Cell Death Discovery最新文献

筛选
英文 中文
Advancements in melanoma immunotherapy: the emergence of Extracellular Vesicle Vaccines. 黑色素瘤免疫疗法的进展:细胞外囊泡疫苗的出现。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-23 DOI: 10.1038/s41420-024-02150-9
Guijuan He, Yichuan Li, Yuyang Zeng, Yong Zhang, Qiong Jiang, Qi Zhang, Jinjin Zhu, Jun Gong
{"title":"Advancements in melanoma immunotherapy: the emergence of Extracellular Vesicle Vaccines.","authors":"Guijuan He, Yichuan Li, Yuyang Zeng, Yong Zhang, Qiong Jiang, Qi Zhang, Jinjin Zhu, Jun Gong","doi":"10.1038/s41420-024-02150-9","DOIUrl":"10.1038/s41420-024-02150-9","url":null,"abstract":"<p><p>Malignant melanoma represents a particularly aggressive type of skin cancer, originating from the pathological transformation of melanocytes. While conventional interventions such as surgical resection, chemotherapy, and radiation therapy are available, their non-specificity and collateral damage to normal cells has shifted the focus towards immunotherapy as a notable approach. Extracellular vesicles (EVs) are naturally occurring transporters, and are capable of delivering tumor-specific antigens and directly engaging in the immune response. Multiple types of EVs have emerged as promising platforms for melanoma vaccination. The effectiveness of EV-based melanoma vaccines manifests their ability to potentiate the immune response, particularly by activating dendritic cells (DCs) and CD8+ T lymphocytes, through engineering a synergy of antigen presentation and targeted delivery. Here, this review mainly focuses on the construction strategies for EV vaccines from various sources, their effects, and immunological mechanisms in treating melanoma, as well as the shortcomings and future perspectives in this field. These findings will provide novel insights into the innovative exploitation of EV-based vaccines for melanoma immune therapy.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341806/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NUP37 promotes the proliferation and invasion of glioma cells through DNMT1-mediated methylation. NUP37 通过 DNMT1 介导的甲基化促进胶质瘤细胞的增殖和侵袭。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-22 DOI: 10.1038/s41420-024-02138-5
Yongqiang Lv, Chaolian Wang, Ruoyu Liu, Shaoxian Wu, Junjun Chen, Xiao Zheng, Tianwei Jiang, Lujun Chen
{"title":"NUP37 promotes the proliferation and invasion of glioma cells through DNMT1-mediated methylation.","authors":"Yongqiang Lv, Chaolian Wang, Ruoyu Liu, Shaoxian Wu, Junjun Chen, Xiao Zheng, Tianwei Jiang, Lujun Chen","doi":"10.1038/s41420-024-02138-5","DOIUrl":"10.1038/s41420-024-02138-5","url":null,"abstract":"<p><p>Nuclear regulation has potential in cancer therapy, with the nuclear pore complex (NPC) serving as a critical channel between the nucleus and cytoplasm, playing a role in regulating various biological processes and cancer. DNA methylation, an epigenetic modification mediated by DNA methyltransferases (DNMTs), influences gene expression and cell differentiation, and is crucial for the development and progression of tumor cells. Gliomas are the most common primary brain tumors, with glioblastoma being particularly aggressive, characterized by invasiveness, migration capability, and resistance to conventional treatments, resulting in poor prognosis. Our study revealed that the expression level of NUP37 affects the proliferation and invasion of glioma cells, and that the overexpression of DNMT1 can alleviate the adverse effects caused by NUP37 depletion. These findings suggest that NUP37 promotes the proliferation and invasion of glioma cells through its interaction with DNMT1.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341718/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MiRNA-449 family is epigenetically repressed and sensitizes to doxorubicin through ACSL4 downregulation in triple-negative breast cancer. 在三阴性乳腺癌中,MiRNA-449家族受到表观遗传学抑制,并通过下调ACSL4对多柔比星敏感。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-22 DOI: 10.1038/s41420-024-02128-7
Sandra Torres-Ruiz, Iris Garrido-Cano, Ana Lameirinhas, Octavio Burgués, Cristina Hernando, María Teresa Martínez, Federico Rojo, Begoña Bermejo, Marta Tapia, Juan Antonio Carbonell-Asins, Carlos Javier Peña, Ana Lluch, Juan Miguel Cejalvo, Eduardo Tormo, Pilar Eroles
