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Epigenetic regulation of ACSL4 via H2A monoubiquitylation connects lipid metabolism to BAP1-mediated ferroptosis 通过H2A单泛素化对ACSL4的表观遗传调控将脂质代谢与bap1介导的铁死亡联系起来
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-27 DOI: 10.1038/s41418-025-01624-2
Kexin Fan, Shuting Zhou, Yakun Ren, Jingwen Xiong, Hua Wang, Yaxin Fu, Yuhan Chen, Bobo Wang, Kun Fan, Min Gao, Tingli Guo, Xiaofeng Wei, Lianying Jiao, Jiejun Shi, Chenguang Ding, Yilei Zhang
The tumor suppressor BRCA1-associated protein 1 (BAP1) encodes a nuclear deubiquitinase that specifically removes H2A monoubiquitination at Lys119 (H2Aub) and plays a crucial role in the epigenetic regulation of gene expression through cooperating with several transcriptional factors and chromatin-modifying enzymes. Our previous studies have confirmed that BAP1 represses SLC7A11-mediated cystine metabolism and promotes ferroptosis-dependent tumor suppression. However, how BAP1 regulates gene expression at the genome level and whether additional mechanisms are involved in the BAP1 regulation of ferroptosis remain unclear. Here, we integrate multi-omics analyses to explore the effects of BAP1-mediated H2Aub deubiquitination on the regulation of chromatin accessibility and gene transcription. Notably, we identified a novel target gene, ACSL4, which is positively regulated by BAP1 and contributes to BAP1-mediated ferroptosis. Importantly, genetic knockout or pharmacological inhibition of ACSL4 prevents the upregulation of lipid biosynthesis and ferroptotic cell death caused by BAP1. In addition, we demonstrated that BAP1-mediated regulation of gene expression and ferroptosis is dependent on ASXL family members instead of other BAP1-associated factors like FOXK1/2, HCFC1, and OGT. Together, our findings uncover a previously unappreciated epigenetic mechanism underlying the regulation of ACSL4 by H2A monoubiquitination, which connects ACSL4-mediated lipid metabolism to ferroptosis driven by BAP1, providing new insights into the understanding of metabolic regulation of BAP1-related diseases such as cancers.
肿瘤抑制因子BRCA1-associated protein 1 (BAP1)编码核去泛素酶,特异性去除Lys119位点的H2A单泛素化(H2Aub),并通过与多种转录因子和染色质修饰酶合作,在基因表达的表观遗传调控中发挥重要作用。我们之前的研究证实BAP1抑制slc7a11介导的胱氨酸代谢,促进铁中毒依赖性肿瘤抑制。然而,BAP1如何在基因组水平调控基因表达,以及BAP1对铁下垂的调控是否涉及其他机制尚不清楚。在这里,我们结合多组学分析来探讨bap1介导的H2Aub去泛素化对染色质可及性和基因转录调控的影响。值得注意的是,我们发现了一个新的靶基因ACSL4,该基因受BAP1的正调控,并参与BAP1介导的铁下垂。重要的是,基因敲除或药理抑制ACSL4可防止BAP1引起的脂质生物合成上调和铁致细胞死亡。此外,我们证明了bap1介导的基因表达和铁凋亡的调节依赖于ASXL家族成员,而不是其他bap1相关因子,如FOXK1/2、HCFC1和OGT。总之,我们的研究结果揭示了H2A单泛素化调控ACSL4的一个以前未被认识到的表观遗传机制,该机制将ACSL4介导的脂质代谢与BAP1驱动的铁死亡联系起来,为理解BAP1相关疾病(如癌症)的代谢调节提供了新的见解。
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引用次数: 0
Dual lipid modulation overcomes ferroptosis resistance in high-risk neuroblastoma 双重脂质调节克服高危神经母细胞瘤中的铁下垂抵抗
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-26 DOI: 10.1038/s41418-025-01623-3
Ine Koeken, Magali Walravens, Roberto Fernández-Acosta, Ruben Van Hoyweghen, Iuliana Vintea, Yingyi Kong, Bianka Golba, Jonas Dehairs, Ali Talebi, Johannes V. Swinnen, Kaat Durinck, Adriana Mañas, Shinya Toyokuni, Gerben Menschaert, Maria Fedorova, Bruno G. De Geest, Behrouz Hassannia, Tom Vanden Berghe
