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Abstract 924: PROTECT, a novel antibody platform for integrating tumor-specific immune modulation and enhancing the therapeutic window of targeted multispecific biologics 摘要:PROTECT是一个整合肿瘤特异性免疫调节和增强靶向多特异性生物制剂治疗窗口的新型抗体平台
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-924
S. Dixit, Florian Heinkel, Anna von Rossum, Harsh Pratap, Sifa Arrafi, Javairia Rahim, P. Bhojane, Liz Stangle, L. Stenberg, G. Volkers, Eric Escobar-Cabrera, T. Spreter
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引用次数: 1
Abstract 1014: Repurposing the anti-rheumatic gold compound auranofin for high-grade serous ovarian cancer therapy 摘要/ Abstract摘要:抗风湿金化合物金嘌呤用于治疗高级别浆液性卵巢癌
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1014
Farah H. Abdalbari, A. Goyeneche, Elvis Martinez-Jaramillo, S. Sabri, C. Telleria
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引用次数: 0
Abstract 1411: LAMC2 promotes progression and gemcitabine resistance through modulation of EMT and ATP-binding transporters in pancreatic ductal adenocarcinoma 摘要:LAMC2通过调节胰腺导管腺癌的EMT和atp结合转运蛋白促进进展和吉西他滨耐药
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1411
Yasuyuki Okada, S. Nishiwada, N. Takahashi, T. Takayama, A. Goel
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引用次数: 0
Abstract 1185: PRMT5 inhibition epigenetically regulates DNA damage response pathways in cancer cells and sensitizes to chemotherapy and PARP inhibition 摘要:PRMT5抑制在表观遗传学上调控癌细胞的DNA损伤反应途径,并对化疗和PARP抑制增敏
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1185
Koichi Ito, Jack Carter, V. Thodima, Youyou Zhang, Monisha Sivakumar, Mu Xu, N. Bhagwat, J. Rager, Jacob Spruance, Lin Zhang, Bruce R Ruggeri, P. Scherle, K. Vaddi
{"title":"Abstract 1185: PRMT5 inhibition epigenetically regulates DNA damage response pathways in cancer cells and sensitizes to chemotherapy and PARP inhibition","authors":"Koichi Ito, Jack Carter, V. Thodima, Youyou Zhang, Monisha Sivakumar, Mu Xu, N. Bhagwat, J. Rager, Jacob Spruance, Lin Zhang, Bruce R Ruggeri, P. Scherle, K. Vaddi","doi":"10.1158/1538-7445.AM2021-1185","DOIUrl":"https://doi.org/10.1158/1538-7445.AM2021-1185","url":null,"abstract":"","PeriodicalId":12258,"journal":{"name":"Experimental and Molecular Therapeutics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91441466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Abstract 1021: Investigating the mechanism of PARP7 inhibition in type I interferon signaling by arrayed CRISPR screening 摘要/ Abstract摘要:通过阵列CRISPR筛选研究PARP7抑制I型干扰素信号传导的机制
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1021
B. Gui, R. Abo, Patrick Flynn, A. Lu, Jan-Rung Mo, J. Gozgit, M. Vasbinder, Zacharenia A. Varsamis, Andrew G. Santospago, V. Richon, K. Kuntz, H. Keilhack, T. Mitchison, M. Niepel
{"title":"Abstract 1021: Investigating the mechanism of PARP7 inhibition in type I interferon signaling by arrayed CRISPR screening","authors":"B. Gui, R. Abo, Patrick Flynn, A. Lu, Jan-Rung Mo, J. Gozgit, M. Vasbinder, Zacharenia A. Varsamis, Andrew G. Santospago, V. Richon, K. Kuntz, H. Keilhack, T. Mitchison, M. Niepel","doi":"10.1158/1538-7445.AM2021-1021","DOIUrl":"https://doi.org/10.1158/1538-7445.AM2021-1021","url":null,"abstract":"","PeriodicalId":12258,"journal":{"name":"Experimental and Molecular Therapeutics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80710139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Abstract 1213: PDE10A as a novel target to suppress Wnt/β-catenin signaling and other oncogenic pathways in ovarian cancer 摘要1213:PDE10A作为抑制卵巢癌Wnt/β-catenin信号通路和其他致癌途径的新靶点
