BackgroundNon-small cell lung Cancer (NSCLC) persists as a lethal neoplastic manifestation, exhibiting a diminished 5-year survival rate, partially attributable to chemotherapeutic resistance. This investigative endeavor aimed to elucidate the synergistic antineoplastic effects and underlying mechanisms of the SMYD2 inhibitor BAY-598 and the chemotherapeutic agent doxorubicin (DOX) in NSCLC.MethodsThe human non-small cell lung cancer cell lines A549 and H460 were subjected to treatment regimens involving BAY-598 and/or DOX. Cellular viability, apoptotic events, invasive capacity, and migratory potential were evaluated through the implementation of CCK-8 assays, flow cytometric analyses, and Transwell assays, respectively. Protein expression levels were quantified via Western blot analyses. An in vivo xenograft murine model was established to assess therapeutic efficacy.ResultsBAY-598 and DOX synergistically suppressed the viability, invasiveness, and migratory capabilities of NSCLC cells. Co-treatment Promoting cell apoptosis and cell cycle arrest. Additionally, Furthermore, co-administration significantly inhibited cell migration and invasion. Mechanistic studies revealed coordinately inhibited JAK-STAT signaling upon combination treatment. In vivo study further validated the synergistic antitumor efficacy of BAY-598 and DOX against NSCLC xenografts.ConclusionsOur findings demonstrate that BAY-598 potentiates the anti-cancer effects of DOX in non-small cell lung cancer cells by modulating the JAK/STAT signaling pathway as a synergistic strategy. The combination holds promise as an emerging therapeutic strategy for NSCLC. Further optimization and validation are warranted to promote its translational potential.

01 Feb 2023·AngiogenesisQ1 · MEDICINE

Targeting SMYD2 inhibits angiogenesis and increases the efficiency of apatinib by suppressing EGFL7 in colorectal cancer

Q1 · MEDICINE

Article

Author: Zhang, Yi ; Song, Hu ; Wang, Jiaqi ; Song, Jun ; Zhou, Lei ; Li, Chao ; Zhou, Jingyu ; Jiang, Tao ; Xu, Yixin ; Sun, Xiaoxiong

Angiogenesis is an essential factor affecting the occurrence and development of solid tumors. SET And MYND Domain Containing 2 (SMYD2) serves as an oncogene in various cancers. However, whether SMYD2 is involved in tumor angiogenesis remains unclear. Here, we report that SMYD2 expression is associated with microvessel density in colorectal cancer (CRC) tissues. SMYD2 promotes CRC angiogenesis in vitro and in vivo. Mechanistically, SMYD2 physically interacts with HNRNPK and mediates lysine monomethylation at K422 of HNRNPK, which substantially increases RNA binding activity. HNRNPK acts by binding and stabilizing EGFL7 mRNA. As an angiogenic stimulant, EGFL7 enhances CRC angiogenesis. H3K4me3 maintained by PHF8 mediates the abnormal overexpression of SMYD2 in CRC. Moreover, targeting SMYD2 blocks CRC angiogenesis in tumor xenografts. Treatment with BAY-598, a functional inhibitor of SMYD2, can also synergize with apatinib in patient-derived xenografts. Overall, our findings reveal a new regulatory axis of CRC angiogenesis and provide a potential strategy for antiangiogenic therapy.

03 Jun 2016·Journal of Proteome ResearchQ2 · BIOLOGY

An Integrative Proteomic Approach Identifies Novel Cellular SMYD2 Substrates

Q2 · BIOLOGY

Article

Author: Barsyte-Lovejoy, Dalia ; Ahmed, Hazem ; Arrowsmith, Cheryl H. ; Schapira, Matthieu ; Duan, Shili

Protein methylation is a post-translational modification with important roles in transcriptional regulation and other biological processes, but the enzyme-substrate relationship between the 68 known human protein methyltransferases and the thousands of reported methylation sites is poorly understood. Here, we propose a bioinformatic approach that integrates structural, biochemical, cellular, and proteomic data to identify novel cellular substrates of the lysine methyltransferase SMYD2. Of the 14 novel putative SMYD2 substrates identified by our approach, six were confirmed in cells by immunoprecipitation: MAPT, CCAR2, EEF2, NCOA3, STUB1, and UTP14A. Treatment with the selective SMYD2 inhibitor BAY-598 abrogated the methylation signal, indicating that methylation of these novel substrates was dependent on the catalytic activity of the enzyme. We believe that our integrative approach can be applied to other protein lysine methyltransferases, and help understand how lysine methylation participates in wider signaling processes.

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Indication	Highest Phase	Country/Location	Organization	Date
Neoplasms	Discovery	DE	Bayer AG	-

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