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Novel Strategy for Molecular Targeted Therapy in Cancer

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

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 3841

Special Issue Editor


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Guest Editor
Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
Interests: precision oncology; targeted therapy; cancer genomics; cancer metabolism; drug design

Special Issue Information

Dear Colleagues,

The completion of the Human Genome Project in 2003 marked the initial transition of biomedical sciences into the post-genomic era. With the growing body of data on genetic alterations on individual tumors, the aspirations of personalized medicine are more rapidly emerging as a tangible reality. True to this framework, precision oncology aims to pinpoint unique genetic vulnerabilities found solely in a patient’s tumor. Off-target side-effects are thus minimized, as these targeted vulnerabilities are absent from other normal tissues.

One of the greatest challenges to realizing the precision oncology approach is the traditional view of what constitutes an “actionable” genetic vulnerability. For instance, the recent success of targeting tumors with NTRK fusions with specific kinase inhibitors has largely led the field to focus on mutant or fusion-activated oncogenes. However, strategies other than this conventionally adopted approach stand to be just as—if not even more—therapeutically effective. Collateral lethality, an approach based on genomic passenger deletions, is just one example of a contrasting therapeutic strategy under the larger umbrella of precision oncology. The multitude of genetic tumor data welcomes the discovery of alternate, innovative approaches that need not be overshadowed by the general trends in the field. 

Dr. Florian L Muller
Guest Editor

Manuscript Submission Information

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Keywords

  • Targeted therapy
  • Cancer genomics
  • Cancer metabolism
  • Drug design

Published Papers (1 paper)

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Research

17 pages, 2998 KiB  
Article
Identification of Potential Chemical Substrates as Fuel for Hypoxic Tumors That May Be Linked to Invadopodium Formation in Hypoxia-Induced MDA-MB-231 Breast-Cancer Cell Line
by Hamad Ali Hamad, Hamid Hammad Enezei, Anmar Alrawas, Noraina Muhamad Zakuan, Nurul Akmaryanti Abdullah, Yoke Kqueen Cheah and Nur Fariesha Md Hashim
Molecules 2020, 25(17), 3876; https://doi.org/10.3390/molecules25173876 - 26 Aug 2020
Cited by 4 | Viewed by 3498
Abstract
Hypoxia plays a significant role in solid tumors by the increased expression of hypoxia-inducible factor-1α (HIF-1α), which is known to promote cancer invasion and metastasis. Cancer-cell invasion dynamically begins with the degradation of the extracellular matrix (ECM) via invadopodia formation. The chemical substrates [...] Read more.
Hypoxia plays a significant role in solid tumors by the increased expression of hypoxia-inducible factor-1α (HIF-1α), which is known to promote cancer invasion and metastasis. Cancer-cell invasion dynamically begins with the degradation of the extracellular matrix (ECM) via invadopodia formation. The chemical substrates that are utilized by hypoxic cells as fuel to drive invadopodia formation are still not fully understood. Therefore, the aim of the study was to maintain MDA-MB-231 cells under hypoxia conditions to allow cells to form a large number of invadopodia as a model, followed by identifying their nutrient utilization. The results of the study revealed an increase in the number of cells forming invadopodia under hypoxia conditions. Moreover, Western blot analysis confirmed that essential proteins for hypoxia and invadopodia, including HIF-1α, vascular endothelial growth factor (VEGF), metallopeptidase-2 (MMP-2), and Rho guanine nucleotide exchange factor 7 (β-PIX), significantly increased under hypoxia. Interestingly, phenotype microarray showed that only 11 chemical substrates from 367 types of substrates were significantly metabolized in hypoxia compared to in normoxia. This is thought to be fuel for hypoxia to drive the invasion process. In conclusion, we found 11 chemical substrates that could have potential energy sources for hypoxia-induced invadopodia formation of these cells. This may in part be a target in the hypoxic tumor and invadopodia formation. Additionally, these findings can be used as potential carrier targets in cancer-drug discovery, such as the usage of dextrin. Full article
(This article belongs to the Special Issue Novel Strategy for Molecular Targeted Therapy in Cancer)
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