In conclusion, CDKN3 exhibits a high expression in HCC tumor tissues, and such expression substantially affects tumor patients' prognosis. The role of CDKN3 role in HCC is closely related to cell cycle-related pathways, showing its potential as a therapeutic target for HCC and as an indicator for the determination of prognosis.

Inhibiting PRMT6 with MS023 or mutating the RBM39 methylation site enhances Indisulam sensitivity in NSCLC and significantly improves its anti-tumor efficacy. Our findings identify methylated RBM39 as a key biomarker of Indisulam resistance and suggest a potential therapeutic strategy for NSCLC.

ER stress and the UPR are activated in CCC, and proteasome inhibitors disrupt this balance, ultimately leading to cell death. AGR2 may serve as a potential therapeutic target in CCC.

Notably, compound D16 induced more significant DNA damage and exhibited greater inhibition of DLBCL proliferation than the single-target inhibitor SNS-032 or C24. In addition, D16 showed potent anti-proliferative activities in various solid tumor cell lines, which may provide an innovative strategy for the treatment of cancer.

Moreover, data suggested that RBM39 degradation, combined with oxidative damage, could be more effective for HCC treatment than monotherapy, both in vitro and in xenograft mice models. Overall, we demonstrated that RBM39 regulated OGG1 stabilisation and improved BER efficiency, suggesting that combining the RBM39 degradant indisulam with the oxidising agent KBrO3 could be an emerging strategy for HCC treatment.

In vitro CDKs (CDK2, CDK5, and CDK6) and VEGFR2 kinase inhibition assays revealed higher potency of compounds 3 (IC50 0.026 µM) and 4c (IC50 0.048 µM) as compared to SNS-032 (IC50 0.052 µM) against CDK2, compounds 3 (IC50 0.315 µM), 4a (IC50 0.248 µM), 4b (IC50 0.276 µM), and 4c (IC50 0.338 µM) as compared to SNS-032 (IC50 0.476 µM) against CDK5, compounds 3 (IC50 0.221 µM), 4a (IC50 0.256 µM), 4b (IC50 0.282 µM), 4c (IC50 0.236 µM), and 4e (IC50 0.274 µM) as compared to SNS-032 (IC50 0.365 µM) against CDK6, and comparable potency of compound 4b (IC50 0.136 µM) with Sorafenib (IC50 0.114 µM) against VEGFR2. Furthermore, anticancer screening of compounds (3 and 4a-f) was performed against NCI (USA) 60 cancer cell lines by sulforhodamine B (SRB) colorimetric assay that revealed good to excellent anticancer activity.

Indisulam is a promising therapeutic candidate for AMKL and the RBM39-mediated ZMYND8 splicing plays an important role in promoting the development of AMKL.

AS modulators such as PRMT5 inhibitor GSK3326595 enhance immunotherapy efficacy by upregulating MHC class II expression and promoting T cell infiltration, while RBM39 inhibitor indisulam induces tumor-specific neoantigens. Future efforts should focus on refining AS-targeting therapies, identifying predictive biomarkers, and integrating these approaches into clinical applications. This review highlights the therapeutic potential of AS modulation in cancer immunotherapy and its implications for advancing precision oncology.

While moDC maturation was also rather resistant, T cell priming was almost completely abolished at a concentration of 10 µM. These effects should be considered in possible future combinations of immunotherapy with the mRNA splicing inhibitor indisulam.

In conclusion, these findings highlight Dinaciclib's therapeutic promise in OSCC by simultaneously disrupting cell cycle progression and inducing apoptosis. These results support further exploration of Dinaciclib as a viable monotherapy or combination treatment in OSCC and other HNSC subtypes to improve patient outcomes.

SNS-032 is a synthetic compound that specifically inhibits cyclin-dependent kinases 2, 7 and 9. In conclusion, these results suggest that caspase-3/GSDME-induced pyroptosis can be facilitated by SNS-032 treatment in BC cells, and DAC has the potential to enhance SNS-032-induced pyroptosis by increasing GSDME expression. This mechanistic insight indicates that SNS-032 is a promising therapeutic agent for BC treatment.

Based on potency and drug-ability, we have selected 'CDK1-naringenin' with the standard drug complex, 'CDK1-dinaciclib,' for molecular dynamic simulation at 100 nanoseconds using GROMACS 2020 software. Based on potency (average docking score: 8.35 kcal/mol.), physicochemical properties (obeyed Lipinski rule of five), toxicity (class-IV), fifty percent lethal dose (2000 mg/kg), bioavailability (0.55), drug-likeness score (0.82), along with ideal pharmacokinetics profiles and higher protein-ligand stability, naringenin is considered as a potential and non-toxic anticancer candidate to be used for melanoma as alternative or complementary agent. The integrative and systematic analyses not only highlight the potential of phytoflavonoids but also select the potential lead from the library within limited resources to accelerate the current anticancer drug discovery process.

