更新于：2024-11-01

DHX33

更新于：2024-11-01

基本信息

别名

ATP-dependent RNA helicase DHX33、DDX33、DEAH box protein 33

+ [4]

简介

Implicated in nucleolar organization, ribosome biogenesis, protein synthesis and cytoplasmic dsRNA sensing (By similarity) (PubMed:21930779, PubMed:23871209, PubMed:26100019). Stimulates RNA polymerase I transcription of the 47S precursor rRNA. Associates with ribosomal DNA (rDNA) loci where it is involved in POLR1A recruitment (PubMed:21930779). In the cytoplasm, promotes elongation-competent 80S ribosome assembly at the late stage of mRNA translation initiation (PubMed:26100019). Senses cytosolic dsRNA mediating NLRP3 inflammasome formation in macrophages and type I interferon production in myeloid dendritic cells (PubMed:23871209). Required for NLRP3 activation induced by viral dsRNA and bacterial RNA (PubMed:23871209). In dendritic cells, required for induction of type I interferon production induced by cytoplasmic dsRNA via the activation of MAPK and NF-kappa-B signaling pathways (By similarity).

关联

项与 DHX33 相关的药物

KY-386

靶点

DHX33

作用机制

DHX33 抑制剂

在研机构

深圳开悦生命科技有限公司初创企业

原研机构

深圳开悦生命科技有限公司初创企业

在研适应症

晚期恶性实体瘤 [+3]

非在研适应症-

最高研发阶段临床1期

首次获批国家/地区-

首次获批日期1800-01-20

项与 DHX33 相关的临床试验

CTR20243710 / Not yet recruiting临床1期

一项评估KY386在DHX33阳性的复发/难治性晚期恶性实体瘤患者中的安全性、耐受性、药代动力学和初步抗肿瘤活性的开放性、剂量递增和剂量扩展的I期研究

剂量递增阶段：主要目的：评估KY386在复发/难治性晚期恶性实体瘤患者中的安全性、耐受性和剂量限制性毒性。确定KY386治疗复发/难治性晚期恶性实体瘤患者的最大耐受剂量/最大给药剂量和扩展期推荐剂量。次要目的：评估KY386在复发/难治性晚期恶性实体瘤患者中的药代动力学特征。评估KY386在复发/难治性晚期恶性实体瘤患者中的初步抗肿瘤活性。剂量扩展阶段：主要目的：评估KY386在DHX33阳性的复发/难治性晚期恶性实体瘤患者中的安全性、耐受性和初步抗肿瘤活性。确定KY386在DHX33阳性的复发/难治性晚期恶性实体瘤患者中的II期临床研究推荐剂量。次要目的：评估KY386在DHX33阳性的复发/难治性晚期恶性实体瘤患者中的PK特征。探索性目的（适用于各阶段）：探索KY386的暴露量/剂量与安全性以及临床疗效之间的关系。探索KY386的药效动力学特征。

开始日期-

申办/合作机构

深圳开悦生命科技有限公司初创企业

100 项与 DHX33 相关的临床结果

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100 项与 DHX33 相关的转化医学

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0 项与 DHX33 相关的专利（医药）

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103

项与 DHX33 相关的文献（医药）

2024-07-02·ACS Omega

An RNA Helicase DHX33 Inhibitor Shows Broad Anticancer Activity via Inducing Ferroptosis in Cancer Cells

Article

作者: Liang, Yingying ; Wen, Fuyu ; Deng, Yuanlian ; Zhang, Yandong ; Liao, Deqing ; Tang, Xiyu

RNA helicase DHX33 has been identified as a critical factor promoting cancer development. In the present study, a previously developed small molecule inhibitor for DHX33, KY386, was found to robustly kill cancer cells via a new path, the ferroptosis pathway. Mechanistically, DHX33 promotes the expression of critical players in lipid metabolism including FADS1, FADS2, and SCD1 genes, thereby sensitizing cancer cells to ferroptosis mediated cell death. Our study reveals a novel mechanism of DHX33 in promoting tumorigenesis and highlights that pharmacological targeting DHX33 can be a feasible option in human cancers. Normally differentiated cells are insensitive to DHX33 inhibition, and DHX33 inhibitors have little cellular toxicity in vitro and in vivo. Our studies demonstrated that DHX33 inhibitors can be promising anticancer agents with great potential for cancer treatment.