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1213
Rebecca Barber, E. Gavin, A. Musiyenko, Wito Richter, Kevin J. Lee, A. Wilhite, J. Andrews, S. McClellan, I. Aragon, Antonio Ward, Xi Chen, A. Keeton, K. Berry, G. Piazza, J. Scalici, Luciana Madeira da Silva
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引用次数: 0
Abstract 39: APOBEC3A drives acquired resistance to targeted therapies in non small cell lung cancer 摘要39:APOBEC3A驱动非小细胞肺癌靶向治疗获得性耐药
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-39
H. Isozaki, Ammal Abbasi, Naveed Nikpour, Adam Langenbucher, Wenjia Su, Marcello Stanzione, L. Sequist, R. Buisson, M. Lawrence, A. Hata
{"title":"Abstract 39: APOBEC3A drives acquired resistance to targeted therapies in non small cell lung cancer","authors":"H. Isozaki, Ammal Abbasi, Naveed Nikpour, Adam Langenbucher, Wenjia Su, Marcello Stanzione, L. Sequist, R. Buisson, M. Lawrence, A. Hata","doi":"10.1158/1538-7445.AM2021-39","DOIUrl":"https://doi.org/10.1158/1538-7445.AM2021-39","url":null,"abstract":"","PeriodicalId":12258,"journal":{"name":"Experimental and Molecular Therapeutics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83540675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Abstract 1273: Discovery of a potent, selective, and orally bioavailable SOS1 inhibitor, RMC-023, anin vivotool compound that blocks RAS activation via disruption of the RAS-SOS1 interaction 1273:发现一种有效的、选择性的、口服生物可利用的SOS1抑制剂rmmc -023,这是一种通过破坏RAS-SOS1相互作用来阻断RAS激活的体内化合物
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1273
A. Buckl, E. Quintana, Grace J. Lee, N. Shifrin, Mengqi Zhong, L. Garrenton, David C. Montgomery, Carlos Stahlhut, F. Zhao, D. Whalen, Severin Thompson, Arlyn Tambo-ong, Micah J. Gliedt, J. Knox, Cregg James Joseph, N. Aay, Jong Choi, Bao Nguyen, Atti Tripathi, Ruiping Zhao, Mae Saldajeno-Concar, Abby Marquez, Daphne Hsieh, Laura L. McDowell, E. Koltun, Alun Bermingham, D. Wildes, Mallika Singh, Zhengping Wang, R. Hansen, Jan Smith, A. Gill
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引用次数: 0
Abstract 966: Lenvatinib induces apoptosis and inhibits metastasis through downregulate Wnt/GSK3β/NF-κB in hepatocellular carcinoma 966: Lenvatinib通过下调肝癌细胞Wnt/GSK3β/NF-κB诱导细胞凋亡和抑制转移
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-966
Tsu-Lan Chao, Zhao-Lin Tan, I-Tsang Chiang, Y. Chiang, Fei-Ting Hsu
Hepatocellular carcinoma (HCC) is a prevalent cancer type and also the leading cause of cancer death among Taiwanese. The current treatments for liver cancer include eradication, chemical, targeted and radiotherapy… etc. Unfortunately, radiation therapy is quite harmful to patients and results in hepatic injury. Other treatment methods can only prolong patient9s life for few months, and has considerable side effects; therefore, it is extremely important to find other more effective drugs for HCC. HCC patients with higher expression level of ASPM (abnormal spindle-like microcephaly associated) have significantly lower survival rate than those of patients with lower expression level. ASPM is the co-activator of Wnt, which can activate the Wnt/β-catenin signaling pathway to increase the performance of GSK3β (Glycogen synthase kinase 3 beta) and regulate angiogenesis. In addition, studies have also found that GSK3β can also activate the transcription factor NF-κB, causing