|
1
|
Guo Y, Chen X, Gan Y, Li Y, Wang R. Targeted i 6A-RNA degradation through sequential Fluorination-Azidation and Click reaction with imidazole-based probes. Bioorg Med Chem Lett 2024; 108:129815. [PMID: 38795737 DOI: 10.1016/j.bmcl.2024.129815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/07/2024] [Accepted: 05/22/2024] [Indexed: 05/28/2024]
Abstract
We report the use of trimethylsilyl azide and Selectfluor to implement a standard protocol targeted at the prenylated nucleic acid known as i6A-RNA. After optimizing the conditions, we applied this method to regulate a wide range of i6A-RNA species using synthetic imidazole-based probes (I-IV). We observed that prenylated nucleic acid plays a crucial role in the cell hemostasis in A549 cell lines.
Collapse
Affiliation(s)
- Yuyang Guo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xiaoqian Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Youfang Gan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yuanyuan Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Rui Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, Guangdong 518063, China.
| |
Collapse
|
|
2
|
Li Y, Sun Y, Yang W, Yang L, Su M, Fang L, Zheng J, Yuan R, Liang W. A novel photoelectrochemical strategy for sequence-spot bispecific analysis of N 6-methyladenosine modification based on proximity ligation-triggered cascade amplification. Anal Chim Acta 2023; 1265:341287. [PMID: 37230570 DOI: 10.1016/j.aca.2023.341287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023]
Abstract
N6-methyladenosine (m6A) modification as the most prevalent mammalian RNA internal modification has been considered as the invasive biomarkers in clinical diagnosis and biological mechanism researches. It is still challenged to explore m6A functions due to technical limitations on base- and location-resolved m6A modification. Herein, we firstly proposed a sequence-spot bispecific photoelectrochemical (PEC) strategy based on in situ hybridization mediated proximity ligation assay for m6A RNA characterization with high sensitivity and accuracy. Firstly, the target m6A methylated RNA could be transferred to the exposed cohesive terminus of H1 based on the special self-designed auxiliary proximity ligation assay (PLA) with sequence-spot bispecific recognition. The exposed cohesive terminus of H1 could furtherly trigger the next catalytic hairpin assembly (CHA) amplification and in situ exponential nonlinear hyperbranched hybridization chain reaction for highly sensitive monitoring of m6A methylated RNA. Compared with conventional technologies, the proposed sequence-spot bispecific PEC strategy for m6A methylation of special RNA based on proximity ligation-triggered in situ nHCR performed improved sensitivity and selectivity with a detection limit of 53 fM, providing new insights into highly sensitive monitoring m6A methylation of RNA in bioassay, disease diagnosis and RNA mechanism.
Collapse
Affiliation(s)
- Yan Li
- Analytical & Testing Center, Southwest University, Chongqing, 400715, PR China; Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, Chongqing, 400038, PR China
| | - Yumeng Sun
- Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, Chongqing, 400038, PR China
| | - Weiguo Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Lan Yang
- Analytical & Testing Center, Southwest University, Chongqing, 400715, PR China
| | - Mingli Su
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Lichao Fang
- Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, Chongqing, 400038, PR China
| | - Junsong Zheng
- Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, Chongqing, 400038, PR China
| | - Ruo Yuan
- Analytical & Testing Center, Southwest University, Chongqing, 400715, PR China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
| | - Wenbin Liang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
| |
Collapse
|