Ferroptosis—an iron-dependent form of cell death triggered by phospholipid peroxidation—has emerged as a promising therapeutic avenue in cancer treatment. Although neuroblastoma (NB) has been identified as a ferroptosis susceptible cancer, our studies reveal striking heterogeneity in ferroptosis sensitivity across high-risk NB models. Through a targeted metabolic compound screen, we identified stearoyl-CoA desaturase 1 (SCD1)—a key enzyme in monounsaturated fatty acid (MUFA) synthesis—as a robust ferroptosis-sensitizing target. Genetic and pharmacological inhibition of SCD1 restored ferroptosis sensitivity in resistant NB cells. Notably, high SCD1 expression correlates with poor patient prognosis. Co-treatment with arachidonic acid (AA), a polyunsaturated fatty acid (PUFA), further enhanced ferroptotic cell death via increased PUFA/MUFA ratio. Nevertheless, neither baseline lipidomic profiles nor transcriptomes of key ferroptosis regulators reliably predicted ferroptosis sensitivity. To overcome AA’s poor solubility, we engineered AA-loaded lipid nanoparticles (AA-LNPs), which selectively accumulated in high-risk NB tumors and synergized with SCD1 inhibition. This dual-sensitization strategy, termed LipidSens, significantly suppressed tumor growth and induced ferroptosis in cell-derived xenograft mouse models without systemic toxicity. Together, these findings establish MUFA synthesis blockade and PUFA enrichment as a tumor-targeted, ferroptosis-enhancing strategy, and offer a nanomedicine-based therapeutic platform for high-risk NB.
铁中毒是一种由磷脂过氧化引发的铁依赖性细胞死亡形式,已成为癌症治疗中有前景的治疗途径。虽然神经母细胞瘤(NB)已被确定为一种易患铁下垂的癌症,但我们的研究揭示了高危NB模型中铁下垂敏感性的显著异质性。通过靶向代谢化合物筛选,我们确定了硬脂酰辅酶a去饱和酶1 (SCD1) -单不饱和脂肪酸(MUFA)合成的关键酶-作为一个强大的铁中毒致敏靶点。遗传和药理抑制SCD1可恢复耐药NB细胞对铁下垂的敏感性。值得注意的是,SCD1高表达与患者预后不良相关。与花生四烯酸(AA)(一种多不饱和脂肪酸(PUFA))共处理,通过增加PUFA/MUFA比率进一步增强铁致细胞死亡。然而,无论是基线脂质组学谱还是关键铁下垂调节因子的转录组学都不能可靠地预测铁下垂敏感性。为了克服AA的溶解度差,我们设计了负载AA的脂质纳米颗粒(AA- lnps),其在高危NB肿瘤中选择性积累,并与SCD1抑制协同作用。这种双重增敏策略,称为LipidSens,在细胞来源的异种移植小鼠模型中显著抑制肿瘤生长并诱导铁下垂,而无全身毒性。总之,这些发现建立了MUFA合成阻断和PUFA富集作为肿瘤靶向,增强铁凋亡的策略,并为高风险NB提供了基于纳米药物的治疗平台。
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引用次数: 0
Ubiquitin-specific protease 48 drives malignant progression of colorectal cancer by suppressing autophagy through stabilizing sequestosome 1 泛素特异性蛋白酶48通过稳定封存体1抑制自噬,从而驱动结直肠癌的恶性进展
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-26 DOI: 10.1038/s41418-025-01617-1
Juan Li, Aijing Liu, Weili Duan, Yanru Li, Xue Kong, Tiantian Wang, Dun Niu, Shaojun Liu, Peng Zhang, Chuanxin Wang, Peilong Li, Lutao Du
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引用次数: 0
HDAC3 activates endothelial NLRP3 inflammasome and promotes atherosclerosis via inhibiting the acetylation of specificity protein 1 HDAC3激活内皮NLRP3炎性体,通过抑制特异性蛋白1的乙酰化促进动脉粥样硬化
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-26 DOI: 10.1038/s41418-025-01620-6
Lifang Chen, Wei Zhang, Huan Chen, Yirong Zhang, Beibei Guo, Lan Yang, Cheng Yin, Qin Zuo, Lingxuan Ren, Liang Bai, Rong Wang, Sihai Zhao, Enqi Liu, Weirong Wang