{"title":"MiRNA-449 family is epigenetically repressed and sensitizes to doxorubicin through ACSL4 downregulation in triple-negative breast cancer.","authors":"Sandra Torres-Ruiz, Iris Garrido-Cano, Ana Lameirinhas, Octavio Burgués, Cristina Hernando, María Teresa Martínez, Federico Rojo, Begoña Bermejo, Marta Tapia, Juan Antonio Carbonell-Asins, Carlos Javier Peña, Ana Lluch, Juan Miguel Cejalvo, Eduardo Tormo, Pilar Eroles","doi":"10.1038/s41420-024-02128-7","DOIUrl":"10.1038/s41420-024-02128-7","url":null,"abstract":"<p><p>Despite progress in breast cancer treatment, a significant portion of patients still relapse because of drug resistance. The involvement of microRNAs in cancer progression and chemotherapy response is well established. Therefore, this study aimed to elucidate the dysregulation of the microRNA-449 family (specifically, microRNA-449a, microRNA-449b-5p, and microRNA-449c-5p) and its impact on resistance to doxorubicin, a commonly used chemotherapeutic drug for the treatment of triple-negative breast cancer. We found that the microRNA-449 family is downregulated in triple-negative breast cancer and demonstrated its potential as a diagnostic biomarker. Besides, our findings indicate that the downregulation of the microRNA-449 family is mediated by the microRNAs-449/SIRT1-HDAC1 negative feedback loop. Moreover, it was found that the microRNA-449 family dysregulates the fatty acid metabolism by targeting ACSL4, which is a potential prognostic biomarker that mediates doxorubicin response through regulation of the drug extrusion pump ABCG2. Altogether, our results suggest that the microRNA-449 family might be a potential therapeutic target for the treatment of triple-negative breast cancer since it is implicated in doxorubicin response through ACSL4/ABCG2 axis regulation. Ultimately, our results also highlight the value of microRNAs-449 and ACSL4 as diagnostic and prognostic biomarkers in triple-negative breast cancer. Proposed model of miRNAs-449 downregulation in TNBC and doxorubicin response. MiRNAs-449 are downregulated in TNBC through a negative feedback loop with SIRT1 and HDAC1. Moreover, ACSL4 increases ABCG2 expression, thus diminishing the intracellular doxorubicin concentration and promoting doxorubicin resistance. MiRNAs-449 overexpression downregulates the ACSL4/ABCG2 axis and sensitizes doxorubicin-resistant cells to doxorubicin. Created with BioRender. TNBC: triple-negative breast cancer; DOX: doxorubicin; SIRT1: Sirtuin 1; HDAC1: Histone deacetylase 1; ACSL4: Acyl-CoA Synthetase Long-Chain Family Member 4; ABCG2: ATP-binding cassette superfamily G member 2.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Raptinal: a powerful tool for rapid induction of apoptotic cell death. 雷普替纳尔:快速诱导细胞凋亡的强大工具。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-21 DOI: 10.1038/s41420-024-02120-1
Amanda J Smith, Paul J Hergenrother
{"title":"Raptinal: a powerful tool for rapid induction of apoptotic cell death.","authors":"Amanda J Smith, Paul J Hergenrother","doi":"10.1038/s41420-024-02120-1","DOIUrl":"10.1038/s41420-024-02120-1","url":null,"abstract":"<p><p>Chemical inducers of apoptosis have been utilized for decades as tools to uncover steps of the apoptotic cascade and to treat various diseases, most notably cancer. While there are several useful compounds available, limitations in potency, universality, or speed of cell death of these pro-apoptotic agents have meant that no single compound is suitable for all (or most) purposes. Raptinal is a recently described small molecule that induces intrinsic pathway apoptosis rapidly and reliably, and consequently, has been utilized in cell culture and whole organisms for a wide range of biological studies. Its distinct mechanism of action complements the current arsenal of cytotoxic compounds, making it useful as a probe for the apoptosis pathway and other cellular processes. The rapid induction of cell death by Raptinal and its widespread commercial availability make it the pro-apoptotic agent of choice for many applications.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11335860/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linear polyubiquitylation of Gli protein regulates its protein stability and facilitates tumor growth in colorectal cancer. Gli 蛋白的线性多泛素化调节其蛋白稳定性,并促进结直肠癌的肿瘤生长。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-20 DOI: 10.1038/s41420-024-02147-4
Junyao Cheng, Linlin Xu, Yanlu Xuan, Feifei Zhou, Aidi Huang, Shaopeng Zeng, Hailong Wang, Yiting Wang, Yuan Zhan, Xiaohua Yan, Shiwen Luo, Yuan Liu, Minzhang Cheng
