化疗依然是包括手术、放疗、以及靶向疗法在内的最重要的抗癌手段之一。尽管高效细胞毒素很多,但癌细胞和健康细胞之间微小的差别限制了这些抗癌化合物因为毒副作用在临床上的广泛应用。鉴于抗肿瘤单克隆抗体对肿瘤细胞表面抗原的特异性...化疗依然是包括手术、放疗、以及靶向疗法在内的最重要的抗癌手段之一。尽管高效细胞毒素很多,但癌细胞和健康细胞之间微小的差别限制了这些抗癌化合物因为毒副作用在临床上的广泛应用。鉴于抗肿瘤单克隆抗体对肿瘤细胞表面抗原的特异性,抗体药物已经成为肿瘤治疗的标准疗法,但单独使用时疗效经常不尽人意。抗体药物偶联物(antibody drug conjugate,ADC)把单克隆抗体和高效细胞毒素完美地结合到一起,充分利用了前者靶向、选择性强,后者活性高,同时又消除了前者疗效偏低和后者副作用偏大等缺陷。其中抗体是ADC的制导系统,能够靶向性地把效应分子输送到肿瘤细胞,有效地提高了抗体本身对癌细胞的杀伤力。ADC包括抗体、接头(linker)和细胞毒素(也经常称为效应分子)三个组成部分。通过靶向特定抗原,ADC有效地渗透到肿瘤组织,并被肿瘤细胞吞噬进入酶溶体,释放效应分子。尽管ADC新药的开发已经获得前所未有的成功,技术上仍然有待进一步优化,其中包括被肿瘤细胞吞噬的效率、细胞毒素的活性以及效应分子的释放等。本文简单介绍ADC领域的研究进展,并试图从抗体、接头和效应分子三个方面,讨论提高ADC分子在循环系统的稳定性等一系列优化ADC分子特征的策略。对当前ADC领域技术上存在的问题,以及中国公司进入这个领域要面临的挑战进行深度分析,并提出一些积极的应对方案。展开更多
传统的癌症化疗常伴随着系统毒性,靶向治疗已成为当今肿瘤研究领域的热点。抗体-药物偶联物(antibody drug conjugates,ADCs)利用单克隆抗体(m ABs)对肿瘤细胞表面过表达抗原的特异性,将"弹头"药物(细胞毒药物)选择性地输送...传统的癌症化疗常伴随着系统毒性,靶向治疗已成为当今肿瘤研究领域的热点。抗体-药物偶联物(antibody drug conjugates,ADCs)利用单克隆抗体(m ABs)对肿瘤细胞表面过表达抗原的特异性,将"弹头"药物(细胞毒药物)选择性地输送到肿瘤细胞中以改善药物治疗窗。ADCs由"弹头"药物、抗体和药物的偶联链三个部分组成,其兼具了抗体的高特异性和细胞毒素的高活性。而随着抗体药物偶联物brentuximab vedotin(SGN-35,Adcetris)和trastuzumab emtansine(T-DM1,Kadcyla)的成功上市,ADCs引起了人们极大的关注。本文综述ADC的分子特征以及组分优化选择,并简单介绍ADC的发展历程。展开更多
胰腺癌是致命的恶性肿瘤之一,现有的手术切除和化疗手段均未能很好地改善患者的预后情况,因此亟需寻找更安全有效的治疗方法以满足临床治疗需求。抗体偶联药物(antibody drug conjugate,ADC)是一类利用化学连接子将单克隆抗体与小分子...胰腺癌是致命的恶性肿瘤之一,现有的手术切除和化疗手段均未能很好地改善患者的预后情况,因此亟需寻找更安全有效的治疗方法以满足临床治疗需求。抗体偶联药物(antibody drug conjugate,ADC)是一类利用化学连接子将单克隆抗体与小分子细胞毒药物偶联而成的靶向抗肿瘤药物,具有选择性高、效力高、毒副作用低等优势。近年来,ADC在多种肿瘤治疗中的成功应用掀起了抗胰腺癌ADC的研究热潮。本文就ADC的结构和作用机制及其在抗胰腺癌领域中的研究现状作一综述,为今后抗胰腺癌ADC的研究提供一定的参考依据。展开更多
抗体偶联药物(antibody drug conjugate,ADC)通常由抗体通过链接体与毒素小分子偶联而成,同时具备抗体的高靶向性和小分子药物的高活性,使之作为一种新兴的靶向治疗手段,在肿瘤治疗领域展现出了优秀的疗效和潜力,成为药物研发领域的新...抗体偶联药物(antibody drug conjugate,ADC)通常由抗体通过链接体与毒素小分子偶联而成,同时具备抗体的高靶向性和小分子药物的高活性,使之作为一种新兴的靶向治疗手段,在肿瘤治疗领域展现出了优秀的疗效和潜力,成为药物研发领域的新热点。目前全球已有14款ADC药物获批上市,处于临床研究阶段的ADC候选药物分子超过140个。为了进一步提高ADC药物的安全性和有效性,近年来涌现出了各种新颖的技术。本文对ADC药物分子的关键元素,包括抗体、链接体、毒素小分子以及偶联技术等方面的最新研究进展进行总结,并讨论其优缺点。期望这些讨论能够帮助增加对ADC药物研究和开发更加系统的理解,为研发出更加高效和安全的ADC药物带来一些思考。展开更多
抗体偶联物(antibody drug conjugates,ADCs)兼具抗体的靶向性和小分子化合物的细胞毒性,目前已经成为抗肿瘤药物研发的热点之一。靶抗原、抗体、毒素、连接子或偶联方式的选择是影响ADCs药物开发成功的要素。本文介绍了ADCs药物在开发...抗体偶联物(antibody drug conjugates,ADCs)兼具抗体的靶向性和小分子化合物的细胞毒性,目前已经成为抗肿瘤药物研发的热点之一。靶抗原、抗体、毒素、连接子或偶联方式的选择是影响ADCs药物开发成功的要素。本文介绍了ADCs药物在开发和结构设计方面需考虑的主要因素,以及在此类产品申报时药学技术审评的要点,希望能为研发单位开发ADCs药物提供参考。展开更多
Antibody-drug conjugates (ADCs) are pioneering biologics that merge antibodies’ specificity with small molecules’ potency. With a handful of FDA-approved ADCs in the market and many under development, ADCs are poise...Antibody-drug conjugates (ADCs) are pioneering biologics that merge antibodies’ specificity with small molecules’ potency. With a handful of FDA-approved ADCs in the market and many under development, ADCs are poised to revolutionize therapeutics. This paper examines the complexities