a large number of downstream proteins upregulation and thus triggered tumor growth and metastasis. Recent studies suggested that sorafenib has ability to inhibit the activation of transcription factor NF-κB and the expression of its downstream related proteins. Lenvatinib is also a multi-kinase inhibitor and had been approved by FDA for HCC treatment, which is more effective and with fewer skin side effects than sorafenib. However, whether the anti-tumor efficacy of lenvatinib in HCC was associated with the regulation of Wnt/GSK3β/NF-κB in HCC is remaining unclear. We aim to investigate whether the effect of lenvatinib in HCC, such as apoptosis induction and tumor metastasis inhibition, were associated with the inactivation of Wnt/GSK3B/NF-κB. Our studies demonstrated that lenvatinib can induce cytotoxicity of human HCC Hep3B and Huh7 cells. Lenvatinib may induce apoptosis effect via activated extrinsic- and intrinsic-apoptosis related molecules, including cleaved caspase-3, -8 and -9. Lenvatinib also significantly inhibited metastasis through the reduction of NF-κB-mediated metastasis associated proteins expression (MMP-2, MMP-9 and VEGF) and inhibition of invasion/migration ability in HCC cells. In addition, the inhibition of ASPM, Wnt and GSK3β were found after lenvatinib treatment in both in vitro and in vivo models. NF-κB activation was also effectively suppressed by lenvatinib in cells and animal model. Tumor growth inhibition was also found in lenvatinib treatment group. In conclusion, lenvatinib induces apoptosis and suppresses metastasis was associated with Wnt/GSK3β/NF-κB inactivation. Citation Format: Tsu-Lan Chao, Zhao-Lin Tan, I-Tsang Chiang, Yuan Chiang, Fei-Ting Hsu. Lenvatinib induces apoptosis and inhibits metastasis through downregulate Wnt/GSK3β/NF-κB in hepatocellular carcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstrac
摘要肝细胞癌(HCC)是一种常见的癌症类型,也是台湾癌症死亡的主要原因。目前肝癌的治疗方法包括根治、化学治疗、靶向治疗和放射治疗等。不幸的是,放射治疗对患者非常有害,并导致肝损伤。其他治疗方法只能延长患者几个月的生命,并且有相当大的副作用;因此,寻找其他更有效的治疗HCC的药物是极其重要的。ASPM(异常纺锤样小头畸形相关)表达水平较高的HCC患者生存率明显低于表达水平较低的患者。ASPM是Wnt的共激活因子,可激活Wnt/β-catenin信号通路,提高GSK3β(糖原合成酶激酶3β)功能,调节血管生成。此外,研究还发现GSK3β还能激活转录因子NF-κB,引起大量下游蛋白上调,从而引发肿瘤生长和转移。近期研究表明索拉非尼能够抑制转录因子NF-κB的激活及其下游相关蛋白的表达。Lenvatinib也是一种多激酶抑制剂,已被FDA批准用于HCC治疗,与索拉非尼相比,Lenvatinib更有效,皮肤副作用更少。然而,lenvatinib在HCC中的抗肿瘤作用是否与肝癌中Wnt/GSK3β/NF-κB的调节有关尚不清楚。我们的目的是探讨lenvatinib在HCC中的作用,如诱导细胞凋亡和抑制肿瘤转移,是否与Wnt/GSK3B/NF-κB失活有关。我们的研究表明lenvatinib可以诱导人肝癌Hep3B和Huh7细胞的细胞毒性。Lenvatinib可能通过激活外源性和内源性凋亡相关分子,包括裂解caspase-3、-8和-9,诱导细胞凋亡作用。Lenvatinib还通过降低NF-κ b介导的转移相关蛋白(MMP-2、MMP-9和VEGF)的表达和抑制肝癌细胞的侵袭/迁移能力来显著抑制转移。此外,lenvatinib对体外和体内模型的ASPM、Wnt和GSK3β均有抑制作用。lenvatinib在细胞和动物模型中也能有效抑制NF-κB的活化。lenvatinib治疗组肿瘤生长也有抑制作用。由此可见,lenvatinib诱导细胞凋亡和抑制转移与Wnt/GSK3β/NF-κB失活有关。引用格式:赵祖兰,谭兆林,蒋一曾,蒋元,徐飞婷。Lenvatinib通过下调肝癌细胞Wnt/GSK3β/NF-κB诱导细胞凋亡和抑制转移[摘要]。见:美国癌症研究协会2021年年会论文集;2021年4月10日至15日和5月17日至21日。费城(PA): AACR;癌症杂志,2021;81(13 -增刊):摘要第966期。
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引用次数: 0
Abstract 1307: Assessment of long IVT mRNA fragments with the Fragment Analyzer system 1307:片段分析仪系统对长IVT mRNA片段的评估
Pub Date : 2021-07-01 DOI: 10.1158/1538-7445.AM2021-1307
Kyle D. Luttgeharm, Solange Borg, C. Pocernich
