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De S, Ghosh D, Das G. Luminogenic and Bactericidal Studies of an Acrylonitrile-Based AIEgen. Chem Asian J 2024:e202400148. [PMID: 38567713 DOI: 10.1002/asia.202400148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/02/2024] [Indexed: 05/12/2024]
Abstract
We have synthesized an aggregation-induced emissive molecule that exhibits promising photophysical characteristics. The aggregating aptitude is demonstrated by binary solvent mixture and it is emissive in both solution and solid state. The luminogenic characteristics are employed in creating fluorescent inks as well as for the detection of nitro antibiotics in biofluids and in solid support. Moreover, the acrylonitrile-based compound is bactericidal tested on E. coli and B. subtilis.
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Affiliation(s)
- Sagnik De
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Debolina Ghosh
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Gopal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, 781039, India
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam, 781039, India
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Badparvar F, Marjani AP, Salehi R, Ramezani F. pH/redox responsive size-switchable intelligent nanovehicle for tumor microenvironment targeted DOX release. Sci Rep 2023; 13:22475. [PMID: 38110480 PMCID: PMC10728153 DOI: 10.1038/s41598-023-49446-x] [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: 08/10/2023] [Accepted: 12/08/2023] [Indexed: 12/20/2023] Open
Abstract
Tumor microenvironment (TME) targeted strategy could control the drug release in tumor cells more accurately and creates a new opportunity for enhanced site-specific targeted delivery. In this study, (PAA-b-PCL-S-S-PCL-b-PAA) copolymeric nanoparticles (NPs) with size-switchable ability and dual pH/redox-triggered drug release behavior were designed to significantly promote cancer uptake (cell internalization of around 100% at 30 min) and site-specific targeted doxorubicin (DOX) delivery in MDA-MB-231 tumor cells. NPs surface charge was shifted from - 17.8 to - 2.4 and their size shrunk from 170.3 to 93 nm in TME. The cell cycle results showed that DOX-loaded NPs showed G2/M (68%) arrest, while free DOX showed sub-G1 arrest (22%). Apoptosis tests confirmed that the cells treated with DOX-loaded NPs showed a higher amount of apoptosis (71.6%) than the free DOX (49.8%). Western blot and RT-PCR assays revealed that the apoptotic genes and protein levels were significantly upregulated using the DOX-loaded NPs vs. the free DOX (Pvalue < 0.001). In conclusion, dual pH/redox-responsive and size-switchable DOX-loaded NPs developed here showed outstanding anti-tumoral features compared with free DOX that might present a prospective platform for tumor site-specific accumulation and drug release that suggest further in vivo research.
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Affiliation(s)
- Fahimeh Badparvar
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
| | | | - Roya Salehi
- Drug Applied Research Center and Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Fatemeh Ramezani
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Sharma R, Shrivastava P, Gautam L, Agrawal U, Mohana Lakshmi S, Vyas SP. Rationally designed block copolymer-based nanoarchitectures: An emerging paradigm for effective drug delivery. Drug Discov Today 2023; 28:103786. [PMID: 37742910 DOI: 10.1016/j.drudis.2023.103786] [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: 05/05/2023] [Revised: 09/05/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023]
Abstract
Various polymeric materials have been investigated to produce unique modes of delivery for drug modules to achieve either temporal or spatial control of bioactives delivery. However, after intravenous administration, phagocytic cells quickly remove these nanostructures from the systemic circulation via the reticuloendothelial system (RES). To overcome these concerns, ecofriendly block copolymers are increasingly being investigated as innovative carriers for the delivery of bioactives. In this review, we discuss the design, fabrication techniques, and recent advances in the development of block copolymers and their applications as drug carrier systems to improve the physicochemical and pharmacological attributes of bioactives.
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Affiliation(s)
- Rajeev Sharma
- Amity Institute of Pharmacy, Amity University Madhya Pradesh, Gwalior, MP 474005, India
| | - Priya Shrivastava
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr Harisingh Gour Central University, Sagar, MP 470003, India
| | - Laxmikant Gautam
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr Harisingh Gour Central University, Sagar, MP 470003, India; Babulal Tarabai Institute of Pharmaceutical Science, Sagar, M.P., 470228
| | - Udita Agrawal
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr Harisingh Gour Central University, Sagar, MP 470003, India
| | - S Mohana Lakshmi
- Amity Institute of Pharmacy, Amity University Madhya Pradesh, Gwalior, MP 474005, India
| | - Suresh P Vyas
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr Harisingh Gour Central University, Sagar, MP 470003, India.
