Cited by 79RNA and protein synthesis mechanismsPI3K/AKT/mTOR signaling in cancerRNA modifications and cancer

Amidino-Rocaglates: A Potent Class of eIF4A Inhibitors

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Chu, Jennifer, Zhang, Wenhan, Cencic, Regina, Devine, William G., Beglov, Dmitri, Henkel, Thomas, Brown, Lauren E., Vajda, Sandor +2 more·2019·Cell Chemical Biology

Abstract

Rocaglates share a common cyclopenta[b]benzofuran core that inhibits eukaryotic translation initiation by modifying the behavior of the RNA helicase, eIF4A. Working as interfacial inhibitors, rocaglates stabilize the association between eIF4A and RNA, which can lead to the formation of steric barriers that block initiating ribosomes. There is significant interest in the development and expansion of rocaglate derivatives, as several members of this family have been shown to possess potent anti-neoplastic activity in vitro and in vivo. To further our understanding of rocaglate diversity and drug design, herein we explore the RNA clamping activity of >200 unique rocaglate derivatives. Through this, we report on the identification and characterization of a potent class of synthetic rocaglates called amidino-rocaglates. These compounds are among the most potent rocaglates documented to date and, taken together, this work offers important information that will guide the future design of rocaglates with improved biological properties.

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Crossref · 10.1016/j.chembiol.2019.08.008

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  • eIF4A1 and eIF4A2 share approximately 90% sequence similarity and both can integrate into the eIF4F complex.

    “The eIF4A gene encodes 2 isoforms, eIF4A1 and eIF4A2, which share approximately 90% sequence similarity and can both integrate into the eIF4F complex.”

    From Targeting eIF4A-dependent translation in genetically complex sarcoma (2026) · cites this paper as [34]

    The Introduction states that eIF4A2 shares 90% amino acid identity with eIF4A1 and participates in translation initiation. It describes eIF4A as a component of eIF4F, but does not explicitly say that both paralogs can integrate into that complex. Page numbers are unavailable in our copy. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Inhibition of both eIF4A isoforms by rocaglates may contribute to their efficacy.

    “This supports the idea that increased expression of eIF4A2 may protect cells from the effects of eIF4A1 inhibition; rocaglates such as [-]CR-1-31B inhibit both isoforms, which may contribute to their efficacy (21, 34).”
  • Rocaglates such as [-]CR-1-31B inhibit both eIF4A1 and eIF4A2 isoforms.

    “This supports the idea that increased expression of eIF4A2 may protect cells from the effects of eIF4A1 inhibition; rocaglates such as [-]CR-1-31B inhibit both isoforms, which may contribute to their efficacy (21, 34).”

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Authors
Chu, J., Zhang, W., Cencic, R., Devine, W. G., Beglov, D., Henkel, T., Brown, L. E., Vajda, S., Porco, J. A., & Pelletier, J.
Affiliations
  • McGill University (CA)
  • Boston University (US)
  • Institut du cancer Rosalind & Morris Goodman (CA)
Corresponding author
  • Porco, John A.
  • Pelletier, Jerry
Venue
Cell Chemical Biology
Publisher
Elsevier BV
Published
2019-11
Volume
26
Issue
11
Pages
1586-1593.e3
ISSN
  • 2451-9448 (ISSN-L)
  • 2451-9456
OpenAlex
W2973112770
Cited by
74
References
29
Citations by year
2026: 9 · 2025: 11 · 2024: 12 · 2023: 12 · 2022: 6 · 2021: 13 · 2020: 11
FWCI
2.46
Type
journal article
Language
en
Open access
Locations
  • Cell chemical biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • OpenBU (Boston University) (submittedVersion)
Funders
  • National Institutes of Health (R35 GM-118173, R01 GM-067041, R24 GM-111625, R35 GM-118078)
  • Canadian Institutes of Health Research (FDN- 148366)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA modifications and cancer
Keywords
rocaglates, RNA helicase, eukaryotic translation initiation, anticancer drug design
MeSH terms
Amidines, Animals, Antineoplastic Agents, Benzofurans, Cell Survival, Female, Humans, Lymphoma, Mice, Inbred C57BL, Recombinant Proteins, Ribosomes, RNA, Structure-Activity Relationship, Protein Biosynthesis, Drug Design, Eukaryotic Initiation Factor-4A, Mice, DEAD-box RNA Helicases

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