Breast cancer
Breast cancer is a heterogeneous malignant disease arising from breast tissue, most commonly from the epithelial cells of the ducts or lobules.
Breast cancer is a heterogeneous malignant disease arising from breast tissue, most commonly from the epithelial cells of the ducts or lobules. It is one of the most frequently diagnosed cancers worldwide and remains a leading cause of cancer-related mortality among women, particularly because of metastatic disease, therapy resistance, and biologic diversity across subtypes. Clinically, breast cancer is often classified by hormone receptor status and other molecular features, which influence prognosis and treatment selection.
From a biomedical perspective, breast cancer is not a single entity but a spectrum of diseases shaped by tumor-intrinsic alterations and the surrounding tumor microenvironment. Recent research has emphasized pathways involving Estrogen receptor (ER) signaling, Phosphatidylinositol 3-kinase (PI3K)/Protein kinase B (PKB) signaling, DNA damage repair, ferroptosis, cuproptosis, immune-checkpoint signaling, and interactions with macrophage, dendritic cell, B-cell, and T-lymphocytes populations. These mechanisms are being explored to improve diagnosis, predict response, and overcome resistance to therapies such as paclitaxel, docetaxel, olaparib, radiation therapy, checkpoint inhibitor, and targeted cancer therapy.
Where the papers sit
21 papers from the last 6 months study breast cancer directly · updated from PubMed 12 Oct 2026
Study type 1 clinical trial · 6 observational · 9 human data · 4 preclinical · 1 unclassified
Themes no clear themes · 1 paradigm shift · 1 new direction
Those 21 do not share a common subject.
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Clinical care, survivorship, prevention, supportive services, diagnostics, molecular monitoring, drug combinations, delivery systems, and experimental therapies appear together without a shared biological or clinical question. Individual reports address COVID-19 recovery, cardiovascular outcomes, opioid use, metformin, ctDNA, vaccination, PI3K inhibition, and pyroptosis. No common therapeutic direction or recurring mechanism emerges across the group. The set is best treated as a collection of isolated breast cancer reports.
Breast cancer monitoring need not depend on repeated tissue biopsy or radiologic progression
The serial ctDNA study of metastatic HR+/HER2-negative breast cancer, alongside the cfDNA methylation study of advanced breast cancer, found that blood-derived tumor signals can identify resistance, monitor molecular response, and classify disease when tissue biopsy is invasive or may miss changing metastatic heterogeneity; serial ctDNA changes preceded radiologic progression by approximately five months, while cfDNA methylation signatures distinguished breast cancer and estrogen-receptor status. Together, these findings replace tissue-based subtyping and imaging-led response assessment as the necessary basis for monitoring with minimally invasive, longitudinal molecular surveillance 42817873Oct 42268298Jun.
Breast cancer is treated as a preventable disease through vaccination against its putative cell of origin
The Lalba mRNA-LNP vaccination study in carcinogen-exposed Sprague-Dawley rats used prophylactic immunization against alpha-lactalbumin-expressing mammary luminal progenitors rather than treating established tumors. Vaccination suppressed mammary tumorigenesis and improved tumor-free and overall survival without evident toxicity, giving breast cancer a role as a disease that may be intercepted immunologically before tumor formation, beyond the diagnostic, prognostic, treatment, and supportive-care roles represented elsewhere in the set 42685084Sep.
Papers
The 21 papers from the last 6 months that study breast cancer directly, newest first, by theme and by study type. Study types come from PubMed publication types and MeSH headings.
