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Current Research on Cancer Drug Resistance
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Current Research on Cancer Drug Resistance

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: 10 June 2024 | Viewed by 3372

Special Issue Editor

Dr. Jean-Pierre Jaffrézou

E-Mail Website
Guest Editor
CNRS UMR5549, CerCo, TMBI, CHU Purpan, Pavillon Baudot, 31059 Toulouse, France
Interests: cancer therapies; chemoresistance; microdomains; cell signaling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Drug resistance in cancer cells is a major hurdle in cancer therapy and can be classified as intrinsic and/or acquired resistance. It is a multifactorial phenomenon involving multiple interrelated or independent mechanisms. Regardless of the resistance mechanisms, chemoresistant cancer cells are the major cause of tumor recurrence or relapse and take a heavy toll in mortality. To overcome this hurdle, a number of strategies are being investigated, such as chemosensitization, gene therapy, and targeted therapies (e.g., immunotherapy). This Special Issue will address the increasing knowledge of the resistance mechanisms and the improvement of therapeutic approaches should promote better clinical outcomes.

Dr. Jean-Pierre Jaffrézou
Guest Editor

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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • chemotherapy
  • drug resistance
  • immunotherapy
  • immunotherapy resistance
  • signal transduction

Published Papers (2 papers)

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Research

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16 pages, 3862 KiB  
Article
Genomic Exploration of Distinct Molecular Phenotypes Steering Temozolomide Resistance Development in Patient-Derived Glioblastoma Cells
by Federica Fabro, Trisha V. Kers, Kate J. Feller, Cecile Beerens, Ioannis Ntafoulis, Ahmed Idbaih, Maite Verreault, Kate Connor, Archita Biswas, Manuela Salvucci, Jochen H. M. Prehn, Annette T. Byrne, Alice C. O’Farrell, Diether Lambrechts, Gonca Dilcan, Francesca Lodi, Ingrid Arijs, Andreas Kremer, Romain Tching Chi Yen, Miao-Ping Chien, Martine L. M. Lamfers and Sieger Leenstraadd Show full author list remove Hide full author list
Int. J. Mol. Sci. 2023, 24(21), 15678; https://doi.org/10.3390/ijms242115678 - 27 Oct 2023
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Abstract
Chemotherapy using temozolomide is the standard treatment for patients with glioblastoma. Despite treatment, prognosis is still poor largely due to the emergence of temozolomide resistance. This resistance is closely linked to the widely recognized inter- and intra-tumoral heterogeneity in glioblastoma, although the underlying [...] Read more.
Chemotherapy using temozolomide is the standard treatment for patients with glioblastoma. Despite treatment, prognosis is still poor largely due to the emergence of temozolomide resistance. This resistance is closely linked to the widely recognized inter- and intra-tumoral heterogeneity in glioblastoma, although the underlying mechanisms are not yet fully understood. To induce temozolomide resistance, we subjected 21 patient-derived glioblastoma cell cultures to Temozolomide treatment for a period of up to 90 days. Prior to treatment, the cells’ molecular characteristics were analyzed using bulk RNA sequencing. Additionally, we performed single-cell RNA sequencing on four of the cell cultures to track the evolution of temozolomide resistance. The induced temozolomide resistance was associated with two distinct phenotypic behaviors, classified as “adaptive” (ADA) or “non-adaptive” (N-ADA) to temozolomide. The ADA phenotype displayed neurodevelopmental and metabolic gene signatures, whereas the N-ADA phenotype expressed genes related to cell cycle regulation, DNA repair, and protein synthesis. Single-cell RNA sequencing revealed that in ADA cell cultures, one or more subpopulations emerged as dominant in the resistant samples, whereas N-ADA cell cultures remained relatively stable. The adaptability and heterogeneity of glioblastoma cells play pivotal roles in temozolomide treatment and contribute to the tumor’s ability to survive. Depending on the tumor’s adaptability potential, subpopulations with acquired resistance mechanisms may arise. Full article
(This article belongs to the Special Issue Current Research on Cancer Drug Resistance)
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Review

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20 pages, 4634 KiB  
Review
The Role of Regulatory T Cells in Cancer Treatment Resistance
by Anna Dąbrowska, Magdalena Grubba, Amar Balihodzic, Olga Szot, Bartosz Kamil Sobocki and Adrian Perdyan
Int. J. Mol. Sci. 2023, 24(18), 14114; https://doi.org/10.3390/ijms241814114 - 14 Sep 2023
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Abstract
Despite tremendous progress in cancer treatment in recent years, treatment resistance is still a major challenge for a great number of patients. One of the main causes is regulatory T lymphocytes (Tregs), which suppress excessive inflammatory responses via the secretion of immunosuppressive cytokines [...] Read more.
Despite tremendous progress in cancer treatment in recent years, treatment resistance is still a major challenge for a great number of patients. One of the main causes is regulatory T lymphocytes (Tregs), which suppress excessive inflammatory responses via the secretion of immunosuppressive cytokines and upregulate the immune checkpoints. Their abundance causes an immunosuppressive reprogramming of the tumor environment, which is ideal for tumor growth and drug inefficiency. Hence, regiments that can regain tumor immunogenicity are a promising strategy to overcome Tregs-mediated drug resistance. However, to develop effective therapeutic regimens, it is essential to understand the molecular mechanisms of Treg-mediated resistance. In this article, we gathered a comprehensive summary of the current knowledge on molecular mechanisms and the role of Tregs in cancer treatment resistance, including cancer immunotherapy, targeted therapy, chemotherapy, and radiotherapy. Full article
(This article belongs to the Special Issue Current Research on Cancer Drug Resistance)
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