium (Dl) is a ryanodine receptor antagonist that inhibits calcium release from ER to increase ER calcium levels and is currently used for non-dermatological indications. In this study, we first identified dysregulated genes and molecular pathways in DD patient skin, demonstrating downregulation of cell adhesion and calcium homeostasis pathways, as well as upregulation of ER stress and apoptosis. We then show in various in vitro models of DD and SERCA2 inhibition that Dl aided in the retention of ER calcium and promoted cell adhesion. In addition, Dl treatment reduced ER stress and suppressed apoptosis. Our findings suggest that Dl specifically targets pathogenic mechanisms of DD and may be a potential treatment.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"1986-2001"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392931/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141765740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-07-30DOI: 10.1038/s44321-024-00107-0
Marco Losa, Marc Emmenegger, Pierre De Rossi, Patrick M Schürch, Tetiana Serdiuk, Niccolò Pengo, Danaëlle Capron, Dimitri Bieli, Niklas Bargenda, Niels J Rupp, Manfredi C Carta, Karl J Frontzek, Veronika Lysenko, Regina R Reimann, Petra Schwarz, Mario Nuvolone, Gunilla T Westermark, K Peter R Nilsson, Magdalini Polymenidou, Alexandre Pa Theocharides, Simone Hornemann, Paola Picotti, Adriano Aguzzi
{"title":"The ASC inflammasome adapter governs SAA-derived protein aggregation in inflammatory amyloidosis.","authors":"Marco Losa, Marc Emmenegger, Pierre De Rossi, Patrick M Schürch, Tetiana Serdiuk, Niccolò Pengo, Danaëlle Capron, Dimitri Bieli, Niklas Bargenda, Niels J Rupp, Manfredi C Carta, Karl J Frontzek, Veronika Lysenko, Regina R Reimann, Petra Schwarz, Mario Nuvolone, Gunilla T Westermark, K Peter R Nilsson, Magdalini Polymenidou, Alexandre Pa Theocharides, Simone Hornemann, Paola Picotti, Adriano Aguzzi","doi":"10.1038/s44321-024-00107-0","DOIUrl":"10.1038/s44321-024-00107-0","url":null,"abstract":"<p><p>Extracellularly released molecular inflammasome assemblies -ASC specks- cross-seed Aβ amyloid in Alzheimer's disease. Here we show that ASC governs the extent of inflammation-induced amyloid A (AA) amyloidosis, a systemic disease caused by the aggregation and peripheral deposition of the acute-phase reactant serum amyloid A (SAA) in chronic inflammatory conditions. Using super-resolution microscopy, we found that ASC colocalized tightly with SAA in human AA amyloidosis. Recombinant ASC specks accelerated SAA fibril formation and mass spectrometry after limited proteolysis showed that ASC interacts with SAA via its pyrin domain (PYD). In a murine model of inflammatory AA amyloidosis, splenic amyloid load was conspicuously decreased in Pycard<sup>-/-</sup> mice which lack ASC. Treatment with anti-ASC<sup>PYD</sup> antibodies decreased amyloid loads in wild-type mice suffering from AA amyloidosis. The prevalence of natural anti-ASC IgG (-logEC<sub>50</sub> ≥ 2) in 19,334 hospital patients was <0.01%, suggesting that anti-ASC antibody treatment modalities would not be confounded by natural autoimmunity. These findings expand the role played by ASC and IL-1 independent inflammasome employments to extraneural proteinopathies and suggest that anti-ASC immunotherapy may contribute to resolving such diseases.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2024-2042"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393341/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-05DOI: 10.1038/s44321-024-00105-2
Jinhai Deng, Teng Pan, Dan Wang, Yourae Hong, Zaoqu Liu, Xingang Zhou, Zhengwen An, Lifeng Li, Giovanna Alfano, Gang Li, Luigi Dolcetti, Rachel Evans, Jose M Vicencio, Petra Vlckova, Yue Chen, James Monypenny, Camila Araujo De Carvalho Gomes, Gregory Weitsman, Kenrick Ng, Caitlin McCarthy, Xiaoping Yang, Zedong Hu, Joanna C Porter, Christopher J Tape, Mingzhu Yin, Fengxiang Wei, Manuel Rodriguez-Justo, Jin Zhang, Sabine Tejpar, Richard Beatson, Tony Ng