P1, N=100, Recruiting, Shandong Suncadia Medicine Co., Ltd. | Not yet recruiting --> Recruiting

In this study, a potent and selective CDK9 degrader, C3, was developed through PROTAC modification of the CDK9 inhibitor, AT-7519...Our findings indicate that the targeted degradation of CDK9 could become a viable strategy for treating SCLC, highlighting its potential therapeutic value. Additionally, this research offers a general structural optimization and evaluation strategy to improve the degradative selectivity, metabolic stability, and oral availability of PROTAC molecules.

We confirmed the potential importance of cell cycle-mediated regulation of C/EBPδ by showing that four of the most potent C/EBPδ activators-R547, PHA793387, AZD5438 and AT7519, all multi-cyclin-dependent kinase (CDK) inhibitors-limited the clonal expansion of PDAC cells. Next to providing a valuable selection of C/EBPδ-modulating compounds for the use in preclinical studies, this report contributes to our understanding of the molecular regulatory mechanisms of C/EBPδ in general and in PDAC in particular.

After exposure to AT7519 during differentiation, primary human CD4+ T cells presented increased expression of IL17A/F, IFNG and GZMB and decreased expression of PDCD1 and CTLA4. These findings elucidate a previously unrecognized facet of AT7519 activity and suggest the potential incorporation of this molecule into immune therapies to augment the effectiveness of diverse anticancer strategies involving anti-programmed cell death protein 1 (anti-PD-1) and anti-cytotoxic T-lymphocyte antigen 4 (anti-CTLA4) regimens.

P1, N=100, Not yet recruiting, Shandong Suncadia Medicine Co., Ltd.

The findings suggest a strategy for cancer treatment based on synthetic lethality.

Moreover, miR-192-5p overexpression significantly inhibited CDKN3 mRNA and protein expression in proximal tubular cells. Overall, 11 miRNA-mRNA regulatory networks were predicted for human DKD pathogenesis; among these, the association of miR-192-5p- CDKN3 network DKD pathogenesis was confirmed in proximal tubular cell culture.

Although CDKN rs1801270 and rs1059234 genotypes were not associated with an overall risk of childhood ALL, CDKN1A rs1801270 polymorphism may serve as a protective predictor in males and as a potential marker for better prognosis of childhood ALL. Validation in larger and more diverse populations is necessary to confirm the feasibility of this predictor.

Together, these data support FRS positively correlates with poor prognosis and therapy resistance. The PHA-793887 could be a potential FRS inhibitor to improving the effectiveness of CRC management via bolstering antitumor immunity.

Additionally, dinaciclib affects different cell growth regulators like EGFR and STAT3 on gene and protein level, thus decreasing tumor growth. In summary, our study indicates that dinaciclib acts as a promising anti-tumorigenic agent in 2D and 3D in vitro BTC models and thus encourages further investigation.

The latter group of cases with a recessive genetic pattern (GG vs. GC+ CC) showed enhanced susceptibility to promoting PDAC (OR = 1.7; 95% CI: 1.2-2.9; p = 0.04). Our findings indicate that genetic variation in CDKN2A was linked to the susceptibility of extending PDAC, suggesting the need for additional research in a broader, multi-center context to approve the possible significance of this gene as a novel indicator for the stratification of PDAC.

We demonstrate in our exploratory study that biomarkers involved in the process of EMT could have a prognostic impact in a cohort of patients with BC uniformly treated and with long-term follow-up. Genes known to be involved in EMT were associated with improved eribulin efficacy, while suggesting a poorer outcome with CDK4/6i.

In conclusion, our report proposes a molecular mechanism, based on the signalling axis CDK12-BRCA1, involved in this newly identified therapeutic effect of dinaciclib, although other players implicated in HR should not be discarded. In addition, our data provide a rationale for more selective and personalised chemo/radiotherapy treatment according to the genetic background of the tumour.

Our results suggest that TFAM-induced changes of the mitochondrial genome lead to upregulated CDKN1A/p21 expression in colorectal cancer cells identifying p21 as a new possible linker between mitochondria and nucleus.

The combination of CDK4/6i and ET significantly improves PFS and OS compared to ET alone in both Asian and non-Asian patients with HR+/HER2-aBC. Although the magnitude of benefit appears to be independent of ethnicity, future clinical trials should devise a standardized method for stratifying patients by ethnicity to more effectively assess potential differences in treatment benefits.

