1
|
Wang X, Zhao C, Wang X, Li Z, Shu Y, Wang J, You M. Synthesis of fluorescent AuNCs with RNA as template. Colloids Surf B Biointerfaces 2024; 241:114056. [PMID: 38924851 DOI: 10.1016/j.colsurfb.2024.114056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/23/2024] [Accepted: 06/22/2024] [Indexed: 06/28/2024]
Abstract
Although nucleic acids have been widely used as templates for the synthesis of nanomaterials, the synthesis of RNA-templated gold nanoclusters (AuNCs) has not been explored. In this work, we developed a simple strategy for synthesis of RNA-templated fluorescent AuNCs. We first evaluated the adsorption of different nucleoside monophosphates (NMP) on gold atoms. Our density function theory simulation and isothermal titration calorimetry measurements demonstrated that adenosine monophosphate (AMP) is a superior gold binder than other NMPs or deoxyadenosine monophosphate. Afterwards, NMP-templated synthesis of AuNCs was conducted in various pH environments, and our results indicated that bright green light-emitting AMP-templated AuNCs can be obtained at pH ∼6.0. In order to study the synthesis mechanism of AuNCs, we investigated the effects of reducing agent type and addition time, and the negative charge carried by template nucleotides on the fluorescence of AuNCs. Finally, we extended the template AMP into RNA hairpin structure, the fluorescence intensity was the highest when the cyclic bases were poly 16 A. This study opens new routes to synthesize fluorescent AuNCs using RNA templates.
Collapse
Affiliation(s)
- Xue Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Chenxi Zhao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Xiaojuan Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Zhihao Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yang Shu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jianhua Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Mingxu You
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, United States.
| |
Collapse
|
2
|
Tang P, Zhang J, Li X, Yang F, Zhao Q, Ma J, Hu Z, Sun H, Wang XB, Sun Z, Yang Y. Cryogenic Photoelectron Spectroscopic and Theoretical Study of the Electronic and Geometric Structures of Undercoordinated Osmium Chloride Anions OsCl n- ( n = 3-5). J Phys Chem A 2024; 128:5500-5507. [PMID: 38968614 DOI: 10.1021/acs.jpca.4c01713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2024]
Abstract
A series of anionic transition metal halides, OsCln- (n = 3-5), have been investigated using a newly developed, home-constructed, cryogenic anion cluster photoelectron spectroscopy. The target anionic species are generated through collision-induced dissociation in a two-stage ion funnel. The measured vertical detachment energies (VDEs) are 3.48, 4.54, and 4.81 eV for n = 3, 4, and 5, respectively. Density functional theory calculations at the B3LYP-D3(BJ)//aug-cc-pVTZ(-pp) level predict the lowest energy structures of the atomic form of OsCln- (n = 3-5) to be a quintet triangle, quartet square, and quintet square-based pyramid, respectively. The CCSD(T)-calculated VDEs and corresponding adiabatic detachment energies agree well with our experimental measurements. Analysis of the corresponding frontier molecular orbitals and charge density differences suggests that the d-orbitals of the transition metal Os play a primary role in the single-photon detachment processes, and the detached electrons originating from different molecular orbitals are distinguishable.
Collapse
Affiliation(s)
- Peng Tang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Jian Zhang
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xueying Li
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Fan Yang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Qixu Zhao
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Junyang Ma
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Zhubin Hu
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Haitao Sun
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zhenrong Sun
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yan Yang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| |
Collapse
|
3
|
Huang S, Luo H, Liu Y, Su W, Xiao Q. Comparable investigation of binding interactions between three arene ruthenium(II) thiosemicarbazone complexes and calf thymus DNA. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
4
|
|
5
|
Pyne P, Samanta N, Patra A, Das A, Sen P, Mitra RK. Polyethylene glycols affect electron transfer rate in phenosafranin-DNA complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 225:117464. [PMID: 31465973 DOI: 10.1016/j.saa.2019.117464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/06/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Long distance electron transfer (ET) between small ligands and DNA is a much studied phenomenon and is principally believed to occur through electron (or hole) hopping. Several studies have been carried out in aqueous environments while in real biological milieu the DNA molecules experience a more dense and heterogeneous environment containing otherwise indifferent molecular crowders. It is therefore expected that the ET could get modified in the presence of crowding agent and to investigate that we have made elaborate studies on steady state and time-resolved (picosecond (ps) and femtosecond (fs)-resolved) emission properties of a phenosafranine (PSF) intercalated to calf thymus (CT) DNA in the presence of ethylene glycol (EG) and polyethylene glycols (PEG) of different chain lengths (PEG 200, 400 and 1000). The emission of PSF gets considerably quenched when intercalated to DNA; the quenching is released when PEGs are added into it. The structural integrity of the CT DNA has been established using circular dichroism spectroscopy. CD measurements have evidenced only marginal changes in the DNA structure upon the addition of PEGs. ps-Resolved fluorescence measurements show significant decrease in the contribution of the DNA induced quenched time-constant of PSF upon the addition of PEGs, however, fs-resolved measurements show less noticeable changes in the time constants. Our study shows that the electron hopping rate through the guanine base in DNA core remains unaffected whereas the 'through space' electron transfer process does get affected in the presence of molecular crowders.
