Cell Discovery最新文献

{"title":"Generation of live mice from haploid ESCs with germline-DMR deletions or switch.","authors":"Yongjian Ma, Meng Yan, Zhenfei Xie, Hongling Zhang, Zhoujie Li, Yuanyuan Li, Suming Yang, Meiling Zhang, Wen Li, Jinsong Li","doi":"10.1038/s41421-024-00757-x","DOIUrl":"10.1038/s41421-024-00757-x","url":null,"abstract":"<p><p>Genomic imprinting is required for sexual reproduction and embryonic development of mammals, in which, differentially methylated regions (DMRs) regulate the parent-specific monoallelic expression of imprinted genes. Numerous studies on imprinted genes have highlighted their critical roles in development. However, what imprinting network is essential for development is still unclear. Here, we establish a stepwise system to reconstruct a development-related imprinting network, in which diploid embryonic stem cells (ESCs) are derived by fusing between parthenogenetic (PG)- and androgenetic (AG)-haploid embryonic stem cells (haESCs) with different DMR deletions (termed Ha-Ha-fusion system), followed by tetraploid complementation to produce all-haESC fetuses. Diploid ESCs fused between PG-haESCs carrying 8 maternally-derived DMR deletions and AG-haESCs with 2 paternally-derived DMR deletions give rise to live pups efficiently, among which, one lives to weaning. Strikingly, diploid ESCs derived from the fusion of PG-haESCs with 7 maternal DMR deletions and AG-haESCs with 2 paternal DMR deletions and maternal Snrpn-DMR deletion also support full-term embryonic development. Moreover, embryos reconstructed by injection of AG-haESCs with hypomethylated H19-DMR into oocytes with H19-DMR deletion develop into live mice sustaining inverted allelic gene expression. Together, our findings indicate that restoration of monoallelic expression of 10 imprinted regions is adequate for the full-term development of all-haESC pups, and it works irrespective of their parental origins. Meanwhile, Ha-Ha-fusion system provides a useful tool for deciphering imprinting regulation networks during embryonic development.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"11 1","pages":"5"},"PeriodicalIF":13.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11747502/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure of small HBV surface antigen reveals mechanism of dimer formation.","authors":"Xiao He, Yunlu Kang, Weiyu Tao, Jiaxuan Xu, Xiaoyu Liu, Lei Chen","doi":"10.1038/s41421-024-00768-8","DOIUrl":"10.1038/s41421-024-00768-8","url":null,"abstract":"","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"11 1","pages":"6"},"PeriodicalIF":13.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11730374/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142977877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural insights into the agonist activity of the nonpeptide modulator JR14a on C3aR.","authors":"Ping Luo, Wenwen Xin, Shimeng Guo, Xin Li, Qing Zhang, Youwei Xu, Xinheng He, Yue Wang, Wenjia Fan, Qingning Yuan, Kai Wu, Wen Hu, Youwen Zhuang, H Eric Xu, Xin Xie","doi":"10.1038/s41421-024-00765-x","DOIUrl":"10.1038/s41421-024-00765-x","url":null,"abstract":"","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"11 1","pages":"7"},"PeriodicalIF":13.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718183/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ion channel traffic jams: the significance of trafficking deficiency in long QT syndrome.","authors":"Gema Mondéjar-Parreño, Ana I Moreno-Manuel, Juan Manuel Ruiz-Robles, José Jalife","doi":"10.1038/s41421-024-00738-0","DOIUrl":"10.1038/s41421-024-00738-0","url":null,"abstract":"<p><p>A well-balanced ion channel trafficking machinery is paramount for the normal electromechanical function of the heart. Ion channel variants and many drugs can alter the cardiac action potential and lead to arrhythmias by interfering with mechanisms like ion channel synthesis, trafficking, gating, permeation, and recycling. A case in point is the Long QT syndrome (LQTS), a highly arrhythmogenic disease characterized by an abnormally prolonged QT interval on ECG produced by variants and drugs that interfere with the action potential. Disruption of ion channel trafficking is one of the main sources of LQTS. We review some molecular pathways and mechanisms involved in cardiac ion channel trafficking. We highlight the importance of channelosomes and other macromolecular complexes in helping to maintain normal cardiac electrical function, and the defects that prolong the QT interval as a consequence of variants or the effect of drugs. We examine the concept of \"interactome mapping\" and illustrate by example the multiple protein-protein interactions an ion channel may undergo throughout its lifetime. We also comment on how mapping the interactomes of the different cardiac ion channels may help advance research into LQTS and other cardiac diseases. Finally, we discuss how using human induced pluripotent stem cell technology to model ion channel trafficking and its defects may help accelerate drug discovery toward preventing life-threatening arrhythmias. Advancements in understanding ion channel trafficking and channelosome complexities are needed to find novel therapeutic targets, predict drug interactions, and enhance the overall management and treatment of LQTS patients.