{"title":"HDAC3 activates endothelial NLRP3 inflammasome and promotes atherosclerosis via inhibiting the acetylation of specificity protein 1","authors":"Lifang Chen, Wei Zhang, Huan Chen, Yirong Zhang, Beibei Guo, Lan Yang, Cheng Yin, Qin Zuo, Lingxuan Ren, Liang Bai, Rong Wang, Sihai Zhao, Enqi Liu, Weirong Wang","doi":"10.1038/s41418-025-01620-6","DOIUrl":"https://doi.org/10.1038/s41418-025-01620-6","url":null,"abstract":"","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"201 1","pages":""},"PeriodicalIF":12.4,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145609462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting prohibitins activates the ISR through DELE1-HRI by impairing protein import into the mitochondrial matrix 靶向抑制因子通过DELE1-HRI激活ISR,从而阻碍蛋白质进入线粒体基质
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-25 DOI: 10.1038/s41418-025-01618-0
Ismael Sánchez-Vera, Ana M. Cosialls, Nekane Maritorena-Hualde, Max-Hinderk Schuler, Rodolfo Lavilla, Gabriel Pons, Lucas T. Jae, Daniel Iglesias-Serret, Joan Gil
{"title":"Targeting prohibitins activates the ISR through DELE1-HRI by impairing protein import into the mitochondrial matrix","authors":"Ismael Sánchez-Vera, Ana M. Cosialls, Nekane Maritorena-Hualde, Max-Hinderk Schuler, Rodolfo Lavilla, Gabriel Pons, Lucas T. Jae, Daniel Iglesias-Serret, Joan Gil","doi":"10.1038/s41418-025-01618-0","DOIUrl":"https://doi.org/10.1038/s41418-025-01618-0","url":null,"abstract":"","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"120 1","pages":""},"PeriodicalIF":12.4,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
HDAC1 has intrinsic protease activity and regulates transcription through clipping histone H3 N-terminal tail HDAC1具有内在的蛋白酶活性,通过剪切组蛋白H3 n端尾部来调控转录
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-24 DOI: 10.1038/s41418-025-01622-4
Yonghwan Shin, Sungmin Kim, Suhn K. Rhie, Woojin An
{"title":"HDAC1 has intrinsic protease activity and regulates transcription through clipping histone H3 N-terminal tail","authors":"Yonghwan Shin, Sungmin Kim, Suhn K. Rhie, Woojin An","doi":"10.1038/s41418-025-01622-4","DOIUrl":"https://doi.org/10.1038/s41418-025-01622-4","url":null,"abstract":"","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"187 1","pages":""},"PeriodicalIF":12.4,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145583229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UFL1-mediated UFMylation antagonizes IFT88 ubiquitination and degradation to maintain ciliary homeostasis ufl1介导的UFMylation可拮抗IFT88泛素化和降解以维持纤毛的稳态
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-21 DOI: 10.1038/s41418-025-01625-1
Runa Wang, Guizhi Guo, Renshuai Zhang, Lin Li, Yingxin Gong, Long Yin, Shuhua Li, Changfeng Wei, Jun Zhou, Min Liu, Jie Ran