2024-05-31·The Journal of Biochemistry

Formation of the NLRP3 inflammasome inhibits stress granule assembly by multiple mechanisms

Article

作者: Takekawa, Mutsuhiro ; Nakamura, Takanori ; Kubota, Yuji ; Yoshioka, Daisuke

AbstractProper regulation of cellular response to environmental stress is crucial for maintaining biological homeostasis and is achieved by the balance between cell death processes, such as the formation of the pyroptosis-inducing NLRP3 inflammasome, and pro-survival processes, such as stress granule (SG) assembly. However, the functional interplay between these two stress-responsive organelles remains elusive. Here, we identified DHX33, a viral RNA sensor for the NLRP3 inflammasome, as a SG component, and the SG-nucleating protein G3BP as an NLRP3 inflammasome component. We also found that a decrease in intracellular potassium (K+) concentration, a key ‘common’ step in NLRP3 inflammasome activation, markedly inhibited SG assembly. Therefore, when macrophages are exposed to stress stimuli with the potential to induce both SGs and the NLRP3 inflammasome, such as cytoplasmic poly(I:C) stimulation, they preferentially form the NLRP3 inflammasome but avoid SG assembly by sequestering G3BP into the inflammasome and by inducing a reduction in intracellular K+ levels. Thus, under such conditions, DHX33 is primarily utilized as a viral RNA sensor for the inflammasome. Our data reveal the functional crosstalk between NLRP3 inflammasome-mediated pyroptosis and SG-mediated cell survival pathways and delineate a molecular mechanism that regulates cell-fate decisions and anti-viral innate immunity under stress.

2024-05-16·Oncotarget

The anticancer potential of the CLK kinases inhibitors 1C8 and GPS167 revealed by their impact on the epithelial-mesenchymal transition and the antiviral immune response

Article

作者: Sauvageau, Martin ; Toutant, Johanne ; Tyers, Mike ; Huard, Caroline ; Gravel-Trudeau, Alice ; Salvetti, Anna ; Shkreta, Lulzim ; Ehresmann, Sophie ; Boudreault, Pierre-Luc ; Comeau, Christian ; Grierson, David ; Delannoy, Aurélie ; Coulombe-Huntington, Jasmin ; Chabot, Benoit ; Delbrouck, Julien A ; Durantel, David

The diheteroarylamide-based compound 1C8 and the aminothiazole carboxamide-related compound GPS167 inhibit the CLK kinases, and affect the proliferation of a broad range of cancer cell lines. A chemogenomic screen previously performed with GPS167 revealed that the depletion of components associated with mitotic spindle assembly altered sensitivity to GPS167. Here, a similar screen performed with 1C8 also established the impact of components involved in mitotic spindle assembly. Accordingly, transcriptome analyses of cells treated with 1C8 and GPS167 indicated that the expression and RNA splicing of transcripts encoding mitotic spindle assembly components were affected. The functional relevance of the microtubule connection was confirmed by showing that subtoxic concentrations of drugs affecting mitotic spindle assembly increased sensitivity to GPS167. 1C8 and GPS167 impacted the expression and splicing of transcripts in pathways relevant to tumor progression, including MYC targets and the epithelial mesenchymal transition (EMT). Finally, 1C8 and GPS167 altered the expression and alternative splicing of transcripts involved in the antiviral immune response. Consistent with this observation, depleting the double-stranded RNA sensor DHX33 suppressed GPS167-mediated cytotoxicity on HCT116 cells. Our study uncovered molecular mechanisms through which 1C8 and GPS167 affect cancer cell proliferation as well as processes critical for metastasis.