By theme
No clear themes (21)
- Impact of and recovery after Covid-19 on breast cancer diagnosis and care in Johannesburg, South Africa. BMC cancer · 3 Oct 2026 PMID 42829437
- Mastectomy and sentinel lymph node biopsy in a patient with left-sided breast cancer and Poland syndrome. BMJ case reports · 1 Oct 2026 PMID 42823144
- Serial ctDNA Analysis for Monitoring Molecular Response and Acquired Resistance in Metastatic NSCLC and HR+/HER2-Negative Breast Cancer: A Real-World Study. Cancer medicine · 1 Oct 2026 PMID 42817873
- Cardiovascular events and mortality after breast cancer diagnosis: multistate models in a nationwide cohort study. BMJ open · 23 Sept 2026 PMID 42778238
- Supportive care needs among patients with breast and cervical cancer at a tertiary cancer treatment center in ethiopia: a cross-sectional study. Scientific reports · 3 Sept 2026 PMID 42686973
- Breast cancer prevention by prophylactic Lalba mRNA-LNP vaccination. Proceedings of the National Academy of Sciences of the United States of America · 2 Sept 2026 PMID 42685084
- Acceptability, perceived outcomes and underlying mechanisms of a professionally led support group intervention for women with breast cancer using a qualitative method approach. British journal of health psychology · 29 Aug 2026 PMID 42665917
- Integrated multi-omics, machine learning, network toxicology, and molecular docking reveal potential mechanisms underlying methyl 4-hydroxybenzoate-associated breast cancer. Molecular diversity · 28 Aug 2026 PMID 42665765
- The Phosphatidylinositol 3-Kinase (PI3K) Inhibitor Inavolisib Has Breast-cancer Synergy Combined With Recombinant Methioninase But Not on Normal Cells. In vivo (Athens, Greece) · 28 Aug 2026 PMID 42665384
- Glycoconjugate strategy for GLUT-driven curcumin delivery and anticancer activity in breast cancer cells. Scientific reports · 14 Aug 2026 PMID 42601367
- Impact of Metformin Use on Clinical and Pathological Outcomes in Breast Cancer Patients With Type 2 Diabetes. Cancer reports (Hoboken, N.J.) · 30 Jul 2026 PMID 42528302
- HSimGCDA: A novel higher-order similarity graph representation learning method for identifying CircRNA-disease associations. Bioorganic chemistry · 29 Jul 2026 PMID 42526132
- Pattern of opioid prescriptions among patients with breast, lung, and colorectal cancer diagnosed with pre-existing chronic non-cancer pain. PloS one · 29 Jul 2026 PMID 42525681
- A prognostic risk model based on programmed cell death genes for breast cancer and its potential clinical application. Medicine · 25 Jul 2026 PMID 42499036
- PathMED: an R toolkit for single-sample molecular scoring and machine learning with omics data. Bioinformatics (Oxford, England) · 24 Jul 2026 PMID 42496598
- A Mitochondria-Targeted Iridium(III) Complex as a Potent Type-I/II Photosensitizer for Pyroptosis-Based Breast Cancer Therapy. Journal of medicinal chemistry · 23 Jul 2026 PMID 42489638
- An advanced AI-driven deep learning framework for early detection and precise diagnosis of breast cancer from medical images. Computers in biology and medicine · 13 Jul 2026 PMID 42442269
- Circulating Cell-Free DNA Methylation Profiling Enables Detection, Distinction, and Estrogen Receptor Status Classification of Advanced Breast Cancer. Cancer research · 10 Jun 2026 PMID 42268298
- Association between FTO rs9939609 genotype and breast cancer risk after bariatric surgery in the Swedish Obese Subjects study. Scientific reports · 6 May 2026 PMID 42091990
- Development and content validation of spiritual care e-book for Chinese breast cancer women undergoing chemotherapy. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 4 May 2026 PMID 42081034
- Multi-ancestry genome-wide association and integrated multi-omics analyses of endometriosis and its clinical manifestations. Nature genetics · 29 Apr 2026 PMID 42056605
By study type
Clinical trials (1)
- Association between FTO rs9939609 genotype and breast cancer risk after bariatric surgery in the Swedish Obese Subjects study. Scientific reports · 6 May 2026 PMID 42091990
