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期刊论文 6

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2023 1

2017 2

2015 1

2013 1

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可持续农业体系 1

微生物源抗菌肽 1

抗生素替代品 1

掺镁羟基磷灰石 1

趋化/ 趋触因子 1

间充质干细胞 1

骨组织工程 1

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Cationic and amphipathic cell-penetrating peptides (CPPs): Their structures and

Jennica L. Zaro,Wei-Chiang Shen

《化学科学与工程前沿（英文）》 2015年 第9卷 第4期   页码 407-427 doi: 10.1007/s11705-015-1538-y

摘要： Over the past few decades, cell penetrating peptides (CPPs) have become an important class of drug carriers for small molecules, proteins, genes and nanoparticle systems. CPPs represent a very diverse set of short peptide sequences (10?30 amino acids), generally classified as cationic or amphipathic, with various mechanisms in cellular internalization. In this review, a more comprehensive assessment of the chemical structural characteristics, including net cationic charge, hydrophobicity and helicity was assembled for a large set of commonly used CPPs, and compared to results from numerous drug delivery studies. This detailed information can aid in the design and selection of effective CPPs for use as transport carriers in the delivery of different types of drug for therapeutic applications.

关键词： cell penetrating peptides     amphipathic peptides     drug delivery    

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Enzyme-instructed self-assembly of peptides containing phosphoserine to form supramolecular hydrogels

Jie Zhou, Xuewen Du, Jiaqing Wang, Natsuko Yamagata, Bing Xu

《化学科学与工程前沿（英文）》 2017年 第11卷 第4期   页码 509-515 doi: 10.1007/s11705-017-1613-7

摘要： Enzyme-instructed self-assembly (EISA) offers a facile approach to explore the supramolecular assemblies of small molecules in cellular milieu for a variety of biomedical applications. One of the commonly used enzymes is phosphatase, but the study of the substrates of phosphatases mainly focuses on the phosphotyrosine containing peptides. In this work, we examine the EISA of phosphoserine containing small peptides for the first time by designing and synthesizing a series of precursors containing only phosphoserine or both phosphoserine and phosphotyrosine. Conjugating a phosphoserine to the -terminal of a well-established self-assembling peptide backbone, (naphthalene-2-ly)-acetyl-diphenylalanine (NapFF), affords a novel hydrogelation precursor for EISA. The incorporation of phosphotyrosine, another substrate of phosphatase, into the resulting precursor, provides one more enzymatic trigger on a single molecule, and meanwhile increases the precursors’ propensity to aggregate after being fully dephosphorylated. Exchanging the positions of phosphorylated serine and tyrosine in the peptide backbone provides insights on how the specific molecular structures influence self-assembling behaviors of small peptides and the subsequent cellular responses. Moreover, the utilization of D-amino acids largely enhances the biostability of the peptides, thus providing a unique soft material for potential biomedical applications.

关键词： enzyme-instructed self-assembly     phosphoserine     phosphatase     supramolecular hydrogel    

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Significance and strategies in developing delivery systems for bio-macromolecular drugs

Huining HE, Qiuling LIANG, Meong Cheol SHIN, Kyuri LEE, Junbo GONG, Junxiao YE, Quan LIU, Jingkang WANG, Victor YANG

《化学科学与工程前沿（英文）》 2013年 第7卷 第4期   页码 496-507 doi: 10.1007/s11705-013-1362-1

摘要： Successful development of a new drug is prohibitively expensive, and is estimated to cost approximately $100–500 million US dollars for a single clinical drug. Yet, a newly developed drug can only enjoy its patent protection for 18 years, meaning that after this protected time period, any company can manufacture this product and thus the profit generated by this drug entity would reduce dramatically. Most critically, once a drug is being synthesized, its physical, chemical, and biological attributes such as bioavailability and in vivo pharmacokinetics are all completely fixed and cannot be changed. In principal and practice, only the application of an appropriately designed drug delivery system (DDS) is able to overcome such limitations, and yet the cost of developing a novel drug delivery system is less than 10% of that of developing a new drug. Because of these reasons, the new trend in pharmaceutical development has already begun to shift from the single direction of developing new drugs in the past to a combined mode of developing both new drugs and innovative drug delivery systems in this century. Hence, for developing countries with relatively limited financial resources, a smart strategic move would be to focus on the development of new DDS, which has a significantly higher benefit/risk ratio when comparing to the development of a new drug. Because of the unmatched reaction efficiency and a repetitive action mode, the therapeutic activity of a single bio-macromolecular drug (e.g., protein toxins, gene products, etc.) is equivalent to about 10 –10 of that from a conventional small molecule anti-cancer agent (e.g., doxorubicin). Hence, bio-macromolecular drugs have been recognized around the world as the future “drug-of-choice”. Yet, among the>10000 drugs that are currently available, only ~150 of them belong to these bio-macromolecular drugs (an exceedingly low 1.2%), reflecting the difficulties of utilizing these agents in clinical practice. In general, the bottleneck limitations of these bio-macromolecular drugs are two-fold: (1) the absence of a preferential action of the drug on tumor cells as opposed to normal tissues, and (2) the lack of ability to cross the tumor cell membrane. In this review, we provide strategies of how to solve these problems simultaneously and collectively via the development of innovative drug delivery systems. Since worldwide progress on bio-macromolecular therapeutics still remains in the infant stage and thus open for an equal-ground competition, we wish that this review would echo the desire to industrialized countries such as China to set up its strategic plan on developing delivery systems for these bio-macromolecular drugs, thereby realizing their clinical potential.