of ADC production, emphasizing the importance of process characterization and the pivotal role of supply chain characteristics, safety requirements, and Contract Manufacturing Organizations (CMOs) with proficiency. The swift transition of antibody-drug conjugate (ADC) programs from early to advanced clinical stages underscores the urgency for quick and efficient commercial launch preparation. This article delves into strategies to hasten commercial readiness, supply chain strategy, the significance of partnering with adept contract development and manufacturing organizations (CDMOs), and the challenges of ADC production.展开更多
Over the past several decades, there has been a significant surge in the development of Antibody-Drug Conjugates (ADCs). Designing an ideal ADC presents a multifaceted challenge, requiring the precise orchestration of...Over the past several decades, there has been a significant surge in the development of Antibody-Drug Conjugates (ADCs). Designing an ideal ADC presents a multifaceted challenge, requiring the precise orchestration of various elements such as antigens, antibodies, linkers, and payloads. While ADCs aim to target tumor cells specifically, several antigens can also be found in regular tissues, potentially compromising the specificity of ADCs in therapeutic applications. The complexity extends to antibody selection, necessitating effective targeting of the desired antigen and ensuring compatibility with linkers for effective payload delivery. Additionally, the linker and payload combination are critical for the ADC’s therapeutic efficiency, balancing stability in circulation and timely payload release upon target binding. ADC doses must be safe for normal tissues while ensuring the released payloads are effective. The success of ADCs is attributed to their unmatched efficacy compared to traditional chemotherapy agents. The current research article aims to provide a technical review of Antibody-Drug Conjugates (ADCs) for cancer therapies. A brief discussion on the basics of ADCs, regulatory approach, overview, and technical complexities for quantification is presented. This review also summarizes recently approved ADCs and introduces the concepts of antibodies, linkers, and payloads. The article also outlines cancer-specific ADCs currently in late-stage clinical trials for cancer treatment.展开更多
Antibody-drug conjugates(ADCs)are gradually revolutionizing clinical cancer therapy.The antibody-drug conjugate linker molecule determines both the efficacy and the adverse effects,and so has a major influence on the ...Antibody-drug conjugates(ADCs)are gradually revolutionizing clinical cancer therapy.The antibody-drug conjugate linker molecule determines both the efficacy and the adverse effects,and so has a major influence on the fate of