ArticleNature communications2026
CDK2 inhibitor BLU-222 synergizes with CDK4/6 inhibitors in drug resistant breast cancers through p21/p27 induction.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed.
- Next-generation CDK inhibitors in HR+/HER2- breast cancer.The Journal of clinical investigation · 2026Review
- Castration-resistant prostate cancer cells are addicted to the high activity of cyclin-dependent kinase 2.Molecular oncology · 2026Article
- Adaptive mechanisms and emerging cancer therapeutics for CDK2 inhibitors.Nature chemical biology · 2026Review
- Rewiring the Molecular Interplay of CDK4/6 Inhibitors in Lung Cancer: From Cell Cycle Control to Immune Microenvironment Remodeling.International journal of molecular sciences · 2026Review
- CDK4/6 Inhibitor-Induced Senescence in Cancer: Mechanisms and Therapeutic Implications.Cancers · 2026Review
- Acidosis-associated gene signature defines novel subtypes and dual-target therapeutic candidates in breast cancer.Journal of translational medicine · 2026Article
- Cyclin-dependent kinase 4 and 6 inhibitors and the breast cancer immune ecosystem: immune remodeling, resistance, and therapeutic reprogramming.Frontiers in immunology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
21 authors.
Funding
Abstract
Cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) combined with endocrine therapy are the standard first-line treatment for hormone receptor-positive, HER2-negative (HR+/HER2-) metastatic breast cancer, but resistance inevitably develops. In triple-negative breast cancer (TNBC), the efficacy of CDK4/6i remains uncertain. Our study shows that the selective CDK2 inhibitor BLU-222, while effective alone, enhances synergistic activity when combined with CDK4/6i in resistant HR+/HER2- and TNBC models, leading to increased apoptosis and cell cycle arrest. In vivo, combining BLU-222 with palbociclib or ribociclib produced significant antitumor activity across eight resistant models, driving durable tumor regression and prolonged survival. Mechanistically, BLU-222, alone or with palbociclib, upregulated p21 and p27 expression, enhanced p21 binding to CDK2 as well as p21 and p27 binding to CDK4. CRISPR knockout of p21 or p27 in palbociclib-resistant cells eliminated this synergy. Further, RNA sequencing revealed that combination treatment upregulated senescence and interferon pathways, providing mechanistic insight into the observed therapeutic synergy.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.