Quality control analysis of long in vitro transcribed (IVT) RNAs is challenging due to the lack of commercially available kits for sizing RNA over 6,000 nt, thus, to analyze long IVT RNAs, an extended separation method was developed for the Agilent 5200 Fragment Analyzer using a commercially available RNA ladder. IVT mRNA was produced using the RiboMAX Large Scale RNA Production System (Promega). RNA transcripts 9,000 and 10,000 nt in length were diluted in nuclease-free water and separated on the Agilent 5200 Fragment Analyzer system with the Agilent RNA kit (15 nt) (p/n DNF-471) with the following modifications. The Lonza RNA marker (Lonza) (long RNA Ladder) replaced the Agilent RNA Ladder and was diluted in nuclease-free water to 96 ng/μL. The long RNA Ladder was added to the Agilent RNA Diluent Marker (15 nt) (p/n DNF-369-0004) according to the RNA kit protocol. The standard separation method (8 kV for 45 minutes) for the RNA kit (15 nt) was manually altered to the extended RNA method (4 kV for 90 minutes) in the Agilent 5200 Fragment Analyzer software for fragments greater than 6,000 nt. The extended RNA method with the long RNA Ladder was employed for all subsequent runs. The long RNA Ladder separated with the extended method displayed enhanced resolution compared to separation with the standard method as seen by the increased spacing between the ladder peaks and the increased sharpness of the 9,000 nt peak. The extended RNA method reported a lower average sizing percent error (-0.7 %) over the entire concentration range of the kit compared to the standard RNA method (8.4 %) for the 9,000 nt sample. The 10,000 nt IVT mRNA average percent sizing error was similar between the two separation methods throughout the dilution series. Using the extended method, the 9,000 and 10,000 nt IVT mRNA samples were successfully analyzed with good sizing precision and accuracy, demonstrating that a commercially available RNA ladder can be used with the Fragment Analyzer system to provide accurate sizing of large IVT mRNA samples. The extended RNA method is recommended when extremely accurate sizing or high resolution is needed for determining the presence of degradation or sizing differences from incomplete transcription in IVT mRNA samples longer than 6,000 nt. For Research Use Only. Not for use in diagnostic procedures. Citation Format: Kyle D. Luttgeharm, Solange Borg, Chava Pocernich. Assessment of long IVT mRNA fragments with the Fragment Analyzer system [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1307.
长段体外转录(IVT) RNA的质量控制分析是具有挑战性的,因为缺乏商用试剂盒来测定超过6000 nt的RNA大小,因此,为了分析长段体外转录RNA, Agilent 5200片段分析仪开发了一种扩展的分离方法,使用商用RNA阶梯。使用RiboMAX大规模RNA生产系统(Promega)生产IVT mRNA。长度为9,000和10,000 nt的RNA转录本在无核酸酶的水中稀释,并使用Agilent RNA试剂盒(15 nt) (p/n DNF-471)在Agilent 5200片段分析仪系统上进行以下修改。Lonza RNA标记物(Lonza) (long RNA Ladder)代替Agilent RNA Ladder,用无核酸酶水稀释至96 ng/μL。根据RNA试剂盒方案,将长RNA梯加入Agilent RNA稀剂标记物(15 nt) (p/n DNF-369-0004)。对于大于6000 nt的片段,在Agilent 5200 Fragment Analyzer软件中,将RNA试剂盒(15 nt)的标准分离方法(8 kV, 45分钟)手动更改为扩展RNA方法(4 kV, 90分钟)。随后的所有运行均采用带有长RNA阶梯的扩展RNA方法。与标准方法相比,扩展方法分离的长RNA阶梯显示出更高的分辨率,这可以从阶梯峰之间的间距增加和9,000 nt峰的清晰度增加中看出。与标准RNA方法(8.4%)相比,扩展RNA方法在试剂盒的整个浓度范围内报告了较低的平均施胶百分比误差(- 0.7%),用于9000 nt样品。在整个稀释系列中,两种分离方法的10,000 nt IVT mRNA平均百分比大小误差相似。使用扩展方法,成功分析了9,000和10,000 nt IVT mRNA样品,具有良好的尺寸精度和准确性,表明商用RNA阶梯可以与片段分析仪系统一起使用,以提供大型IVT mRNA样品的准确尺寸。当需要非常准确的大小或高分辨率来确定IVT mRNA样品中长度超过6,000 nt的不完全转录的降解或大小差异的存在时,推荐使用扩展RNA方法。不适用于诊断程序。引文格式:Kyle D. Luttgeharm, Solange Borg, Chava Pocernich。片段分析仪系统对长IVT mRNA片段的评估[摘要]。见:美国癌症研究协会2021年年会论文集;2021年4月10日至15日和5月17日至21日。费城(PA): AACR;癌症杂志,2021;81(13 -增刊):1307。
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Experimental and Molecular Therapeutics
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