Collapse
Affiliation(s)
- Partha Pyne
- Department of Chemical, Biological and Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Nirnay Samanta
- Department of Chemical, Biological and Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Animesh Patra
- Department of Chemical, Biological and Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Aritra Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, UP, India
| | - Pratik Sen
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, UP, India.
| | - Rajib Kumar Mitra
- Department of Chemical, Biological and Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India.
| |
Collapse
|
6
|
Comparable investigation of in vitro interactions between three ruthenium(II) arene complexes with curcumin analogs and ctDNA. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Bemani P, Mohammadi M, Hakakian A. Anti-ROR1 scFv-EndoG as a Novel Anti-Cancer Therapeutic Drug. Asian Pac J Cancer Prev 2018; 19:97-102. [PMID: 29373898 PMCID: PMC5844643 DOI: 10.22034/apjcp.2018.19.1.97] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: Immunotoxins are proteins that consist of an antibody fragment linked to a toxin, used as agents for targeted
therapy of cancers. Although the most potent immunotoxins are made from bacterial and plant toxins, obstacles which
contribute to poor responses are immunogenicity in patients and rapid development of neutralizing antibodies. In the
present study we proposed a new therapeutic immunotoxin for targeted cancer therapy of ROR1 expressing cancers:
an anti ROR1 single chain fragment variable antibody (scFv)-endonuclease G (anti ROR1 scFv-EndoG). Methods:
The three-dimensional structure of anti ROR1 scFv-EndoG protein was modeled and structure validation tools were
employed to confirm the accuracy and reliability of the developed model. In addition, stability and integrity of the
model were assessed by molecular dynamic (MD) simulation. Results: All results suggested the protein model to
be acceptable and of good quality. Conclusions: Anti-ROR1 scFv-EndoG would be expected to bind to the ROR1
extracellular domain by its scFv portion and selectively deliver non-immunogenic human endonuclease G enzyme as
an end-stage apoptosis molecule into ROR1-expressing cancer cells and lead rapidly to apoptosis. We believe that anti
ROR1 and other anti-tumor antigen scFv-EndoG forms may be helpful for cancer therapy.
Collapse
Affiliation(s)
- Peyman Bemani
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran. ,
| | | | | |
Collapse
|
8
|
Huang S, Liang Y, Huang C, Su W, Lei X, Liu Y, Xiao Q. Systematical investigation of binding interaction between novel ruthenium(II) arene complex with curcumin analogs and ctDNA. LUMINESCENCE 2016; 31:1384-1394. [DOI: 10.1002/bio.3119] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/17/2016] [Accepted: 01/24/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Shan Huang
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine; Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Yu Liang
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
| | - Chusheng Huang
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine; Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Wei Su
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine; Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Xiaolin Lei
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
| | - Yi Liu
- State Key Laboratory of Virology; Wuhan University; Wuhan 430072 People's Republic of China
| | - Qi Xiao
- College of Chemistry and Material Science; Guangxi Teachers Education University; Nanning 530001 People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine; Guangxi Normal University; Guilin 541004 People's Republic of China
- State Key Laboratory of Virology; Wuhan University; Wuhan 430072 People's Republic of China
| |
Collapse
|
9
|
Huang S, Zhu F, Qian Q, Xiao Q, Su W. Thermodynamic investigation of interaction between [(η6-p-cymene) RuII(acetone-N4-phenylthiosemicarbazone)Cl]Cl anticancer drug and human serum albumin: spectroscopic and electrochemical studies. Biol Trace Elem Res 2015; 164:150-61. [PMID: 25475999 DOI: 10.1007/s12011-014-0184-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 11/17/2014] [Indexed: 12/16/2022]
Abstract
In this contribution, the interaction between [(η (6)-p-cymene)Ru(II)(acetone-N (4)-phenylthiosemicarbazone)Cl]Cl (Ru-TSC) anticancer drug and human serum albumin (HSA) was investigated by spectroscopic and electrochemical techniques. The fluorescence spectra results indicated that Ru-TSC anticancer drug could quench the intrinsic fluorescence of HSA through dynamic quenching mode. The calculated corresponding activation energy of the interaction between Ru-TSC anticancer drug and HSA was 35.62 kJ mol(-1). The distance between HSA and Ru-TSC anticancer drug was obtained according to fluorescence resonance energy transfer. The results of synchronous fluorescence spectra, three-dimensional fluorescence spectra, Fourier transform infrared spectroscopy (FTIR) spectra, and circular dichroism (CD) spectra indicated that the microenvironment and the conformation of HSA were all changed in the presence of Ru-TSC anticancer drug. The results of cyclic voltammetry further validated the interaction between Ru-TSC and HSA. These results indicated that the biological activity of HSA was affected by Ru-TSC anticancer drug dramatically.