{"title":"UFL1-mediated UFMylation antagonizes IFT88 ubiquitination and degradation to maintain ciliary homeostasis","authors":"Runa Wang, Guizhi Guo, Renshuai Zhang, Lin Li, Yingxin Gong, Long Yin, Shuhua Li, Changfeng Wei, Jun Zhou, Min Liu, Jie Ran","doi":"10.1038/s41418-025-01625-1","DOIUrl":"https://doi.org/10.1038/s41418-025-01625-1","url":null,"abstract":"","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"186 1","pages":""},"PeriodicalIF":12.4,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145559931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MAML1 drives Notch and Hedgehog oncogenic pathways by inhibiting Itch activity in triple-negative breast cancer MAML1通过抑制三阴性乳腺癌的瘙痒活性来驱动Notch和Hedgehog致癌途径
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-21 DOI: 10.1038/s41418-025-01613-5
Sabrina Zema, Francesca Di Fazio, Maria Pelullo, Sara Di Savino, Bruna Cerbelli, Martina Leopizzi, Laura Di Magno, Carmine Nicoletti, Giovanna Peruzzi, Daniel D’Andrea, Maria V. Giuli, Samantha Cialfi, Biagio Palmisano, Alice Turdo, Rocco Palermo, Giulia d’Amati, Gianluca Canettieri, Antongiulio Faggiano, Lucia Di Marcotullio, Matilde Todaro, Isabella Screpanti, Claudio Talora, Saula Checquolo, Diana Bellavia
Triple-negative breast cancer (TNBC) is an aggressive and heterogeneous breast cancer subtype with poor patient outcomes. TNBC heterogeneity arises from multiple dysregulated pathways, including Notch and Hedgehog, which contribute to tumor initiation, progression, and drug resistance. Identifying common molecular regulators of TNBC aggressiveness is crucial for developing effective therapeutic strategies. Here, we demonstrate that the transcriptional coactivator MAML1 drives TNBC aggressiveness by regulating Notch1 and Gli1 stability through the E3 ubiquitin ligase Itch, functioning as an Itch-negative regulator. Mechanistically, MAML1 interacts with Itch via its PPQY motif and promotes K63-linked self-ubiquitylation of Itch, deregulating its expression/activity. Using a Maml1-deficient mouse model, we reveal an inverse correlation between MAML1 and Itch levels, where the loss of MAML1 stabilizes Itch and suppresses Notch1 and Gli1 activity. Conversely, MAML1 upregulation enhances Notch1 and Gli1 expression, driving accelerated TNBC tumor growth and faster multiorgan metastasis in vivo. Accordingly, we show that MAML1 is overexpressed in a cohort of TNBC patients, and the combined overexpression of MAML1/Notch1 and MAML1/Gli1 correlates with poor clinical outcomes by in silico analysis. Our findings establish a dual role for MAML1 as a transcriptional coactivator and a post-translational regulator of Itch, thereby amplifying Notch and Hedgehog oncogenic signaling. This study uncovers MAML1 as a key driver of TNBC progression and a potential therapeutic target for fighting TNBC aggressiveness and heterogeneity.
三阴性乳腺癌(TNBC)是一种侵袭性和异质性的乳腺癌亚型,患者预后较差。TNBC异质性源于多种通路失调,包括Notch和Hedgehog,它们有助于肿瘤的发生、进展和耐药性。确定TNBC侵袭性的共同分子调节因子对于制定有效的治疗策略至关重要。在这里,我们证明了转录共激活因子MAML1通过E3泛素连接酶Itch调节Notch1和Gli1的稳定性来驱动TNBC的侵袭性,该酶作为瘙痒负调节因子发挥作用。在机制上,MAML1通过其PPQY基序与Itch相互作用,促进k63连接的Itch自泛素化,解除其表达/活性的调控。使用MAML1缺陷小鼠模型,我们揭示了MAML1与瘙痒水平之间的负相关,其中MAML1的缺失稳定了瘙痒并抑制了Notch1和Gli1的活性。相反,MAML1上调会增强Notch1和Gli1的表达,从而加速TNBC肿瘤的生长和体内多器官转移。因此,我们通过计算机分析表明,在一组TNBC患者中,MAML1过表达,并且MAML1/Notch1和MAML1/Gli1的联合过表达与不良的临床结果相关。我们的研究结果确定了MAML1作为瘙痒的转录辅助激活因子和翻译后调节因子的双重作用,从而放大Notch和Hedgehog致癌信号。这项研究揭示了MAML1是TNBC进展的关键驱动因素,也是对抗TNBC侵袭性和异质性的潜在治疗靶点。
