Trans-chalcone increases p53 activity via DNAJB1/HSP40 induction and CRM1 inhibition

PLoS One. 2018 Aug 17;13(8):e0202263. doi: 10.1371/journal.pone.0202263. eCollection 2018.

Abstract

Naturally-occurring chalcones and synthetic chalcone analogues have been demonstrated to have many biological effects, including anti-inflammatory, anti-malarial, anti-fungal, and anti-oxidant/anti-cancerous activities. Compared to other chalcones, trans-chalcone exhibits superior inhibitory activity in cancer cell growth as shown via in vitro assays, and exerts anti-cancerous effects via the activation of the p53 tumor suppressor protein. Thus, characterization of the specific mechanisms, by which trans-chalcone activates p53, can aid development of new chemotherapeutic drugs that can be used individually or synergistically with other drugs. In this report, we found that trans-chalcone modulates many p53 target genes, HSP40 being the most induced gene in the RNA-Seq data using trans-chalcone-treated cells. CRM1 is also inhibited by trans-chalcone, resulting in the accumulation of p53 and other tumor suppressor proteins in the nucleus. Similar effects were seen using trans-chalcone derivatives. Overall, trans-chalcone could provide a strong foundation for the development of chalcone-based anti-cancer drugs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activating Transcription Factor 3 / metabolism
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Caspase 3 / metabolism
  • Caspase 7 / metabolism
  • Cell Line, Tumor
  • Cell Nucleus / drug effects
  • Cell Nucleus / metabolism
  • Chalcone / chemistry
  • Chalcone / pharmacology*
  • Exportin 1 Protein
  • Growth Differentiation Factor 15 / metabolism
  • HSP40 Heat-Shock Proteins / metabolism*
  • Humans
  • Karyopherins / antagonists & inhibitors
  • Karyopherins / metabolism*
  • Receptors, Cytoplasmic and Nuclear / antagonists & inhibitors
  • Receptors, Cytoplasmic and Nuclear / metabolism*
  • Signal Transduction / drug effects
  • Transcription, Genetic / drug effects
  • Tumor Suppressor Protein p53 / metabolism*

Substances

  • ATF3 protein, human
  • Activating Transcription Factor 3
  • Antineoplastic Agents
  • DNAJB1 protein, human
  • GDF15 protein, human
  • Growth Differentiation Factor 15
  • HSP40 Heat-Shock Proteins
  • Karyopherins
  • Receptors, Cytoplasmic and Nuclear
  • Tumor Suppressor Protein p53
  • Chalcone
  • CASP3 protein, human
  • CASP7 protein, human
  • Caspase 3
  • Caspase 7

Grants and funding

This work was supported by a grant from Fundação de Amparo à Pesquisa do Estado de São Paulo (grant no.: 14/15307-7). This work was also supported by the Research Resettlement Fund for the new faculty, the Research Institute for Veterinary Science, and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2018R1A2B2002923) to SJB. GS holds a scholarship via a grant from the CAPES Foundation—an agency under the Ministry of Education of Brazil (grant no.: BEX 3159/14-0). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.