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Molecular Mechanism Involved in Cancer Metastasis

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Oncology".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 1542

Special Issue Editor


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Guest Editor
1. Human Genetics Laboratory (LR99ES10), Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia
2. LR18ES03 Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, Faculty of Science of Tunis, University Tunis El Manar, Tunis 2092, Tunisia
3. Department of Biological Sciences, Faculty of Science of Tunis, University Tunis El Manar, Tunis 2092, Tunisia
Interests: cell death; mitotic catastrophe; genomic instability; metastasis; migration; cancer
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Special Issue Information

Dear Colleagues,

Tumour invasion and metastasis are the major causes of tumour recurrence and patient mortality. Metastasis is a complex process that occurs through sequential steps that include invasion into adjacent tissues, intravasation, transport through the circulatory system, arrest at a secondary site, extravasation, and growth in a secondary organ. However, the role of genetic and biochemical determinants and the molecular mechanism of metastasis remain poorly understood.

The aim of this Special Issue is to investigate and/or discuss the morphological and molecular mechanisms and dynamics in cancer metastasis. We invite authors to submit full-length original and review articles on cancer research in both the in vitro and in vivo testing of tumour tissues to elucidate the metastatic process and to evaluate the therapeutic effects of anticancer drugs and their potential clinical application.

Dr. Mohamed Jemaà
Guest Editor

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Keywords

  • cell motility
  • cell migration
  • spheroid
  • metastasis
  • extracellular matrix
  • cell architecture
  • lamellipodia
  • epithelial-mesenchymal transition EMT
  • videomicroscopy
  • confocal microscopy
  • animal model

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Published Papers (1 paper)

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Research

13 pages, 6359 KiB  
Article
JNK Inhibition Overcomes Resistance of Metastatic Tetraploid Cancer Cells to Irradiation-Induced Apoptosis
by Mohamed Jemaà, Nouha Setti Boubaker, Nesrine Kerkeni and Stephan M. Huber
Int. J. Mol. Sci. 2025, 26(3), 1209; https://doi.org/10.3390/ijms26031209 - 30 Jan 2025
Viewed by 781
Abstract
Tetraploidy is a condition in which the entire set of chromosomes doubles, most often due to errors during cell division. Tetraploidy can lead to genomic instability and significant consequences, in particular metastasis and treatment failure in tumours, including radiotherapy. The development of new [...] Read more.
Tetraploidy is a condition in which the entire set of chromosomes doubles, most often due to errors during cell division. Tetraploidy can lead to genomic instability and significant consequences, in particular metastasis and treatment failure in tumours, including radiotherapy. The development of new strategies to sensitise these cells to treatment is of great importance. In our study, we investigated the in vitro combination of chemical treatment with the kinase inhibitor SP600125 and irradiation on diploid versus metastatic tetraploid RKO colon cancer clones. We assessed mitochondrial transmembrane potential, cell cycle and subG1 population by flow cytometry and performed clonogenic assays to evaluate cell sensitivity. We found that the combination overcomes irradiation resistance in metastatic tetraploid clones. To identify the main pathway involved in cell sensitivity, we screened the Harvard Medical School KINOMEscan library and performed a gene ontology biological process analysis. We found that the major kinases inhibited by SP600125 were ANKK1, BIKE, IKKA, JNK1, MP2K3, MP2K4, MKNK2, MYLK, PLK4, RPS6KA4(Kin,Dom,1), MYLK4 and TTK, and the pathways involved in clone sensitivity were DNA damage repair, radiation resistance and apoptosis, through JNK pathway inhibition. Finally, our main finding was that combined treatment with SP600125 and radiotherapy reduced the resistance of metastatic tetraploid cells to treatment, essentially by inhibiting the JNK pathway. This result supports a promising anti-cancer strategy to overcome the resistance of tetraploid cancer cells to irradiation. Full article
(This article belongs to the Special Issue Molecular Mechanism Involved in Cancer Metastasis)
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