Observational studies and case reports (6)
- Mastectomy and sentinel lymph node biopsy in a patient with left-sided breast cancer and Poland syndrome. BMJ case reports · 1 Oct 2026 PMID 42823144
- Serial ctDNA Analysis for Monitoring Molecular Response and Acquired Resistance in Metastatic NSCLC and HR+/HER2-Negative Breast Cancer: A Real-World Study. Cancer medicine · 1 Oct 2026 PMID 42817873
- Cardiovascular events and mortality after breast cancer diagnosis: multistate models in a nationwide cohort study. BMJ open · 23 Sept 2026 PMID 42778238
- Supportive care needs among patients with breast and cervical cancer at a tertiary cancer treatment center in ethiopia: a cross-sectional study. Scientific reports · 3 Sept 2026 PMID 42686973
- Impact of Metformin Use on Clinical and Pathological Outcomes in Breast Cancer Patients With Type 2 Diabetes. Cancer reports (Hoboken, N.J.) · 30 Jul 2026 PMID 42528302
- Pattern of opioid prescriptions among patients with breast, lung, and colorectal cancer diagnosed with pre-existing chronic non-cancer pain. PloS one · 29 Jul 2026 PMID 42525681
Human data, design not indexed (9)
- Impact of and recovery after Covid-19 on breast cancer diagnosis and care in Johannesburg, South Africa. BMC cancer · 3 Oct 2026 PMID 42829437
- Acceptability, perceived outcomes and underlying mechanisms of a professionally led support group intervention for women with breast cancer using a qualitative method approach. British journal of health psychology · 29 Aug 2026 PMID 42665917
- HSimGCDA: A novel higher-order similarity graph representation learning method for identifying CircRNA-disease associations. Bioorganic chemistry · 29 Jul 2026 PMID 42526132
- A prognostic risk model based on programmed cell death genes for breast cancer and its potential clinical application. Medicine · 25 Jul 2026 PMID 42499036
- PathMED: an R toolkit for single-sample molecular scoring and machine learning with omics data. Bioinformatics (Oxford, England) · 24 Jul 2026 PMID 42496598
- An advanced AI-driven deep learning framework for early detection and precise diagnosis of breast cancer from medical images. Computers in biology and medicine · 13 Jul 2026 PMID 42442269
- Circulating Cell-Free DNA Methylation Profiling Enables Detection, Distinction, and Estrogen Receptor Status Classification of Advanced Breast Cancer. Cancer research · 10 Jun 2026 PMID 42268298
- Development and content validation of spiritual care e-book for Chinese breast cancer women undergoing chemotherapy. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 4 May 2026 PMID 42081034
- Multi-ancestry genome-wide association and integrated multi-omics analyses of endometriosis and its clinical manifestations. Nature genetics · 29 Apr 2026 PMID 42056605
Preclinical: animal, cell and lab studies (4)
- Breast cancer prevention by prophylactic Lalba mRNA-LNP vaccination. Proceedings of the National Academy of Sciences of the United States of America · 2 Sept 2026 PMID 42685084
- The Phosphatidylinositol 3-Kinase (PI3K) Inhibitor Inavolisib Has Breast-cancer Synergy Combined With Recombinant Methioninase But Not on Normal Cells. In vivo (Athens, Greece) · 28 Aug 2026 PMID 42665384
- Glycoconjugate strategy for GLUT-driven curcumin delivery and anticancer activity in breast cancer cells. Scientific reports · 14 Aug 2026 PMID 42601367
- A Mitochondria-Targeted Iridium(III) Complex as a Potent Type-I/II Photosensitizer for Pyroptosis-Based Breast Cancer Therapy. Journal of medicinal chemistry · 23 Jul 2026 PMID 42489638
Unclassified: not yet indexed with MeSH (1)
- Integrated multi-omics, machine learning, network toxicology, and molecular docking reveal potential mechanisms underlying methyl 4-hydroxybenzoate-associated breast cancer. Molecular diversity · 28 Aug 2026 PMID 42665765
Written from 21 PubMed abstracts, each one listed by PMID above. Published: 2026-07-01. Last written: 2026-09-25 by GPT. Corrections: 2026-09-26 by GPT. Drafted by language models from published abstracts; not medical advice.