Cited by 698Protein Degradation and InhibitorsCell death mechanisms and regulationUbiquitin and proteasome pathways

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

A selective BCL-XL PROTAC degrader achieves safe and potent antitumor activity

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Abstract

B-cell lymphoma extra large (BCL-X L) is a well-validated cancer target. However, the on-target and dose-limiting thrombocytopenia limits the use of BCL-X L inhibitors, such as ABT263, as safe and effective anticancer agents. To reduce the toxicity of ABT263, we converted it into DT2216, a BCL-X L proteolysis-targeting chimera (PROTAC), that targets BCL-X L to the Von Hippel-Lindau (VHL) E3 ligase for degradation. We found that DT2216 was more potent against various BCL-X L-dependent leukemia and cancer cells but considerably less toxic to platelets than ABT263 in vitro because VHL is poorly expressed in platelets. In vivo, DT2216 effectively inhibits the growth of several xenograft tumors as a single agent or in combination with other chemotherapeutic agents, without causing appreciable thrombocytopenia. These findings demonstrate the potential to use PROTAC technology to reduce on-target drug toxicities and rescue the therapeutic potential of previously undruggable targets. Furthermore, DT2216 may be developed as a safe first-in-class anticancer agent targeting BCL-X L.

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Metadata

Authors
Khan, S., Zhang, X., Lv, D., Zhang, Q., He, Y., Zhang, P., Liu, X., Thummuri, D., Yuan, Y., Wiegand, J. S., Pei, J., Zhang, W., Sharma, A., McCurdy, C. R., Kuruvilla, V. M., Baran, N., Ferrando, A. A., Kim, Y.-M., Rogojina, A., Houghton, P. J., Huang, G., Hromas, R., Konopleva, M., Zheng, G., & Zhou, D.
Affiliations
  • University of Florida (US)
  • The University of Texas MD Anderson Cancer Center (US)
  • Columbia University (US)
  • Children's Hospital Los Angeles (US)
  • The University of Texas at San Antonio Health Science Center (US)
Corresponding author
  • Zheng, Guangrong
  • Zhou, Daohong
Venue
Nature Medicine
Published
2019-12
Volume
25
Issue
12
Pages
1938-1947
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2990669650
Cited by
688
References
63
Citations by year
2026: 98 · 2025: 127 · 2024: 116 · 2023: 103 · 2022: 105 · 2021: 83 · 2020: 55
FWCI
20.26
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH
  • CPRIT
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
Bcl-xL, PROTACs, VHL E3 ubiquitin ligase, thrombocytopenia, navitoclax, platelet toxicity, leukemia, tumor xenografts, BCL-2 inhibitor, on-target toxicity
MeSH terms
Aniline Compounds, Animals, Antineoplastic Agents, Blood Platelets, Humans, Sulfonamides, Thrombocytopenia, Gene Expression Regulation, Neoplastic, bcl-X Protein, Mice, Von Hippel-Lindau Tumor Suppressor Protein, Proteolysis, Heterografts

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