Collapse
Affiliation(s)
- Shan Huang
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | | | | | | | | |
Collapse
|
10
|
Huang S, Zhu F, Xiao Q, Liang Y, Zhou Q, Su W. Thermodynamic investigation of the interaction between the [(η6-p-cymene)Ru(benzaldehyde-N4-phenylthiosemicarbazone)Cl]Cl anticancer drug and ctDNA: multispectroscopic and electrochemical studies. RSC Adv 2015. [DOI: 10.1039/c5ra03979g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The interaction between the [(η6-p-cymene)Ru(benzaldehyde-N4-phenylthiosemicarbazone)Cl]Cl anticancer drug and ctDNA was systematically investigated by multispectroscopic and electrochemical studies.
Collapse
Affiliation(s)
- Shan Huang
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Fawei Zhu
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Qi Xiao
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Yu Liang
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Quan Zhou
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Wei Su
- College of Chemistry and Material Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| |
Collapse
|
11
|
|
12
|
Huang S, Zhu F, Qiu H, Xiao Q, Zhou Q, Su W, Hu B. A sensitive quantum dots-based "OFF-ON" fluorescent sensor for ruthenium anticancer drugs and ctDNA. Colloids Surf B Biointerfaces 2014; 117:240-7. [PMID: 24657609 DOI: 10.1016/j.colsurfb.2014.02.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 12/11/2022]
Abstract
In this contribution, a simple and sensitive fluorescent sensor for the determination of both the three ruthenium anticancer drugs (1 to 3) and calf thymus DNA (ctDNA) was established based on the CdTe quantum dots (QDs) fluorescence "OFF-ON" mode. Under the experimental conditions, the fluorescence of CdTe QDs can be effectively quenched by ruthenium anticancer drugs because of the surface binding of these drugs on CdTe QDs and the subsequent photoinduced electron transfer (PET) process from CdTe QDs to ruthenium anticancer drugs, which render the system into fluorescence "OFF" status. The system can then be "ON" after the addition of ctDNA which brought the restoration of CdTe QDs fluorescence intensity, since ruthenium anticancer drugs broke away from the surface of CdTe QDs and inserted into double helix structure of ctDNA. The fluorescence quenching effect of the CdTe QDs-ruthenium anticancer drugs systems was mainly concentration dependent, which could be used to detect three ruthenium anticancer drugs. The limits of detection were 5.5 × 10(-8) M for ruthenium anticancer drug 1, 7.0 × 10(-8) M for ruthenium anticancer drug 2, and 7.9× 10(-8) M for ruthenium anticancer drug 3, respectively. The relative restored fluorescence intensity was directly proportional to the concentration of ctDNA in the range of 1.0 × 10(-8) M ∼ 3.0 × 10(-7) M, with a correlation coefficient (R) of 0.9983 and a limit of detection of 1.1 × 10(-9) M. The relative standard deviation (RSD) for 1.5 × 10(-7) M ctDNA was 1.5% (n = 5). There was almost no interference to some common chemical compounds, nucleotides, amino acids, and proteins. The proposed method was applied to the determination of ctDNA in three synthetic samples with satisfactory results. The possible reaction mechanism of CdTe QDs fluorescence "OFF-ON" was further investigated. This simple and sensitive approach possessed some potential applications in the investigation of interaction between drug molecules and DNA.
Collapse
Affiliation(s)
- Shan Huang
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Fawei Zhu
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Hangna Qiu
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Qi Xiao
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Quan Zhou
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Wei Su
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University), Ministry of Education, China
| |
Collapse
|
13
|
Huang S, Zhu F, Xiao Q, Zhou Q, Su W, Qiu H, Hu B, Sheng J, Huang C. Combined spectroscopy and cyclic voltammetry investigates the interaction between [(η6-p-cymene)Ru(benzaldehyde-N(4)-phenylthiosemicarbazone)Cl]Cl anticancer drug and human serum albumin. RSC Adv 2014. [DOI: 10.1039/c4ra06083k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The interaction between Ru anticancer drug and HSA was investigated systematically under physiological conditions.
Collapse
Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Fawei Zhu
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Qi Xiao
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Quan Zhou
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Wei Su
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Hangna Qiu
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
- China
| | - Jiarong Sheng
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Chusheng Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| |
Collapse
|