Among the synthesised compounds, 2-(pyridin-3-yl)-4-(pyridin-3-yl)-5,6-dihydrobenzo[h]quinazoline 8b and 4-(2-(pyridin-3-yl)-5,6 dihydrobenzo[h]quinazolin-4-yl) phenol 5g exhibited potent anticancer activity compared to (R)-Roscovitine...Furthermore, the efficacy of compound 5g was validated through an in vitro CDK2/cyclin A2 enzyme inhibition assay. Interestingly, the observed CDK2 inhibitory activity showed a good correlation with the corresponding value for the antiproliferative activity of the tested compounds.

SGSM2 may not only serve as an important indicator for prognostic assessment. Still, it may also be a key target for the development of new therapeutic approaches, providing new perspectives on the treatment of UVM patients.

MammaPrint Risk groups were then correlated to an 11-gene signature profile that measures absence of CDK4 phosphorylation, corresponding to Rb loss-of-function and, therefore, predictive of resistance to the CDK4i, Palbociclib... These data identify High 2 tumors as least likely to respond to CDK targeted inhibition compared to other MammaPrint Risk groups. The increasing scores of Rb loss-of-function signature, 'Rbsig,' was closely correlated with MammaPrint High 2. The 11-gene signature profile, defined by absent CDK phosphorylation and high cellular proliferation, was significantly more likely to be associated with MammaPrint High 2 Risk tumors.

In silico molecular docking studies revealed that compounds 4, 7a, 7d, and 9 adopt a similar binding mode as AT7519 (I) within the CDK2 binding site...Based on these findings, it was concluded that the synthesized pyrazole derivatives, particularly compound 4, show potent CDK2 inhibition and significant anticancer activity, with promising drug-like properties and minimal toxicity. This positions them as strong candidates for further development as CDK2-targeting anticancer agents.

This effect is achieved by facilitating the formation of a ternary complex that requires the small molecule SR-4835, CDK12, and the adaptor protein DDB1, leading to the subsequent ubiquitination and degradation of cyclin K. We have successfully solved the structure of the ternary complex, enabling the de novo design of molecular glues that transform four different CDK12 scaffold inhibitors, including the clinical pan-CDK inhibitor dinaciclib, into cyclin K degraders. These results not only deepen our understanding of CDK12's role in cell regulation but also underscore significant progress in designing molecular glues for targeted protein degradation in cancers associated with dysregulated cyclin K activity.

P=N/A, N=420, Recruiting, Fondazione Policlinico Universitario Agostino Gemelli IRCCS | Trial completion date: Sep 2024 --> Sep 2025 | Trial primary completion date: Jul 2024 --> Jul 2025

P2, N=2, Terminated, Inova Health Care Services | N=74 --> 2 | Trial completion date: Jul 2025 --> Mar 2024 | Recruiting --> Terminated | Trial primary completion date: Jul 2025 --> Mar 2024; Lack of enrollment to meet the primary and secondary study goals

Our results indicated that dinaciclib and alvocidib exhibited similar activity and sensitivity in the neuroendocrine cluster. Also, a lineage factor named KLF5 recognized by inferred transcriptional factors activity could be suppressed by verteporfin.

P2, N=124, Recruiting, Alliance for Clinical Trials in Oncology | Trial completion date: Oct 2024 --> Jan 2028 | Trial primary completion date: Oct 2024 --> Jan 2026

This study discloses a novel RBM39-EZH2-β-catenin signaling axis that is crucial for CCA growth. Our findings suggest that simultaneous inhibition of RBM39 and EZH2 presents a promising therapeutic strategy for CCA treatment.

Furthermore, our investigation reveals that reactive cysteine residues are highly conserved across the Kinase Inhibitory Domain (KID) sequences of p21 proteins from higher eukaryotes, and the p27 and p57 human paralogs. We propose that the presence of conserved regulatory cysteines within the KIDs of p21 family members from multiple taxa provides those proteins with the capability for directly sensing ROS, enabling the direct regulation of cyclin kinase activity by ROS levels.

In this chemical biology study, we design RIPTACs that incorporate a ligand against a model TP connected via a linker to effector ligands such as JQ1 (BRD4) or BI2536 (PLK1) or CDK inhibitors such as TMX3013 or dinaciclib. RIPTACs accumulate selectively in cells expressing the HaloTag-FKBP target, form co-operative intracellular ternary complexes, and induce an anti-proliferative response in target-expressing cells.

P1, N=121, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Jul 2024 --> Aug 2025

Through this conclusion, the RET gene was upregulated wo-trt; the dinaciclib treatment RET gene was down-regulated computationally. To optimize the therapeutic targeting of RET, greater research into the mechanisms regulating RET transcription is necessary.

The CDK inhibitor dinaciclib exhibited anti-tumorigenic properties both in vitro and in vivo in EHE models. Dinaciclib has been rigorously tested in clinical trials and displayed an acceptable toxicity profile. Therefore, there is a potential therapeutic window for repurposing dinaciclib for the treatment of EHE.