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Discovery and Development of Small-Molecule Antitumor Drugs

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Medicinal Chemistry".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 7522

Special Issue Editors


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Guest Editor
Laboratory of Tumor Targeted and Immune Therapy, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu 610041, Sichuan, China
Interests: targeted therapy; small-molecule medicine; immunotherapy; drug resistance; precision medicine; multiomics

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Guest Editor
School of Life Science, Beijing Institute of Technology, Beijing 100081, China
Interests: discovery of small molecules; anti-tumor drugs targeting kinase, UPS and associated mechanisms

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Guest Editor
Lab of Natural Product Drugs, Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
Interests: discovery of anti-tumor natural products and their associated mechanisms

Special Issue Information

Dear Colleagues,

Cancer is the second-leading cause of death worldwide, and the global healthcare burden caused by cancer is immense. According to the WHO, over 19 million new cancer cases, and approximately 10 million cancer-related deaths occurred in 2020. The number of cancer cases is expected to increase by almost 50% by 2040. Drug treatment for cancers can be roughly classified into three categories: small molecules, macromolecules (such as monoclonal antibodies, polypeptides, antibody–drug conjugates, and nucleic acids), and cell-based immunotherapies (such as CAR-T cell therapy, CAR-NK cell therapy, and TCR-T cell therapy). Despite recent challenges by macromolecule drugs represented by monoclonal antibodies and cell-based immunotherapy, small-molecule targeted drugs still are still extensively developed due to their advantages, such as the pharmaco-kinetic (PK) properties, low cost, patient compliance, and drug storage and transportation. The object of this Special Issue is to provide an overview on recent trends in the discovery and development of small-molecule anti-tumor drugs.

We welcome high-quality reviews or research articles for this Special Issue. The topics of this Special Issue include, but are not limited to:

  1. Natural products;
  2. Kinase inhibitors;
  3. Small molecules targeting UPS (Ubiquitin-26S proteasome system);
  4. Epigenetic inhibitors;
  5. Small-molecule immuno-oncology therapeutic agents;
  6. Identification and validation of small-molecule anti-tumor drug targets.

Prof. Dr. Hubing Shi
Prof. Dr. Feng Wang
Dr. Haoyu Ye
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • small-molecule drugs
  • anti-tumor
  • natural products
  • kinase inhibitors
  • proteasome inhibitors
  • epigenetic inhibitors
  • immuno-oncology therapy
  • targets identification

Published Papers (2 papers)

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Research

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13 pages, 4350 KiB  
Article
Ajuforrestin A, an Abietane Diterpenoid from Ajuga ovalifolia var. calanthe, Induces A549 Cell Apoptosis by Targeting SHP2
by Hongling Yan, Miao Jiang, Fujin Yang, Xueyong Tang, Mao Lin, Chunyan Zhou, Yuzhu Tan and Deming Liu
Molecules 2022, 27(17), 5469; https://doi.org/10.3390/molecules27175469 - 25 Aug 2022
Cited by 2 | Viewed by 1855
Abstract
The Src-homology 2 domain-containing phosphatase 2 (SHP2), which is encoded by PTPN11, participates in many cellular signaling pathways and is closely related to various tumorigenesis. Inhibition of the abnormal activity of SHP2 by small molecules is an important part of cancer treatment. Here, [...] Read more.
The Src-homology 2 domain-containing phosphatase 2 (SHP2), which is encoded by PTPN11, participates in many cellular signaling pathways and is closely related to various tumorigenesis. Inhibition of the abnormal activity of SHP2 by small molecules is an important part of cancer treatment. Here, three abietane diterpenoids, named compounds 13, were isolated from Ajuga ovalifolia var. calantha. Spectroscopic analysis was used to identify the exact structure of the compounds. The enzymatic kinetic experiment and the cellular thermal shift assay showed compound 2 selectively inhibited SHP2 activity in vitro. Molecular docking indicated compound 2 targeted the SHP2 catalytic domain. The predicted pharmacokinetic properties by SwissADME revealed that compound 2 passed the majority of the parameters of common drug discovery rules. Compound 2 restrained A549 proliferation (IC50 = 8.68 ± 0.96 μM), invasion and caused A549 cell apoptosis by inhibiting the SHP2–ERK/AKT signaling pathway. Finally, compound 2 (Ajuforrestin A) is a potent and efficacious SHP2 inhibitor and may be a promising compound for human lung epithelial cancer treatment. Full article
(This article belongs to the Special Issue Discovery and Development of Small-Molecule Antitumor Drugs)
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Review

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26 pages, 7706 KiB  
Review
Small-Molecule PROTACs for Cancer Immunotherapy
by Zefan Liu, Yajun Zhang, Yucheng Xiang and Xin Kang
Molecules 2022, 27(17), 5439; https://doi.org/10.3390/molecules27175439 - 25 Aug 2022
Cited by 10 | Viewed by 5194
Abstract
Unsatisfactory physicochemical properties of macromolecular drugs seriously hinder their application in tumor immunotherapy. However, these problems can be effectively solved by small-molecule compounds. In the promising field of small-molecule drug development, proteolysis targeting chimera (PROTAC) offers a novel mode of action in the [...] Read more.
Unsatisfactory physicochemical properties of macromolecular drugs seriously hinder their application in tumor immunotherapy. However, these problems can be effectively solved by small-molecule compounds. In the promising field of small-molecule drug development, proteolysis targeting chimera (PROTAC) offers a novel mode of action in the interactions between small molecules and therapeutic targets (mainly proteins). This revolutionary technology has shown considerable impact on several proteins related to tumor survival but is rarely exploited in proteins associated with immuno-oncology up until now. This review attempts to comprehensively summarize the well-studied and less-developed immunological targets available for PROTAC technology, as well as some targets to be explored, aiming to provide more options and opportunities for the development of small-molecule-based tumor immunotherapy. In addition, some novel directions that can magnify and broaden the protein degradation efficiency are mentioned to improve PROTAC design in the future. Full article
(This article belongs to the Special Issue Discovery and Development of Small-Molecule Antitumor Drugs)
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