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Racioppo B, Qiu N, Adibekian A. Serine Hydrolase Activity‐Based Probes for use in Chemical Proteomics. Isr J Chem 2023. [DOI: 10.1002/ijch.202300016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Brittney Racioppo
- Department of Chemistry University of Illinois Chicago Chicago Illinois 60607 United States
- Skaggs Doctoral Program in the Chemical and Biological Sciences, Scripps Research La Jolla California 92037 United States
| | - Nan Qiu
- Department of Chemistry University of Illinois Chicago Chicago Illinois 60607 United States
- Skaggs Doctoral Program in the Chemical and Biological Sciences, Scripps Research La Jolla California 92037 United States
| | - Alexander Adibekian
- Department of Chemistry University of Illinois Chicago Chicago Illinois 60607 United States
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Tools for the discovery of biopolymer producing cysteine relays. Biophys Rev 2021; 13:247-258. [PMID: 33927786 DOI: 10.1007/s12551-021-00792-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/02/2021] [Indexed: 12/30/2022] Open
Abstract
Cysteine relays, where a protein or small molecule is transferred multiple times via transthiolation, are central to the production of biological polymers. Enzymes that utilise relay mechanisms display broad substrate specificity and are readily engineered to produce new polymers. In this review, I discuss recent advances in the discovery, engineering and biophysical characterisation of cysteine relays. I will focus on eukaryotic ubiquitin (Ub) cascades and prokaryotic polyhydroxyalkanoate (PHA) synthesis. These evolutionarily distinct processes employ similar chemistry and are readily modified for biotechnological applications. Both processes have been studied intensively for decades, yet recent studies suggest we do not fully understand their mechanistic diversity or plasticity. I will discuss the important role that activity-based probes (ABPs) and other chemical tools have had in identifying and delineating Ub cysteine-relays and the potential for ABPs to be applied to PHA synthases. Finally, I will offer a personal perspective on the potential of engineering cysteine-relays for non-native polymer production.
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Lin YS, Huang YL, Lee WF, Lin CH. Property and Application of BACy-Based Functional Hydrogels. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201300684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Liu SH, Lin CH, Liang FP, Chen PF, Kuo CD, Alam MM, Maiti B, Hung SK, Chi CW, Sun CM, Fu SL. Andrographolide downregulates the v-Src and Bcr-Abl oncoproteins and induces Hsp90 cleavage in the ROS-dependent suppression of cancer malignancy. Biochem Pharmacol 2013; 87:229-42. [PMID: 24161787 DOI: 10.1016/j.bcp.2013.10.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 10/15/2013] [Accepted: 10/15/2013] [Indexed: 12/14/2022]
Abstract
Andrographolide is a diterpenoid compound isolated from Andrographis paniculata that exhibits anticancer activity. We previously reported that andrographolide suppressed v-Src-mediated cellular transformation by promoting the degradation of Src. In the present study, we demonstrated the involvement of Hsp90 in the andrographolide-mediated inhibition of Src oncogenic activity. Using a proteomics approach, a cleavage fragment of Hsp90α was identified in andrographolide-treated cells. The concentration- and time-dependent induction of Hsp90 cleavage that accompanied the reduction in Src was validated in RK3E cells transformed with either v-Src or a human truncated c-Src variant and treated with andrographolide. In cancer cells, the induction of Hsp90 cleavage by andrographolide and its structural derivatives correlated well with decreased Src levels, the suppression of transformation, and the induction of apoptosis. Moreover, the andrographolide-induced Hsp90 cleavage, Src degradation, inhibition of transformation, and induction of apoptosis were abolished by a ROS inhibitor, N-acetyl-cysteine. Notably, Hsp90 cleavage, decreased levels of Bcr-Abl (another known Hsp90 client protein), and the induction of apoptosis were also observed in human K562 leukemia cells treated with andrographolide or its active derivatives. Together, we demonstrated a novel mechanism by which andrographolide suppressed cancer malignancy that involved inhibiting Hsp90 function and reducing the levels of Hsp90 client proteins. Our results broaden the molecular basis of andrographolide-mediated anticancer activity.
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Affiliation(s)
- Sheng-Hung Liu
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan; Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei 11221, Taiwan
| | - Chao-Hsiung Lin
- Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei 11221, Taiwan; Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei 11221, Taiwan
| | - Fong-Ping Liang
- Institute of Traditional Medicine, National Yang-Ming University, Taipei 11221, Taiwan
| | - Pei-Fen Chen
- Institute of Traditional Medicine, National Yang-Ming University, Taipei 11221, Taiwan
| | - Cheng-Deng Kuo
- Department of Research and Education, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Mohd Mujahid Alam
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30013, Taiwan
| | - Barnali Maiti
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30013, Taiwan
| | - Shih-Kai Hung
- Department of Radiation Oncology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan
| | - Chin-Wen Chi
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan; Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei 11221, Taiwan
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30013, Taiwan.
| | - Shu-Ling Fu
- Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei 11221, Taiwan; Institute of Traditional Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
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