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"11 1","pages":"3"},"PeriodicalIF":13.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11717978/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated proteogenomic characterization of ampullary adenocarcinoma.","authors":"Qiao Zhang, Xiaomeng Xu, Dongxian Jiang, Yunzhi Wang, Haixing Wang, Jiajun Zhu, Shaoshuai Tang, Ronghua Wang, Shuang Zhao, Kai Li, Jinwen Feng, Hang Xiang, Zhenmei Yao, Ning Xu, Rundong Fang, Wenjia Guo, Yu Liu, Yingyong Hou, Chen Ding","doi":"10.1038/s41421-024-00742-4","DOIUrl":"https://doi.org/10.1038/s41421-024-00742-4","url":null,"abstract":"<p><p>Ampullary adenocarcinoma (AMPAC) is a rare and heterogeneous malignancy. Here we performed a comprehensive proteogenomic analysis of 198 samples from Chinese AMPAC patients and duodenum patients. Genomic data illustrate that 4q loss causes fatty acid accumulation and cell proliferation. Proteomic analysis has revealed three distinct clusters (C-FAM, C-AD, C-CC), among which the most aggressive cluster, C-AD, is associated with the poorest prognosis and is characterized by focal adhesion. Immune clustering identifies three immune clusters and reveals that immune cluster M1 (macrophage infiltration cluster) and M3 (DC cell infiltration cluster), which exhibit a higher immune score compared to cluster M2 (CD4⁺ T-cell infiltration cluster), are associated with a poor prognosis due to the potential secretion of IL-6 by tumor cells and its consequential influence. This study provides a comprehensive proteogenomic analysis for seeking for better understanding and potential treatment of AMPAC.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"11 1","pages":"2"},"PeriodicalIF":13.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural basis for tRNA mimicry by mascRNA and menRNA.","authors":"Yuanlin He, Jie Deng, Xiaowei Lin, Zhizhong Lu, Liangliang Wang, Liang Xu, Yin Zhang, Jia Wang, Lin Huang","doi":"10.1038/s41421-024-00761-1","DOIUrl":"10.1038/s41421-024-00761-1","url":null,"abstract":"","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"10 1","pages":"128"},"PeriodicalIF":13.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11693755/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The guided fire from within: intratumoral administration of mRNA-based vaccines to mobilize memory immunity and direct immune responses against pathogen to target solid tumors.","authors":"Renhao Li, Jing-Chu Hu, Li Rong, Yige He, Xiaolei Wang, Xuansheng Lin, Wenjun Li, Yangfan Wu, Chaiyaporn Kuwentrai, Canhui Su, Thomas Yau, Ivan Fan-Ngai Hung, Xiang Gao, Jian-Dong Huang","doi":"10.1038/s41421-024-00743-3","DOIUrl":"10.1038/s41421-024-00743-3","url":null,"abstract":"<p><p>We investigated a novel cancer immunotherapy strategy that effectively suppresses tumor growth in multiple solid tumor models and significantly extends the lifespan of tumor-bearing mice by introducing pathogen antigens into tumors via mRNA-lipid nanoparticles. The pre-existing immunity against the pathogen antigen can significantly enhance the efficacy of this approach. In mice previously immunized with BNT162b2, an mRNA-based COVID-19 vaccine encoding the spike protein of the SARS-CoV-2 virus, intratumoral injections of the same vaccine efficiently tagged the tumor cells with mRNA-expressed spike protein. This action rapidly mobilized the pre-existing memory immunity against SARS-CoV-2 to kill the cancer cells displaying the spike protein, while concurrently reprogramming the tumor microenvironment (TME) by attracting immune cells. The partial elimination of tumor cells in a normalized TME further triggered extensive tumor antigen-specific T cell responses through antigen spreading, eventually resulting in potent and systemic tumor-targeting immune responses. Moreover, combining BNT162b2 treatment with anti-PD-L1 therapy yielded a more substantial therapeutic impact, even in \"cold tumor\" types that are typically less responsive to treatment. Given that the majority of the global population has acquired memory immunity against various pathogens through infection or vaccination, we believe that, in addition to utilizing the widely held immune memory against SARS-CoV-2 via COVID-19 vaccine, mRNA vaccines against other pathogens, such as Hepatitis B Virus (HBV), Common Human Coronaviruses (HCoVs), and the influenza virus, could be rapidly transitioned into clinical use and holds great promise in treating different types of cancer. The extensive selection of pathogen antigens expands therapeutic opportunities and may also overcome potential drug resistance.