ADCs.An ideal linker should be stable in the circulatory system and release the cytotoxic payload specifically in the tumor.However,existing linkers often release payloads nonspecifically and inevitably lead to off-target toxicity.This defect is becoming an increasingly important factor that restricts the development of ADCs.The pursuit of ADCs with optimal therapeutic windows has resulted in remarkable progress in the discovery and development of novel linkers.The present review summarizes the advance of the chemical trigger,linker-antibody attachment and linker-payload attachment over the last 5 years,and describes the ADMET properties of ADCs.This work also helps clarify future developmental directions for the linkers.展开更多
文摘化疗依然是包括手术、放疗、以及靶向疗法在内的最重要的抗癌手段之一。尽管高效细胞毒素很多,但癌细胞和健康细胞之间微小的差别限制了这些抗癌化合物因为毒副作用在临床上的广泛应用。鉴于抗肿瘤单克隆抗体对肿瘤细胞表面抗原的特异性,抗体药物已经成为肿瘤治疗的标准疗法,但单独使用时疗效经常不尽人意。抗体药物偶联物(antibody drug conjugate,ADC)把单克隆抗体和高效细胞毒素完美地结合到一起,充分利用了前者靶向、选择性强,后者活性高,同时又消除了前者疗效偏低和后者副作用偏大等缺陷。其中抗体是ADC的制导系统,能够靶向性地把效应分子输送到肿瘤细胞,有效地提高了抗体本身对癌细胞的杀伤力。ADC包括抗体、接头(linker)和细胞毒素(也经常称为效应分子)三个组成部分。通过靶向特定抗原,ADC有效地渗透到肿瘤组织,并被肿瘤细胞吞噬进入酶溶体,释放效应分子。尽管ADC新药的开发已经获得前所未有的成功,技术上仍然有待进一步优化,其中包括被肿瘤细胞吞噬的效率、细胞毒素的活性以及效应分子的释放等。本文简单介绍ADC领域的研究进展,并试图从抗体、接头和效应分子三个方面,讨论提高ADC分子在循环系统的稳定性等一系列优化ADC分子特征的策略。对当前ADC领域技术上存在的问题,以及中国公司进入这个领域要面临的挑战进行深度分析,并提出一些积极的应对方案。
文摘胰腺癌是致命的恶性肿瘤之一,现有的手术切除和化疗手段均未能很好地改善患者的预后情况,因此亟需寻找更安全有效的治疗方法以满足临床治疗需求。抗体偶联药物(antibody drug conjugate,ADC)是一类利用化学连接子将单克隆抗体与小分子细胞毒药物偶联而成的靶向抗肿瘤药物,具有选择性高、效力高、毒副作用低等优势。近年来,ADC在多种肿瘤治疗中的成功应用掀起了抗胰腺癌ADC的研究热潮。本文就ADC的结构和作用机制及其在抗胰腺癌领域中的研究现状作一综述,为今后抗胰腺癌ADC的研究提供一定的参考依据。
文摘抗体偶联药物(antibody drug conjugate,ADC)通常由抗体通过链接体与毒素小分子偶联而成,同时具备抗体的高靶向性和小分子药物的高活性,使之作为一种新兴的靶向治疗手段,在肿瘤治疗领域展现出了优秀的疗效和潜力,成为药物研发领域的新热点。目前全球已有14款ADC药物获批上市,处于临床研究阶段的ADC候选药物分子超过140个。为了进一步提高ADC药物的安全性和有效性,近年来涌现出了各种新颖的技术。本文对ADC药物分子的关键元素,包括抗体、链接体、毒素小分子以及偶联技术等方面的最新研究进展进行总结,并讨论其优缺点。期望这些讨论能够帮助增加对ADC药物研究和开发更加系统的理解,为研发出更加高效和安全的ADC药物带来一些思考。
文摘抗体偶联物(antibody drug conjugates,ADCs)兼具抗体的靶向性和小分子化合物的细胞毒性,目前已经成为抗肿瘤药物研发的热点之一。靶抗原、抗体、毒素、连接子或偶联方式的选择是影响ADCs药物开发成功的要素。本文介绍了ADCs药物在开发和结构设计方面需考虑的主要因素,以及在此类产品申报时药学技术审评的要点,希望能为研发单位开发ADCs药物提供参考。
文摘Antibody-drug conjugates (ADCs) are pioneering biologics that merge antibodies’ specificity with small molecules’ potency. With a handful of FDA-approved ADCs in the market and many under development, ADCs are poised to revolutionize therapeutics. This paper examines the complexities of ADC production, emphasizing the importance of process characterization and the pivotal role of supply chain characteristics, safety requirements, and Contract Manufacturing Organizations (CMOs) with proficiency. The swift transition of antibody-drug conjugate (ADC) programs from early to advanced clinical stages underscores the urgency for quick and efficient commercial launch preparation. This article delves into strategies to hasten commercial readiness, supply chain strategy, the significance of partnering with adept contract development and manufacturing organizations (CDMOs), and the challenges of ADC production.