项与 DHX33 相关的新闻（医药）

2024-06-23

·医药观澜

20多款1类新药在中国获批临床，来自辉瑞、默沙东、海思科等公司

▎药明康德内容团队报道根据中国国家药监局药品审评中心（CDE）官网公示，近两周以来，有20余款1类新药首次获得临床试验默示许可（IND）。通过梳理，这些新药涵盖小分子新药、分子胶、抗体偶联药物（ADC）、单抗、三抗等，涉及靶点包括了DGKα、LSD1、THR-β、DHX33、KRAS G12D、CD38等等。本文将对其中部分产品进行简要介绍。海思科：HSK42360片作用机制：BRAF V600抑制剂适应症：BRAF V600突变晚期实体瘤根据海思科公告介绍，HSK42360是该公司自主研发的一种靶向BRAF V600突变且具有脑透性的小分子抑制剂，临床拟用于治疗BRAF V600突变晚期实体瘤。临床前研究结果显示，HSK42360在多个BRAF V600突变的实体瘤药效模型中展现出较好的抗肿瘤药效，同时也表现出了良好的耐受性和较大的安全窗，是一款具有开发潜力的小分子抗肿瘤药物。 CASI Pharmaceuticals：CID-103注射液作用机制：抗CD38单抗适应症：多发性骨髓瘤 CID-103是凯信远达（CASI）在研的一款可特异性识别人CD38表位的单克隆抗体，可通过激活效应T细胞和NK细胞来达到杀死肿瘤细胞的目的。该产品本次在中国获批临床，适用于既往接受治疗的复发和难治性多发性骨髓瘤（R/R MM）成年患者的治疗。值得一提的是，凯信远达于2022年5月与天石同达医药达成合作，授予后者CID-103用于治疗自身免疫疾病的全球独家许可权。开悦生命：KY386注射用浓溶液作用机制：DHX33抑制剂适应症：DHX33阳性恶性肿瘤根据开悦生命新闻稿介绍，KY386注射用浓溶液是该公司自主研发的一款高效、选择性的新型DHX33抑制剂，本次获批临床的适应症为DHX33阳性的复发/难治性晚期恶性肿瘤。DHX33是一种细胞内的RNA解旋酶家族蛋白，具有促进细胞增殖作用，在癌症的发病机制上发挥着重要作用。开悦生命在RNA解旋酶药物研发领域有逾十年的基础研究经验。辉瑞：PF-07264660注射液、PF-07275315注射液作用机制：三抗适应症：特应性皮炎辉瑞（Pfizer）两款1类新药获批临床，二者均拟开发治疗成人中度至重度特应性皮炎。根据辉瑞公开资料，这两款产品均为三特异性抗体，其中PF-07264660为抗IL-4/IL-13/IL-33三抗，PF-07275315为抗IL-4/IL-13/TSLP三抗。这两款三特异性抗体在更有效阻断IL-4/IL-13信号通路的同时，可以通过抑制TSLP产生更广泛的效果，或者通过抑制IL-33通路进一步抑制瘙痒，有望对治疗特应性皮炎产生更好的疗效。百时美施贵宝：golcadomide胶囊作用机制：分子胶适应症：大B细胞淋巴瘤百时美施贵宝旗下新基（Celgene）公司1类新药golcadomide胶囊获批临床，拟开发用于未经治的高危大B细胞淋巴瘤。这是一款新型E3泛素连接酶Cereblon（CELMoD）分子，针对疾病特点做了优化，使其主要分布在淋巴器官。在针对B细胞淋巴瘤的1/2期临床研究中，该产品的客观缓解率（ORR）达到91.1%。截至目前，百时美施贵宝公司已有多款分子胶新药在中国获批或启动3期临床。默沙东：bomedemstat胶囊作用机制：LSD1抑制剂适应症：原发性血小板增多症 Bomedemstat胶囊（MK-3543）是一款口服赖氨酸特异性脱甲基酶1（LSD1）抑制剂。2022年11月，默沙东（MSD）以约13.5亿美元现金收购Imago公司，从而获得后者这款处于2期临床阶段的主要候选药物。该产品本次在中国获批临床，拟开发治疗原发性血小板增多症。LSD1是一种表观遗传调节蛋白，可调节骨髓干细胞的成熟，亦在许多血液肿瘤中扮演重要角色，被认为是治疗许多高死亡率血液肿瘤的新兴靶点之一。