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WIBOWO AA, BÜTÜN V. pH-responsive intermediary layer cross-linked micelles from zwitterionic triblock copolymers and investigation of their drug-release behaviors. Turk J Chem 2023; 47:1103-1115. [PMID: 38173758 PMCID: PMC10760816 DOI: 10.55730/1300-0527.3597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 10/31/2023] [Accepted: 09/30/2023] [Indexed: 01/05/2024] Open
Abstract
ABC-type triblock copolymers, namely poly[(ethylene glycol)methyl ether]-block-poly(tert-butyl methacrylate)-block-poly[2-N-(diisopropylamino)ethyl methacrylate] (MPEG-b-PBuMA-b-PDPA), were first synthesized and then the middle blocks were successfully converted into poly(methacrylic acid) to obtain MPEG-b-PMAA-b-PDPA zwitterionic triblock copolymers. These block copolymers were soluble in water and formed micellar aggregates with complex cores via hydrogen bonding interactions between MPEG and PMAA blocks below pH 4.0. When the pH was between 5.0 and 7.0, due to charge compensation between partially protonated PDPA and partially ionized PMAA blocks, micelles with polyion complex cores were observed. If the solution pH was above 8.0, deprotonation of tertiary amine groups provided a hydrophobic character to the PDPA block, which resulted in the formation of PDPA-core micelles while MPEG/anionic PMAA hybrid blocks formed hydrated coronas. Intermediary layer cross-linked (ILCL) micelles from PDPA-core micelles were also prepared by cross-linking the inner PMAA shell. The hydrophobic drug dipyridamole (DIP) was used to investigate the release profile of ILCL micelles. DIP can be loaded to the PDPA cores of the micelles in basic aqueous media. An increase in the degree of cross-linking causes slower release for the model drug. It was concluded that the more complex matrix formation in the intermediary layer of the micelles via cross-linking retards the drug release from the core.
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Affiliation(s)
- Agung Ari WIBOWO
- Department of Polymer Science and Technology, Institute of Science, Eskişehir Osmangazi University, Meşelik Campus, Eskişehir,
Turkiye
| | - Vural BÜTÜN
- Department of Polymer Science and Technology, Institute of Science, Eskişehir Osmangazi University, Meşelik Campus, Eskişehir,
Turkiye
- Department of Chemistry, Faculty of Science, Eskişehir Osmangazi University, Eskişehir,
Turkiye
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Chen K, Li Y, Li Y, Tan Y, Liu Y, Pan W, Tan G. Stimuli-responsive electrospun nanofibers for drug delivery, cancer therapy, wound dressing, and tissue engineering. J Nanobiotechnology 2023; 21:237. [PMID: 37488582 PMCID: PMC10364421 DOI: 10.1186/s12951-023-01987-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/07/2023] [Indexed: 07/26/2023] Open
Abstract
The stimuli-responsive nanofibers prepared by electrospinning have become an ideal stimuli-responsive material due to their large specific surface area and porosity, which can respond extremely quickly to external environmental incitement. As an intelligent drug delivery platform, stimuli-responsive nanofibers can efficiently load drugs and then be stimulated by specific conditions (light, temperature, magnetic field, ultrasound, pH or ROS, etc.) to achieve slow, on-demand or targeted release, showing great potential in areas such as drug delivery, tumor therapy, wound dressing, and tissue engineering. Therefore, this paper reviews the recent trends of stimuli-responsive electrospun nanofibers as intelligent drug delivery platforms in the field of biomedicine.
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Affiliation(s)
- Kai Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan provincial key laboratory of R&D on tropical herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China.
| | - Yonghui Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan provincial key laboratory of R&D on tropical herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan provincial key laboratory of R&D on tropical herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan provincial key laboratory of R&D on tropical herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
| | - Yingshuo Liu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan provincial key laboratory of R&D on tropical herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Guoxin Tan
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmacy, Hainan University, Haikou, 570228, People's Republic of China.
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Targeting Tumor Microenvironment by Metal Peroxide Nanoparticles in Cancer Therapy. Bioinorg Chem Appl 2022; 2022:5041399. [PMID: 36568636 PMCID: PMC9788889 DOI: 10.1155/2022/5041399] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
Solid tumors have a unique tumor microenvironment (TME), which includes hypoxia, low acidity, and high hydrogen peroxide and glutathione (GSH) levels, among others. These unique factors, which offer favourable microenvironments and nourishment for tumor development and spread, also serve as a gateway for specific and successful cancer therapies. A good example is metal peroxide structures which have been synthesized and utilized to enhance oxygen supply and they have shown great promise in the alleviation of hypoxia. In a hypoxic environment, certain oxygen-dependent treatments such as photodynamic therapy and radiotherapy fail to respond and therefore modulating the hypoxic tumor microenvironment has been found to enhance the antitumor impact of certain drugs. Under acidic environments, the hydrogen peroxide produced by the reaction of metal peroxides with water not only induces oxidative stress but also produces additional oxygen. This is achieved since hydrogen peroxide acts as a reactive substrate for molecules such as catalyse enzymes, alleviating tumor hypoxia observed in the tumor microenvironment. Metal ions released in the process can also offer distinct bioactivity in their own right. Metal peroxides used in anticancer therapy are a rapidly evolving field, and there is good evidence that they are a good option for regulating the tumor microenvironment in cancer therapy. In this regard, the synthesis and mechanisms behind the successful application of metal peroxides to specifically target the tumor microenvironment are highlighted in this review. Various characteristics of TME such as angiogenesis, inflammation, hypoxia, acidity levels, and metal ion homeostasis are addressed in this regard, together with certain forms of synergistic combination treatments.
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