Harnessing combined p19Arf and interferon-beta gene transfer as an inducer of immunogenic cell death and mediator of cancer immunotherapy
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Harnessing combined p19Arf and interferon-beta gene transfer as an inducer of immunogenic cell death and mediator of cancer immunotherapyKeywords:
Mediator
Inducer
Immunogenic cell death
Cancer Immunotherapy
BETA (programming language)
Gene transfer
Inducer
Dissociation constant
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Immunogenic cell death (ICD) is a type of cancer cell death triggered by certain chemotherapeutic drugs, oncolytic viruses, physicochemical therapies, photodynamic therapy, and radiotherapy. It involves the activation of the immune system against cancer in immunocompetent hosts. ICD comprises the release of damage-associated molecular patterns (DAMPs) from dying tumor cells that result in the activation of tumor-specific immune responses, thus eliciting long-term efficacy of anticancer drugs by combining direct cancer cell killing and antitumor immunity. Remarkably, subcutaneous injection of dying tumor cells undergoing ICD has been shown to provoke anticancer vaccine effects in vivo. DAMPs include the cell surface exposure of calreticulin (CRT) and heat-shock proteins (HSP70 and HSP90), extracellular release of adenosine triphosphate (ATP), high-mobility group box-1 (HMGB1), type I IFNs and members of the IL-1 cytokine family. In this review, we discuss the cell death modalities connected to ICD, the DAMPs exposed during ICD, and the mechanism by which they activate the immune system. Finally, we discuss the therapeutic potential and challenges of harnessing ICD in cancer immunotherapy.
Immunogenic cell death
Cancer Immunotherapy
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The relative amounts of hemoglobin (Hb) major and Hb minor accumulated during induction of erythrodifferentiation in mouse erythroleukemia (MEL) cells were studied. The ratio of major to minor was found to depend not only upon the inducer tested (as reported previously by others), but also upon the concentration of the inducer and the time of exposure to the inducer as well as the specific cell line of MEL cells studied. At concentrations required for optimal induction of differentiation, certain agents led to the accumulation of predominantly Hb major, but suboptimal concentrations of the same inducers led to predominantly Hb minor accumulation. After a relatively short induction time (2 da) utilizing a given inducer either the level of Hb minor was higher than that of Hb major or the levels of the two Hb's were approximately equal, but after longer induction periods (3-7 da) Hb major was more abundant than Hb minor. In addition, it was found that the three proteases tested induced predominantly Hb minor. The addition of suboptimal concentrations of low molecular weight inducers acted synergistically with a given protease to produce a high yield of Hb-containing cells. When these agents were added singly they induced relatively low Hb major/Hb minor ratios, but when a low molecular weight inducer was added together with a protease in a “synergistic” combination, elevated ratios were induced. The proportions of hemoglobin types induced in MEL cells may be related in part to the intensity of the induction response. In view of these data, classifications of inducers based solely on the ratios of Hb types produced must be guarded.
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Cereus
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The article represents the research results of a centrifugal inducer stage with inducer bush. We determined the optimal inducer bush design that would improve the cavitation erosion characteristics without deteriorating the energy levels and preserving overall dimensions of the centrifugal inducer stage at the same time.
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Cavitation Erosion
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Immunogenic cell death
Pyroptosis
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During the development of the mammalian cardiovascular system, the formation of a mature and fully functional cardiovascular system needs the fine coordination of the morphogenesis of various molecules, cells, tissues, and organs. Abnormalities in these processes usually lead to serious congenital heart defects. The determination and maintenance of cell fate in multicellular organisms depend to a large extent on the precise timing and control of RNA polymerase II (Pol II) transcription, and the transcription Mediator complex plays an irreplaceable role in the Pol II transcription process. Mediator is an evolutionarily conserved multi-subunit protein complex, including four parts: head, middle, tail, and kinase. It is a functional bridge between transcription factors and basic transcription machines. In recent years, due to the key role of Mediator in the transcriptional regulation of gene expression, many of human heart diseases have been confirmed to be related to specific Mediator gene mutations, such as heart valve defects, translocation of the great arteries, DiGeorge syndrome and some cardiovascular diseases related to energy homeostasis. In this review, we summarize the role of Mediator in cardiovascular development and disease, focusing on the role of Mediator in the development of cardiovascular disease, and provides a broad idea for the research on Mediator-related cardiovascular system development and diseases.哺乳动物心血管系统发育过程中,各分子、细胞和组织器官形态发生过程的精细协调对于形成成熟且功能齐全的心血管系统是不可或缺的,这些过程出现异常通常会导致严重的先天性心血管发育缺陷。多细胞生物中细胞命运的决定和维持在很大程度上依赖于对RNA聚合酶II (Pol II)转录活性的时空精确调控,而转录中介体(Mediator)在Pol II转录过程中起着重要的协同作用。Mediator是一种进化上保守的多亚基蛋白质复合体,包括头部、中部、尾部和激酶部四个部分,是转录因子和基础转录机器之间的功能联系的桥梁。近年来,鉴于Mediator在基因表达中的关键作用,越来越多的人类心血管疾病被证实与特定的Mediator基因突变相关,如心脏瓣膜缺陷、大动脉转位、DiGeorge综合征及一些与能量稳态失衡相关的心血管疾病。本文就Mediator在心血管系统发育和疾病中的作用进行综述,重点讨论Mediator对转录调控的影响在心血管疾病发生发展中的作用,旨在为与Mediator相关的心血管系统发育和疾病的研究提供广阔的研究思路。.
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RNA polymerase II
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Catabolism
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