关键词： delivery systems     bio-macromolecular drugs     cell penetrating peptides    

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微生物源性抗菌肽在可持续农业中的生物前景 Review

林书华, 陈选, 陈惠敏, 蔡茜茜, 陈旭, 汪少芸

《工程（英文）》 2023年 第27卷 第8期   页码 222-233 doi: 10.1016/j.eng.2022.08.011

摘要：

为满足可持续农业发展体系构建的需求，本文开发了一种可用于替代传统抗生素的策略。该策略指出了一种可用作传统抗生素的替代品——抗菌肽（AMPs），其具有广谱抗菌活性和多靶点抗菌机制的特点。长期以来，研究人员一直致力从微生物中开发抗菌肽，该类微生物代谢活跃可适应各种极端环境。因此，在前人研究基础上，本文基于微生物源抗菌肽的的生物活性、抗菌机制、制备方法和其在农业生产应用中面临的挑战，开发了一种策略，以期为可持续农业发展中抗菌肽的应用提供理论指导。

关键词： 抗生素替代品     微生物源抗菌肽     可持续农业体系    

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Rational Design of and Mechanism Insight into an Efficient Antifreeze Peptide for Cryopreservation

Haishan Qi,Yihang Gao,Lin Zhang,Zhongxin Cui,Xiaojie Sui,Jianfan Ma,Jing Yang,Zhiquan Shu,Lei Zhang,

《工程（英文）》 doi: 10.1016/j.eng.2023.01.015

摘要： The development of effective antifreeze peptides to control ice growth has attracted a significant amount of attention yet still remains a great challenge. Here, we propose a novel design method based on an in-depth investigation of repetitive motifs in various ice-binding proteins (IBPs) with an evolution analysis. In this way, several peptides with notable antifreeze activity were developed. In particular, a designed antifreeze peptide named AVD exhibits ideal ice recrystallization inhibition (IRI), solubility, and biocompatibility, making it suitable for use as a cryoprotective agent (CPA). A mutation analysis and molecular dynamics (MD) simulations indicated that the Thr6 and Asn8 residues of the AVD peptide are fundamental to its ice-binding capacity, while the Ser18 residue can synergistically enhance their interaction with ice, revealing the antifreeze mechanism of AVD. Furthermore, to demonstrate the cryoprotection potential of AVD, the peptide was successfully employed for the cryopreservation of various cells, which demonstrated significant post-freezing cell recovery. This work opens up a new avenue for designing antifreeze materials and provides peptide-based functional modules for synthetic biology.

关键词： Antifreeze peptides     Evolution analysis     Ice recrystallization inhibition     Molecular dynamics simulation     Cryopreservation     Synthetic biology    

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趋化信号接枝的掺镁羟基磷灰石促进间充质干细胞归巢

Alessandro Pistone, Daniela Iannazzo, Claudia Espro, Signorino Galvagno, Anna Tampieri, Monica Montesi, Silvia Panseri, Monica Sandri

《工程（英文）》 2017年 第3卷 第1期   页码 55-59 doi: 10.1016/J.ENG.2017.01.007

摘要：

干细胞归巢，即间充质干细胞定向趋化募集至损伤处，对体内骨再生起重要作用。本文以人纤连蛋白片段III1-C(FF III1-C) 及纤连蛋白类似物的肽序列Gly-Arg-Gly-Asp-Ser-Pro-Lys 作为趋化因子，分别共价结合至掺镁羟基磷灰石中，用于研究模拟肽序列接枝的掺镁羟基磷灰石对间充质细胞归巢的调控作用。用于检测间充质干细胞活力的MTT 法初步研究发现释放趋化信号的掺镁羟基磷灰石可有效促进干细胞迁移。

关键词： 掺镁羟基磷灰石     间充质干细胞     趋化/ 趋触因子     骨组织工程    

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标题 作者 时间 类型 操作

Cationic and amphipathic cell-penetrating peptides (CPPs): Their structures and

Jennica L. Zaro,Wei-Chiang Shen

期刊论文

Enzyme-instructed self-assembly of peptides containing phosphoserine to form supramolecular hydrogels

Jie Zhou, Xuewen Du, Jiaqing Wang, Natsuko Yamagata, Bing Xu

期刊论文

Significance and strategies in developing delivery systems for bio-macromolecular drugs

Huining HE, Qiuling LIANG, Meong Cheol SHIN, Kyuri LEE, Junbo GONG, Junxiao YE, Quan LIU, Jingkang WANG, Victor YANG

期刊论文

微生物源性抗菌肽在可持续农业中的生物前景

林书华, 陈选, 陈惠敏, 蔡茜茜, 陈旭, 汪少芸

期刊论文

Rational Design of and Mechanism Insight into an Efficient Antifreeze Peptide for Cryopreservation

Haishan Qi,Yihang Gao,Lin Zhang,Zhongxin Cui,Xiaojie Sui,Jianfan Ma,Jing Yang,Zhiquan Shu,Lei Zhang,

期刊论文

趋化信号接枝的掺镁羟基磷灰石促进间充质干细胞归巢

Alessandro Pistone, Daniela Iannazzo, Claudia Espro, Signorino Galvagno, Anna Tampieri, Monica Montesi, Silvia Panseri, Monica Sandri

期刊论文