{"title":"The MondoA-dependent TXNIP/GDF15 axis predicts oxaliplatin response in colorectal adenocarcinomas.","authors":"Jinhai Deng, Teng Pan, Dan Wang, Yourae Hong, Zaoqu Liu, Xingang Zhou, Zhengwen An, Lifeng Li, Giovanna Alfano, Gang Li, Luigi Dolcetti, Rachel Evans, Jose M Vicencio, Petra Vlckova, Yue Chen, James Monypenny, Camila Araujo De Carvalho Gomes, Gregory Weitsman, Kenrick Ng, Caitlin McCarthy, Xiaoping Yang, Zedong Hu, Joanna C Porter, Christopher J Tape, Mingzhu Yin, Fengxiang Wei, Manuel Rodriguez-Justo, Jin Zhang, Sabine Tejpar, Richard Beatson, Tony Ng","doi":"10.1038/s44321-024-00105-2","DOIUrl":"10.1038/s44321-024-00105-2","url":null,"abstract":"<p><p>Chemotherapy, the standard of care treatment for cancer patients with advanced disease, has been increasingly recognized to activate host immune responses to produce durable outcomes. Here, in colorectal adenocarcinoma (CRC) we identify oxaliplatin-induced Thioredoxin-Interacting Protein (TXNIP), a MondoA-dependent tumor suppressor gene, as a negative regulator of Growth/Differentiation Factor 15 (GDF15). GDF15 is a negative prognostic factor in CRC and promotes the differentiation of regulatory T cells (Tregs), which inhibit CD8 T-cell activation. Intriguingly, multiple models including patient-derived tumor organoids demonstrate that the loss of TXNIP and GDF15 responsiveness to oxaliplatin is associated with advanced disease or chemotherapeutic resistance, with transcriptomic or proteomic GDF15/TXNIP ratios showing potential as a prognostic biomarker. These findings illustrate a potentially common pathway where chemotherapy-induced epithelial oxidative stress drives local immune remodeling for patient benefit, with disruption of this pathway seen in refractory or advanced cases.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2080-2108"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141893178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-09-01Epub Date: 2024-08-20DOI: 10.1038/s44321-024-00120-3
Yue Wang, Hanbing Wang, Tao Shi, Xueru Song, Xin Zhang, Yue Zhang, Xuan Wang, Keying Che, Yuting Luo, Lixia Yu, Baorui Liu, Jia Wei
{"title":"Immunotherapies targeting the oncogenic fusion gene CLDN18-ARHGAP in gastric cancer.","authors":"Yue Wang, Hanbing Wang, Tao Shi, Xueru Song, Xin Zhang, Yue Zhang, Xuan Wang, Keying Che, Yuting Luo, Lixia Yu, Baorui Liu, Jia Wei","doi":"10.1038/s44321-024-00120-3","DOIUrl":"10.1038/s44321-024-00120-3","url":null,"abstract":"<p><p>The CLDN18-ARHGAP fusion gene is an oncogenic driver newly discovered in gastric cancer. It was detected in 9% (8/87) of gastric cancer patients in our center. An immunogenic peptide specifically targeting CLDN18-ARHGAP fusion gene was generated to induce neoantigen-reactive T cells, which was proved to have specific and robust anti-tumor capacity both in in vitro coculture models and in vivo xenograft gastric cancer models. Apart from the immunogenic potential, CLDN18-ARHGAP fusion gene was also found to contribute to immune suppression by inducing a regulatory T (Treg) cell-enriched microenvironment. Mechanistically, gastric cancer cells with CLDN18-ARHGAP fusion activate PI3K/AKT-mTOR-FAS signaling, which enhances free fatty acid production of gastric cancer cells to favor the survival of Treg cells. Furthermore, PI3K inhibition could effectively reverse Treg cells upregulation to enhance anti-tumor cytotoxicity of neoantigen-reactive T cells in vitro and reduce tumor growth in the xenograft gastric cancer model. Our study identified the CLDN18-ARHGAP fusion gene as a critical source of immunogenic neoepitopes, a key regulator of the tumor immune microenvironment, and immunotherapeutic applications specific to this oncogenic fusion.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2170-2187"},"PeriodicalIF":9.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11393071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