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"10 1","pages":"127"},"PeriodicalIF":13.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11693766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: Single-cell and spatial proteo-transcriptomic profiling reveals immune infiltration heterogeneity associated with neuroendocrine features in small cell lung cancer.","authors":"Ying Jin, Yuefeng Wu, Alexandre Reuben, Liang Zhu, Carl M Gay, Qingzhe Wu, Xintong Zhou, Haomin Mo, Qi Zheng, Junyu Ren, Zhaoyuan Fang, Teng Peng, Nan Wang, Liang Ma, Yun Fan, Hai Song, Jianjun Zhang, Ming Chen","doi":"10.1038/s41421-024-00755-z","DOIUrl":"10.1038/s41421-024-00755-z","url":null,"abstract":"","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"10 1","pages":"126"},"PeriodicalIF":13.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659314/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Packaged release and targeted delivery of cytokines by migrasomes in circulation.","authors":"Haifeng Jiao, Xiaopeng Li, Ying Li, Ziyi Guo, Yuzhuo Yang, Yiqun Luo, Xiaoyu Hu, Li Yu","doi":"10.1038/s41421-024-00749-x","DOIUrl":"10.1038/s41421-024-00749-x","url":null,"abstract":"<p><p>In dynamic systems like the circulatory system, establishing localized cytokine gradients is challenging. Upon lipopolysaccharide (LPS) stimulation, we observed that monocytes release numerous migrasomes enriched with inflammatory cytokines, such as TNF-α and IL-6. These cytokines are transported into migrasomes via secretory carriers, leading to their immediate exocytosis or eventual release from detached migrasomes. We successfully isolated TNF-α and IL-6-enriched, monocyte-derived migrasomes from the blood of LPS-treated mice. Total secretion analysis revealed a substantial amount of TNF-α and IL-6 released in a migrasome-packaged form. Thus, detached, monocyte-derived migrasomes represent a type of extracellular vesicle highly enriched with cytokines. Physiologically, these cytokine-laden migrasomes rapidly accumulate at local sites of inflammation, effectively creating a concentrated source of cytokines. Our research uncovers novel mechanisms for cytokine release and delivery, providing new insights into immune response modulation.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"10 1","pages":"121"},"PeriodicalIF":13.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625823/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The comprehensive SARS-CoV-2 'hijackome' knowledge base.","authors":"Sini Huuskonen, Xiaonan Liu, Ina Pöhner, Taras Redchuk, Kari Salokas, Rickard Lundberg, Sari Maljanen, Milja Belik, Arttu Reinholm, Pekka Kolehmainen, Antti Tuhkala, Garima Tripathi, Pia Laine, Sergei Belanov, Petri Auvinen, Maria Vartiainen, Salla Keskitalo, Pamela Österlund, Larissa Laine, Antti Poso, Ilkka Julkunen, Laura Kakkola, Markku Varjosalo","doi":"10.1038/s41421-024-00748-y","DOIUrl":"10.1038/s41421-024-00748-y","url":null,"abstract":"<p><p>The continuous evolution of SARS-CoV-2 has led to the emergence of several variants of concern (VOCs) that significantly affect global health. This study aims to investigate how these VOCs affect host cells at proteome level to better understand the mechanisms of disease. To achieve this, we first analyzed the (phospho)proteome changes of host cells infected with Alpha, Beta, Delta, and Omicron BA.1 and BA.5 variants over time frames extending from 1 to 36 h post infection. Our results revealed distinct temporal patterns of protein expression across the VOCs, with notable differences in the (phospho)proteome dynamics that suggest variant-specific adaptations. Specifically, we observed enhanced expression and activation of key components within crucial cellular pathways such as the RHO GTPase cycle, RNA splicing, and endoplasmic reticulum-associated degradation (ERAD)-related processes. We further utilized proximity biotinylation mass spectrometry (BioID-MS) to investigate how specific mutation of these VOCs influence viral-host protein interactions. Our comprehensive interactomics dataset uncovers distinct interaction profiles for each variant, illustrating how specific mutations can change viral protein functionality. Overall, our extensive analysis provides a detailed proteomic profile of host cells for each variant, offering valuable insights into how specific mutations may influence viral protein functionality and impact therapeutic target identification. These insights are crucial for the potential use and design of new antiviral substances, aiming to enhance the efficacy of treatments against evolving SARS-CoV-2 variants.</p>","PeriodicalId":9674,"journal":{"name":"Cell Discovery","volume":"10 1","pages":"125"},"PeriodicalIF":13.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11628605/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142799322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}