{"title":"Linear polyubiquitylation of Gli protein regulates its protein stability and facilitates tumor growth in colorectal cancer.","authors":"Junyao Cheng, Linlin Xu, Yanlu Xuan, Feifei Zhou, Aidi Huang, Shaopeng Zeng, Hailong Wang, Yiting Wang, Yuan Zhan, Xiaohua Yan, Shiwen Luo, Yuan Liu, Minzhang Cheng","doi":"10.1038/s41420-024-02147-4","DOIUrl":"10.1038/s41420-024-02147-4","url":null,"abstract":"<p><p>The linear ubiquitin chain assembly complex (LUBAC) mediates the linear ubiquitination of various proteins and is involved in NF-κB signaling and immune regulation. However, the function and mechanism of linear ubiquitination in regulating oncogenic signaling and tumor growth have remained poorly understood. Herein, we identified Gli proteins, key transcription factors in the Hedgehog (Hh) signaling pathway, as novel substrates of LUBAC. Linear ubiquitination stabilizes Gli proteins, leading to the noncanonical activation of Hh signaling in CRC cells. Furthermore, LUBAC facilitates tumor growth in CRC cells. Additionally, elevated expression of LUBAC components in CRC tissues was observed, and higher expression levels of these components correlated with poor prognosis in CRC patients. Interestingly, inhibition of LUBAC using either a small molecule agonist or RNA silencing specifically suppressed cell growth in CRC cells but had no effect on normal intestinal cells. Taken together, aberrant expression of LUBAC components activates Hh signaling noncanonically by mediating linear ubiquitination, promoting tumor growth in CRC, demonstrating the novel function of linear ubiquitination in regulating the protein stability of its substrates and highlighting the potential of targeting LUBAC as a therapeutic strategy in CRC.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11335874/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Long range inter-chromosomal interaction of Oct4 distal enhancer loci regulates ESCs pluripotency. 更正:Oct4 远端增强子位点的长程染色体间相互作用调控了 ESCs 的全能性。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-20 DOI: 10.1038/s41420-024-02125-w
Byoung-San Moon, David Huang, Fan Gao, Mingyang Cai, Guochang Lyu, Lei Zhang, Jun Chen, Wange Lu
{"title":"Correction: Long range inter-chromosomal interaction of Oct4 distal enhancer loci regulates ESCs pluripotency.","authors":"Byoung-San Moon, David Huang, Fan Gao, Mingyang Cai, Guochang Lyu, Lei Zhang, Jun Chen, Wange Lu","doi":"10.1038/s41420-024-02125-w","DOIUrl":"10.1038/s41420-024-02125-w","url":null,"abstract":"","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336106/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
N-ethylmaleimide-sensitive factor elicits a neuroprotection against ischemic neuronal injury by restoring autophagic/lysosomal dysfunction. N-乙基马来酰亚胺敏感因子通过恢复自噬/溶酶体功能障碍,对缺血性神经元损伤起到神经保护作用。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-18 DOI: 10.1038/s41420-024-02144-7
Miaomiao Qiu, Xiaoming Zhao, Tao Guo, Hongyun He, Yihao Deng
{"title":"N-ethylmaleimide-sensitive factor elicits a neuroprotection against ischemic neuronal injury by restoring autophagic/lysosomal dysfunction.","authors":"Miaomiao Qiu, Xiaoming Zhao, Tao Guo, Hongyun He, Yihao Deng","doi":"10.1038/s41420-024-02144-7","DOIUrl":"10.1038/s41420-024-02144-7","url":null,"abstract":"<p><p>Autophagosome-lysosome fusion defects play a critical role in driving autolysosomal dysfunction, leading to autophagic/lysosomal impairment in neurons following ischemic stroke. However, the mechanisms hindering autophagosome-lysosome fusion remain unclear. Soluble N-ethylmaleimide-sensitive factor (NSF) is an essential ATPase to reactivate STX17 and VAMP8, which are the paired molecules to mediate fusion between autophagosomes and lysosomes. However, NSF is frequently inactivated to inhibit the reactivation of STX17 and VAMP8 in ischemic neurons. Herein, we investigated whether autophagosome-lysosome fusion could be facilitated to alleviate autophagic/lysosomal impairment in ischemic neurons by over-expressing NSF. Rat model of middle cerebral artery occlusion (MCAO) and HT22 neuron ischemia model of oxygen-glucose deprivation (OGD) were prepared, respectively. The results demonstrated that NSF activity was significantly suppressed, accompanied by reduced expressions of STX17 and VAMP8 in penumbral neurons 48 h post-MCAO and in HT22 neurons 2 h post-OGD. Moreover, the attenuated autolysosome formation accompanied by autophagic/lysosomal dysfunction was observed. Thereafter, NSF activity in HT22 neurons was altered by over-expression and siRNA knockdown, respectively. After transfection with recombinant NSF-overexpressing