cancers-logo

Journal Browser

Journal Browser

Breast Cancer and Hormone-Related Therapy: 2nd Edition

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Therapy".

Deadline for manuscript submissions: closed (31 May 2026) | Viewed by 1752

Editor


E-Mail Website
Guest Editor
Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
Interests: molecular biology; breast cancer; estrogen receptor; hormone-based therapy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Breast cancer remains the most common malignancy in women. Over 70% of all breast tumors are initially characterized as being “hormonally sensitive” based on the expression of estrogen receptor alpha (ERα). ERα-positive tumors are known to be driven by estrogens and, as such, numerous therapies have been developed to either directly target ERα (such as tamoxifen and fulvestrant) or to suppress the production of estrogen throughout the body using ovarian function suppression and/or aromatase inhibitors. More recently, a newer class of drugs known as CDK4/6 inhibitors have demonstrated profound activity in the metastatic setting and are now commonly used in combination with aromatase inhibitors as a first line therapy for patients with recurrent ERα-positive tumors.

In addition to ERα, a number of other hormone-activated transcription factors, including ERβ, progesterone receptor, androgen receptor, and glucocorticoid receptor, have been shown to be expressed in breast cancer, and substantial efforts have been made to determine the contribution of these factors in breast cancer development, progression, and treatment. As a result of these efforts, and the world-wide uptake of many different forms of hormonal therapy, breast cancer has become a more manageable disease. However, with the significant extension of lifespan comes the increased probability of treatment failure, disease recurrence, and diminished efficacy of additional hormone-based treatment strategies.

This Special Issue relates to emerging hormonal therapies, both for newly diagnosed and resistant forms of breast cancer, the molecular mechanisms by which such therapies elicit their anti-cancer effects, and the cellular processes that are ultimately responsible for treatment failure.

This is the 2nd edition of the Special Issue. You are welcome to read the publications under the 1st edition “Breast Cancer and Hormone-Related Therapy”.

Dr. John R. Hawse
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 communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

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. Cancers 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 2900 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

  • breast cancer
  • estrogen receptor
  • hormone activated transcription factors
  • hormonal therapy
  • molecular mechanisms

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Related Special Issue

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

14 pages, 436 KB  
Article
Real-World Clinical Experience of First-Line Ribociclib Combined with an Aromatase Inhibitor in Metastatic Breast Cancer
by Ana S. Cvetanović, Kristina B. Jankovic, Ana S. Stojković, Nikola D. Živković, Miloš S. Kostić and Lazar S. Popović
Cancers 2026, 18(2), 242; https://doi.org/10.3390/cancers18020242 - 13 Jan 2026
Cited by 2 | Viewed by 1527
Abstract
Background/Objectives: Despite initial sensitivity to ET, most patients with HR+/HER2− breast cancer develop resistance. A key molecular mechanism of endocrine resistance in HR+ breast cancer involves dysregulation of the cyclin D–CDK4/6–Rb signaling axis, which controls the transition from the G1 to S phase [...] Read more.
Background/Objectives: Despite initial sensitivity to ET, most patients with HR+/HER2− breast cancer develop resistance. A key molecular mechanism of endocrine resistance in HR+ breast cancer involves dysregulation of the cyclin D–CDK4/6–Rb signaling axis, which controls the transition from the G1 to S phase of the cell cycle. Introducing cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i) has changed therapeutic paradigms in HR+/HER2− breast cancer, as their synergistic use with endocrine therapy significantly prolongs progression-free survival (PFS) and effectively mitigates clinically relevant endocrine resistance in this patient population compared to ET alone. The aim of our study was to evaluate patients’ clinical characteristics, the clinical effectiveness of treatment, measured by progression-free survival (PFS), and the safety profile of combined ribociclib (CDK4/6i) and standard endocrine therapy (aromatase inhibitor) as a first-line treatment for patients with HR+/HER2− advanced or metastatic breast cancer at the Clinic of Oncology, University Clinical Centre Nis, Serbia. Methods: In this study, we present a retrospective prospective analysis of all patients with metastatic HR+/HER2− breast cancer treated with a combination of ribociclib and aromatase inhibitors in the first-line treatment of metastatic HR+/HER2− BC between June 2022 and January 2025, with a follow-up completed in October 2025. A total of 132 patients who met the criteria were included. Results: The median progression-free survival (PFS) in the entire group was 30 months, while the 12-, 24-, and 36-month PFS were 82.15%, 72.24%, and 28.75%, respectively. The overall response rate (ORR) was 41.7%, while the clinical benefit rate (CBR) was 89.3%. There was no statistically significant difference in PFS with respect to tumor grade (p = 0.54), Ki 67 level (<20% vs. >20%, p = 0.83), or the type of adjuvant endocrine therapy used (tamoxifen vs. AI) It is important to emphasize that female patients who had not previously received chemotherapy had a better response to ribociclib compared to those who had (33 m vs. 28 m, p = 0.05). Although a numerical difference in PFS was found in patients with bone-only metastases compared to those with metastases in other organs, the difference was not statistically significant (PFS 33 m vs. 30 m, p = 0.27;), and efficacy was consistent across menopausal status groups. The most common adverse effect was neutropenia, occurring in 89.4% of patients, 47.7% of whom presented with grade 3 or 4. As for hepatotoxicity, transaminase increase occurred in 25 patients (18.8%), 5 of whom (3.8%) were grade 3–4, and QTc interval prolongation occurred in 5.3% of patients. Conclusions: The results in terms of PFS and AEs are consistent with those of pivotal studies and real clinical practice data, but a direct comparison is not possible due to differences in patient populations. Ribociclib once again demonstrated efficacy in all patient subgroups and remains the gold standard, alongside ET, for first-line HR+/HER2-negative mBC. Full article
(This article belongs to the Special Issue Breast Cancer and Hormone-Related Therapy: 2nd Edition)
Show Figures

Figure 1

Back to TopTop