Cell-based screening of extracts of natural sources to search for inhibitors of the ubiquitin-proteasome system and identification of proteasome inhibitors from the fungus Remotididymella sp.
Cell-based screening of extracts of natural sources to search for inhibitors of the ubiquitin-proteasome system and identification of proteasome inhibitors from the fungus Remotididymella sp.
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基于细胞的天然来源提取物筛选,以寻找泛素-蛋白酶体系统抑制剂,并鉴定来自真菌 Remotididymella sp 的蛋白酶体抑制剂。
DOI:
10.1016/j.bmcl.2022.128566
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发表时间:
2022
影响因子:
2.7
通讯作者:
Tsukamoto Sachiko
中科院分区:
文献类型:
--
作者:
Nishimura Soichiro;Hitora Yuki;Kawahara Teppei;Tanabe Mika;Ogata Eisuke;Kato Hikaru;Srikoon Pattaravadee;Watanabe Takashi;Tsukamoto Sachiko
The ubiquitin–proteasome system (UPS) regulates selective protein degradation to maintain protein homeostasis. Small molecules that inhibit the UPS-dependent protein degradation are promising anti-tumor agents. We report a cell-based luminescent assay using HeLa cells expressing luciferase-fused oxygen-dependent destruction domain (ODD) of hypoxia-inducible factor 1 α (HIF-1 α). ODD is degraded by the UPS and this assay system can aid in the identification of natural products that inhibit either process of the UPS, including ubiquitination/deubiquitination and proteasomal degradation. This reporter assay can exclude the influences of coloring or fluorescent compounds in extracts, thereby leading to effective high-throughput processing. The screening of 15,025 extracts of natural sources identified the culture extract of the fungusRemotididymellasp. (18F02908). Bioassay-guided isolation yielded two new polyketides, mellains A (1) and B (2), together with leptosphaerodione (3) and its acetone adduct4. Compound1was revealed to have an unprecedented benzo[g]isoquinoline-8,10-dione skeleton. Evaluation of the biological activities demonstrated that these polyketides inhibit the proteasomal proteolysis. This is the first report of the identification of proteasome inhibitors from natural sources using a cell-based reporter assay targeting UPS inhibitors.
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影响因子:
7.8
作者:
Kisselev AF;Groettrup M
通讯作者:
Groettrup M
DOI:
10.7164/antibiotics.53.1313
发表时间:
2000
期刊:
The Journal of antibiotics
影响因子:
--
作者:
A. Berg;K. Reiber;H. Dörfelt;G. Walther;B. Schlegel;U. Gräfe
通讯作者:
U. Gräfe
影响因子:
2.2
作者:
H. Günther;H. Seel;H. Schmickler
通讯作者:
H. Schmickler
影响因子:
3.6
作者:
Kuhn DJ;Orlowski RZ
通讯作者:
Orlowski RZ
影响因子:
2.7
作者:
S. Tsukamoto;Tomoharu Takeuchi;H. Rotinsulu;R. E. Mangindaan;R. V. VAN SOEST;K. Ukai;Hisayoshi Kobayashi;M. Namikoshi;T. Ohta;H. Yokosawa
通讯作者:
S. Tsukamoto;Tomoharu Takeuchi;H. Rotinsulu;R. E. Mangindaan;R. V. VAN SOEST;K. Ukai;Hisayoshi Kobayashi;M. Namikoshi;T. Ohta;H. Yokosawa