lentiviruses, both STX17 and VAMP8 expressions were concurrently elevated to boost autophagosome-lysosome fusion, as shown by enhanced immunofluorescence intensity co-staining with LC3 and LAMP-1. Consequently, the OGD-created autophagic/lysosomal dysfunction was prominently ameliorated, as reflected by augmented autolysosomal functions and decreased autophagic substrates. By contrast, NSF knockdown conversely aggravated the autophagic/lysosomal impairment, and thereby exacerbated neurological damage. Our study indicates that NSF over-expression induces neuroprotection against ischemic neuronal injury by restoring autophagic/lysosomal dysfunction via the facilitation of autophagosome-lysosome fusion. Over-expression of NSF promotes fusion by reactivating STX17 and VAMP8. Black arrows represent the pathological process after cerebral ischemia, green arrows represent the mechanism of remission after NSF over-expression, and red arrows represent the effect on the pathological process after NSF knockdown.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11330971/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141999473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chrdl1-mediated BMP4 inhibition disrupts the balance between retinal neurons and Müller Glia. Chrdl1 介导的 BMP4 抑制会破坏视网膜神经元和 Müller 神经胶质细胞之间的平衡。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-17 DOI: 10.1038/s41420-024-02129-6
Dongmei Liu, Zeyuan Pu, Baige Li, Gao Tan, Ting Xie, Yin Shen
{"title":"Chrdl1-mediated BMP4 inhibition disrupts the balance between retinal neurons and Müller Glia.","authors":"Dongmei Liu, Zeyuan Pu, Baige Li, Gao Tan, Ting Xie, Yin Shen","doi":"10.1038/s41420-024-02129-6","DOIUrl":"10.1038/s41420-024-02129-6","url":null,"abstract":"<p><p>Chordin-like 1 (CHRDL1) is a secreted protein that serves as an endogenous antagonist of bone morphogenetic proteins (BMPs). In the developing retina, Bmp4 has been demonstrated to be essential for sustaining the proliferation of progenitor cells and facilitating the differentiation of glial cells. Despite these efforts, the precise effects of Bmp4 inhibition on the developing retina are yet to be fully understood. We sought to address this question by overexpressing Chrdl1 in the developing retina. In this study, we explored the impact of Bmp4 inhibition on the developing mouse retina by conditionally overexpressing the Bmp4 inhibitor Chrdl1. Initially, we characterized the expression patterns of Bmp4 and Chrdl1 in the developing mouse retina from E10.5 to P12.5. Additionally, we utilized various molecular markers to demonstrate that Bmp4 inhibition disrupts both neuronal and Müller glial differentiation in the developing mouse retina. Moreover, through the application of RNA-seq analysis, distinctively expressed retinal genes under the modulation of Bmp4 signaling were discerned, encompassing the upregulation of Id1/2/3/4 and Hes1/5, as well as the downregulation of Neurod1/2/4 and Bhlhe22/23. Lastly, electroretinogram (ERG) and optomotor response (OMR) assays were conducted to illustrate that Bmp4 inhibition impairs the functional connectivity of various cells in the retina and consequently affects visual function. Collectively, this study demonstrates that inhibiting Bmp4 promotes the differentiation of retinal neurons over Müller glia by activating the expression of genes associated with neuron specification. These findings offer molecular insights into the role of Bmp4 signaling in mammalian retinal development.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329631/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141995381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
L-asparaginase induces IP3R-mediated ER Ca2+ release by targeting µ-OR1 and PAR2 and kills acute lymphoblastic leukemia cells. L-天冬酰胺酶通过靶向μ-OR1和PAR2诱导IP3R介导的ER Ca2+释放,并杀死急性淋巴细胞白血病细胞。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-15 DOI: 10.1038/s41420-024-02142-9
Jung Kwon Lee, Hamza Kamran, Ki-Young Lee