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引用次数: 0
NEDD4L-mediated Gasdermin D and E ubiquitination regulates cell death and tissue injury nedd4l介导的Gasdermin D和E泛素化调节细胞死亡和组织损伤
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-19 DOI: 10.1038/s41418-025-01598-1
Sonia S. Shah, Jantina A. Manning, Yoon Lim, Diva Sinha, Ambika Mosale Venkatesh Murthy, Raja Ganesan, Nirmal Robinson, Emad S. Alnemri, Seth L. Masters, James E. Vince, Sharad Kumar
The membrane pore-forming gasdermin (GSDM) proteins are essential executors of pyroptosis. The GSDM family members GSDMD and GSDME can also target mitochondrial membranes, driving apoptosis. Here, we identify the ubiquitin ligase NEDD4L as a key regulator of GSDMD and GSDME, two GSDMs involved in cell death. NEDD4L ubiquitinates both these proteins to control their stability and intracellular expression levels. Knockout of mouse Nedd4l (also called Nedd4-2 ) results in lung and kidney damage with perinatal lethality within three weeks of birth. These mice demonstrated elevated GSDMD in alveolar epithelia and increased GSDME in kidney tubular epithelia, suggesting tissue-specific regulation by NEDD4L. Renal tubule-specific Nedd4l knockout mice showed GSDM activation, tubular cell death and reduced kidney function after high sodium diet. NEDD4L-deficient cells showed increased GSDM activation, IL-1β release and were significantly more susceptible to cell death induced by NLRP3 agonists, cytotoxic agents, and bacterial infection. These results demonstrate that NEDD4L regulates GSDMD and GSDME functions by preventing their accumulation and reveals an unexplored link between GSDM stability and cell death.
形成膜孔的气真皮蛋白(GSDM)是热亡的重要执行者。GSDM家族成员GSDMD和GSDME也可以靶向线粒体膜,驱动细胞凋亡。在这里,我们发现泛素连接酶NEDD4L是GSDMD和GSDME的关键调节因子,这两种GSDMs参与细胞死亡。NEDD4L泛素化这两种蛋白来控制它们的稳定性和细胞内表达水平。敲除小鼠Nedd4l(也称为Nedd4-2)会导致肺和肾损伤,并在出生三周内导致围产期死亡。这些小鼠肺泡上皮GSDMD升高,肾小管上皮GSDME升高,提示NEDD4L具有组织特异性调控作用。高钠饮食后,肾小管特异性Nedd4l基因敲除小鼠出现GSDM激活、小管细胞死亡和肾功能下降。nedd4l缺陷细胞显示GSDM激活增加,IL-1β释放增加,并且更容易受到NLRP3激动剂、细胞毒性药物和细菌感染诱导的细胞死亡。这些结果表明,NEDD4L通过阻止GSDMD和GSDME的积累来调节它们的功能,并揭示了GSDM稳定性与细胞死亡之间未被探索的联系。
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引用次数: 0
HERP constrains white adipose expansion and inflammation by STEAP4 stabilization HERP通过STEAP4稳定抑制白色脂肪扩张和炎症
IF 12.4 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-17 DOI: 10.1038/s41418-025-01608-2
Yingchun Chen, Yanyan Wu, Haorui Qin, Zhiqiang Han, Yao Tang, Qiuyan Wang, Fei Xiao
{"title":"HERP constrains white adipose expansion and inflammation by STEAP4 stabilization","authors":"Yingchun Chen, Yanyan Wu, Haorui Qin, Zhiqiang Han, Yao Tang, Qiuyan Wang, Fei Xiao","doi":"10.1038/s41418-025-01608-2","DOIUrl":"https://doi.org/10.1038/s41418-025-01608-2","url":null,"abstract":"","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"11 1","pages":""},"PeriodicalIF":12.4,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145536151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Cell Death and Differentiation
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