文摘Over the past several decades, there has been a significant surge in the development of Antibody-Drug Conjugates (ADCs). Designing an ideal ADC presents a multifaceted challenge, requiring the precise orchestration of various elements such as antigens, antibodies, linkers, and payloads. While ADCs aim to target tumor cells specifically, several antigens can also be found in regular tissues, potentially compromising the specificity of ADCs in therapeutic applications. The complexity extends to antibody selection, necessitating effective targeting of the desired antigen and ensuring compatibility with linkers for effective payload delivery. Additionally, the linker and payload combination are critical for the ADC’s therapeutic efficiency, balancing stability in circulation and timely payload release upon target binding. ADC doses must be safe for normal tissues while ensuring the released payloads are effective. The success of ADCs is attributed to their unmatched efficacy compared to traditional chemotherapy agents. The current research article aims to provide a technical review of Antibody-Drug Conjugates (ADCs) for cancer therapies. A brief discussion on the basics of ADCs, regulatory approach, overview, and technical complexities for quantification is presented. This review also summarizes recently approved ADCs and introduces the concepts of antibodies, linkers, and payloads. The article also outlines cancer-specific ADCs currently in late-stage clinical trials for cancer treatment.
基金funded by the Chinese National Natural Science Foundation(Grant Nos.81872736 and 81903451)the China Postdoctoral Science Foundation(Grant No.2019M664015)。
文摘Antibody-drug conjugates(ADCs)are gradually revolutionizing clinical cancer therapy.The antibody-drug conjugate linker molecule determines both the efficacy and the adverse effects,and so has a major influence on the fate of ADCs.An ideal linker should be stable in the circulatory system and release the cytotoxic payload specifically in the tumor.However,existing linkers often release payloads nonspecifically and inevitably lead to off-target toxicity.This defect is becoming an increasingly important factor that restricts the development of ADCs.The pursuit of ADCs with optimal therapeutic windows has resulted in remarkable progress in the discovery and development of novel linkers.The present review summarizes the advance of the chemical trigger,linker-antibody attachment and linker-payload attachment over the last 5 years,and describes the ADMET properties of ADCs.This work also helps clarify future developmental directions for the linkers.