{"title":"L-asparaginase induces IP3R-mediated ER Ca<sup>2+</sup> release by targeting µ-OR1 and PAR2 and kills acute lymphoblastic leukemia cells.","authors":"Jung Kwon Lee, Hamza Kamran, Ki-Young Lee","doi":"10.1038/s41420-024-02142-9","DOIUrl":"10.1038/s41420-024-02142-9","url":null,"abstract":"<p><p>L-asparaginase is a standard therapeutic option for acute lymphoblastic leukemia (aLL), a hematologic cancer that claims the most lives of pediatric cancer patients. Previously, we demonstrated that L-asparaginase kills aLL cells via a lethal rise in [Ca<sup>2+</sup>]<sub>i</sub> due to IP3R-mediated ER Ca<sup>2+</sup> release followed by calpain-1-Bid-caspase-3/12 activation (Blood, 133, 2222-2232). However, upstream targets of L-asparaginase that trigger IP3R-mediated ER Ca<sup>2+</sup> release remain elusive. Here, we show that L-asparaginase targets µ-OR1 and PAR2 and induces IP3R-mediated ER Ca<sup>2+</sup> release in aLL cells. In doing so, µ-OR1 plays a major role while PAR2 plays a minor role. Utilizing PAR2- and µ-OR1-knockdown cells, we demonstrate that L-asparaginase stimulation of µ-OR1 and PAR2 relays its signal via G<sub>αi</sub> and G<sub>αq</sub>, respectively. In PAR2-knockdown cells, stimulation of adenylate cyclase with forskolin or treatment with 8-CPT-cAMP reduces L-asparaginase-induced µ-OR1-mediated ER Ca<sup>2+</sup> release, suggesting that activation of µ-OR1 negatively regulates AC and cAMP. In addition, the PKA inhibitor 14-22 amide (myr) alone evokes ER Ca<sup>2+</sup> release, and subsequent L-asparaginase treatment does not induce further ER Ca<sup>2+</sup> release, indicating the involvement of PKA inhibition in L-asparaginase-induced µ-OR1-mediated ER Ca<sup>2+</sup> release, which can bypass the L-asparaginase-µ-OR1-AC-cAMP loop. This coincides with (a) the decreases in PKA-dependent inhibitory PLCβ3 Ser1105 phosphorylation, which prompts PLCβ3 activation and ER Ca<sup>2+</sup> release, and (b) BAD Ser118 phosphorylation, which leads to caspase activation and apoptosis. Thus, our findings offer new insights into the Ca<sup>2+</sup>-mediated mechanisms behind L-asparaginase-induced aLL cell apoptosis and suggest that PKA may be targeted for therapeutic intervention for aLL.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11327372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141987511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regulation of Hippo/YAP axis in colon cancer progression by the deubiquitinase JOSD1. 去泛素化酶 JOSD1 在结肠癌进展过程中对 Hippo/YAP 轴的调控。
IF 6.1 2区 生物学
Cell Death Discovery Pub Date : 2024-08-14 DOI: 10.1038/s41420-024-02136-7
Yanan Sun, Dongyi Liu, Xiaobo Zhang, Peng Su, Xin Li, Zhongbo Li, Yingwen Gai, Jingying Li, Zhiyong Yang, Yinlu Ding, Jian Zhu, Xiaodong Tan
{"title":"Regulation of Hippo/YAP axis in colon cancer progression by the deubiquitinase JOSD1.","authors":"Yanan Sun, Dongyi Liu, Xiaobo Zhang, Peng Su, Xin Li, Zhongbo Li, Yingwen Gai, Jingying Li, Zhiyong Yang, Yinlu Ding, Jian Zhu, Xiaodong Tan","doi":"10.1038/s41420-024-02136-7","DOIUrl":"10.1038/s41420-024-02136-7","url":null,"abstract":"<p><p>Colon cancer is a prevalent malignancy, while recent studies revealed the dys-regulation of Hippo signaling as the important driver for colon cancer progression. Several studies have indicated that post-translational modifications on YAP play crucial roles in both Hippo signaling activity and cancer progression. This raises a puzzling question about why YAP/TAZ, an auto-inhibitory pathway, is frequently over-activated in colon cancer, despite the suppressive cascade of Hippo signaling remaining operational. The protein stability of YAP is subject to a tiny balance between ubiquitination and deubiquitination processes. Through correlation analysis of DUBs (deubiquitinases) expression and Hippo target gene signature in colon cancer samples, we found JOSD1 as a critical deubiquitinase for Hippo signaling and colon cancer progression. JOSD1 could facilitate colon cancer progression and in colon cancer, inhibition of JOSD1 via shRNA has been demonstrated to impede tumorigenesis. Furthermore, molecular mechanism studies have elucidated that JOSD1 enhances the formation of the Hippo/YAP transcriptome by impeding K48-linked polyubiquitination on YAP. ChIP assays have shown that YAP binds to JOSD1's promoter region, promoting its gene transcription. These results suggest that JOSD1 is involved in both activating and being targeted by the Hippo signaling pathway in colon cancer. Consequently, a positive regulatory loop between JOSD1 and Hippo signaling has been identified, underscoring their interdependence during colon cancer progression. Thus, targeting JOSD1 may represent a promising therapeutic approach for managing colon cancer.</p>","PeriodicalId":9735,"journal":{"name":"Cell Death Discovery","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11325045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141981818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信