拜耳：BAY 2862789口服溶液、BAY 3018250 作用机制：DGKα抑制剂、抗a2AP的蛋白质药物适应症：晚期实体瘤、脑卒中拜耳（Bayer）公司两款1类新药在中国获批临床。BAY 2862789口服溶液为一款小分子DGKα抑制剂，拟用于治疗晚期实体瘤，DGKα特异性抑制剂治疗癌症有望发挥抑制癌细胞增殖、同时激活T细胞功能的双重抗癌作用。BAY 3018250为一款抗a2AP的蛋白质类药物，拟用于治疗急性缺血性脑卒中。α2-抗纤溶酶（a2AP）是一种纤溶酶抑制剂，与缺血性卒中、组织纤溶酶原激活剂（rt-PA）治疗失败的风险增加有关。安斯泰来：ASP3082注射液作用机制：KRAS G12D蛋白降解剂适应症：KRAS G12D突变实体瘤安斯泰来（Astellas）在研的ASP3082注射液在中国获批临床，拟开发用于携带KRAS G12D突变的既往经治局部晚期（不可切除）或转移性恶性实体瘤。这是一款具有高效选择性的新型KRAS G12D蛋白降解剂，它结合并选择性靶向KRAS G12D突变蛋白，通过募集E3泛素连接酶蛋白进行降解。该产品正在国际范围内开展1期临床研究。劲方医药：GFH375片作用机制：KRAS G12D蛋白降解剂适应症：KRAS G12D突变实体瘤劲方医药在研的口服KRAS G12D（ON/OFF）抑制剂GFH375片获批临床，拟开发治疗KRAS G12D突变阳性的晚期实体瘤患者。该产品通过非共价形式结合KRAS G12D蛋白，抑制其与下游效应蛋白结合，最终高效抑制肿瘤细胞增殖。2023年8月，劲方医药与Verastem Oncology达成一项超6亿美元合作，后者获得三款由劲方医药开发的靶向RAS通路创新疗法在大中华区之外的全球开发和商业化权利，其中就包括了这款GFH375。图片来源：123RF 凯思凯迪：CS060304片作用机制：新型THR-β激动剂适应症：非酒精性脂肪性肝炎凯思凯迪在研的1类新药CS060304片获得临床试验默示许可，拟开发治疗非酒精性脂肪性肝病/非酒精性脂肪性肝炎（NASH，又称MASH）。这是一款靶向甲状腺激素受体β（THR-β）的小分子激动剂，可高度特异性富集于肝组织。该产品呈现出积极突出的临床前数据，尤其在NASH小鼠模型中可明显改善NAS评分和纤维化，具有起效剂量低、药效显著且耐受性良好的特点。征祥医药：ZX-8177片作用机制：ENPP1抑制剂适应症：晚期实体瘤征祥医药在研的小分子ENPP1抑制剂ZX-8177片获批临床，拟开发治疗晚期实体瘤。ENPP1全称为外核苷酸焦磷酸酶/磷酸二酯酶-1，可水解细胞外2'3'-cGAMP，减弱免疫刺激肿瘤微环境，从而促进肿瘤进展。因此，在肿瘤环境中阻断ENPP1是一种通过改善先天免疫反应来对抗肿瘤的潜在策略。除了上述产品，近两周还有其他1类新药在中国首次获批IND，比如恒瑞医药两款1类新药HRS-7249注射液和HRS-9813片获批临床，分别拟用于治疗高脂血症和特发性肺纤维化；百利天恒的ADC产品BL-M17D1、科伦博泰的ADC产品注射用SKB518获批临床，拟开发治疗实体瘤等等，限于篇幅，此处不再一一介绍。希望这些1类新药后续临床研究进展顺利，早日取得突破，造福患者。参考资料： [1]中国国家药监局药品审评中心（CDE）官网.Retrieved June 22，2024, From https://www.cde.org.cn/main/xxgk/listpage/4b5255eb0a84820cef4ca3e8b6bbe20c [2]各公司官网及公开资料本文来自药明康德内容团队，欢迎个人转发至朋友圈，谢绝媒体或机构未经授权以任何形式转载至其他平台。转载授权请在「医药观澜」微信公众号留言联系我们。其他合作需求，请联系wuxi_media@wuxiapptec.com。免责声明：药明康德内容团队专注介绍全球生物医药健康研究进展。本文仅作信息交流之目的，文中观点不代表药明康德立场，亦不代表药明康德支持或反对文中观点。本文也不是治疗方案推荐。如需获得治疗方案指导，请前往正规医院就诊。

临床申请抗体药物偶联物申请上市临床1期细胞疗法