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Kesarwani R, Pal N, Bhabak KP. Stimuli-responsive biotin-anchored prodrug for the targeted delivery of anti-cancer agent NBDHEX with turn-on NIR fluorescence. Chem Commun (Camb) 2024; 60:3397-3400. [PMID: 38404238 DOI: 10.1039/d4cc00210e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Biothiol-activatable prodrug RK-296 was designed for the delivery of potent anti-cancer agent NBDHEX with concomitant turn-on near infrared (NIR) fluorescence. NBDHEX exhibits anti-cancer activity by selectively inhibiting glutathione-S-transferase pi (GSTP1), which is overexpressed in cancer cells and responsible for the inactivation of chemotherapeutic drugs. The sustained release of NBDHEX from the prodrug would be useful for ameliorating the off-target side-effects of NBDHEX.
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Affiliation(s)
- Rahul Kesarwani
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Nikita Pal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Krishna P Bhabak
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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2
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Gupta A, Singh N, Gautam A, Dhakar N, Kumar S, Sasmal PK. Visible and NIR light photoactivatable o-hydroxycinnamate system for efficient drug release with fluorescence monitoring. RSC Med Chem 2023; 14:1088-1100. [PMID: 37360392 PMCID: PMC10285768 DOI: 10.1039/d2md00438k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/28/2023] [Indexed: 10/28/2023] Open
Abstract
Photoactivatable protecting groups (PPGs) have become powerful materials for controlling the activity of biologically important molecules in the biomedical field. However, designing PPGs that can be efficiently activated by biologically benign visible and NIR light with fluorescence monitoring is still a great challenge. Herein, we report o-hydroxycinnamate-based PPGs that can be activated by both visible (one-photon) and NIR (two-photon) light for controlled drug release with real-time monitoring. Thus, a photoremovable 7-diethylamino o-hydroxycinnamate group is covalently attached to an anticancer drug, gemcitabine, to establish a photoactivatable prodrug system. Upon excitation by visible (400-700 nm) or NIR (800 nm) light, the prodrug efficiently releases drug which is quantified by monitoring the formation of a strongly fluorescent coumarin reporter. The prodrug is taken up by the cancer cells and interestingly accumulates within mitochondria as determined by FACS and fluorescence microscopy imaging. Further, the prodrug demonstrates photo-triggered, dose-dependent, and temporally controlled cell death upon irradiation with both visible and NIR light. This photoactivatable system could be useful and adapted in the future for the development of advanced therapies in biomedicine.
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Affiliation(s)
- Ajay Gupta
- School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | - Neelu Singh
- School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | - Aryan Gautam
- School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | - Neetesh Dhakar
- Department of Physics, Indian Institute of Technology Delhi New Delhi 110016 India
| | - Sunil Kumar
- Department of Physics, Indian Institute of Technology Delhi New Delhi 110016 India
| | - Pijus K Sasmal
- School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
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López-Corrales M, Rovira A, Gandioso A, Nonell S, Bosch M, Marchán V. Mitochondria-Targeted COUPY Photocages: Synthesis and Visible-Light Photoactivation in Living Cells. J Org Chem 2023. [PMID: 37209100 DOI: 10.1021/acs.joc.3c00387] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Releasing bioactive molecules in specific subcellular locations from the corresponding caged precursors offers great potential in photopharmacology, especially when using biologically compatible visible light. By taking advantage of the intrinsic preference of COUPY coumarins for mitochondria and their long wavelength absorption in the visible region, we have synthesized and fully characterized a series of COUPY-caged model compounds to investigate how the structure of the coumarin caging group affects the rate and efficiency of the photolysis process. Uncaging studies using yellow (560 nm) and red light (620 nm) in phosphate-buffered saline medium have demonstrated that the incorporation of a methyl group in a position adjacent to the photocleavable bond is particularly important to fine-tune the photochemical properties of the caging group. Additionally, the use of a COUPY-caged version of the protonophore 2,4-dinitrophenol allowed us to confirm by confocal microscopy that photoactivation can occur within mitochondria of living HeLa cells upon irradiation with low doses of yellow light. The new photolabile protecting groups presented here complement the photochemical toolbox in therapeutic applications since they will facilitate the delivery of photocages of biologically active compounds into mitochondria.
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Affiliation(s)
- Marta López-Corrales
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Martí i Franqués 1-11, E-08028 Barcelona, Spain
| | - Anna Rovira
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Martí i Franqués 1-11, E-08028 Barcelona, Spain
| | - Albert Gandioso
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Martí i Franqués 1-11, E-08028 Barcelona, Spain
| | - Santi Nonell
- Institut Químic de Sarrià, Universitat Ramon Llull, Vía Augusta 390, E-08017 Barcelona, Spain
| | - Manel Bosch
- Unitat de Microscòpia Òptica Avançada, Centres Científics i Tecnològics (CCiTUB), Universitat de Barcelona (UB), Av. Diagonal 643, E-08028 Barcelona, Spain
| | - Vicente Marchán
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Martí i Franqués 1-11, E-08028 Barcelona, Spain
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Kumari G, Gupta A, Sah RK, Gautam A, Saini M, Gupta A, Kushawaha AK, Singh S, Sasmal PK. Development of Mitochondria Targeting AIE-Active Cyclometalated Iridium Complexes as Potent Antimalarial Agents. Adv Healthc Mater 2022; 12:e2202411. [PMID: 36515128 DOI: 10.1002/adhm.202202411] [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: 09/20/2022] [Revised: 12/10/2022] [Indexed: 12/15/2022]
Abstract
The emergence of resistance to conventional antimalarial treatments remains a major cause for concern. New drugs that target the distinct development stages of Plasmodium parasites are required to address this risk. Herein, water-soluble aggregation-induced emission active cyclometalated iridium(III) polypyridyl complexes (Ir1-Ir12) are developed for the elimination of malaria parasites. Remarkably, these complexes show potent antimalarial activity in low nanomolar range against 3D7 (chloroquine and artemisinin sensitive strain), RKL9 (chloroquine resistant strain), and R539T (artemisinin resistant strains) strains of Plasmodium falciparum with faster killing rate of malaria parasites. Concomitantly, these complexes exhibit efficient in vivo antimalarial activity against both the asexual and gametocyte stages of Plasmodium berghei malaria parasite, suggesting promising transmission-blocking potential. The complexes tend to localize into mitochondria of P. falciparum determined by image and cell-based assay. The mechanistic studies reveal that these complexes exert their antimalarial activity by increasing reactive oxygen species levels and disrupting its mitochondrial membrane potential. Furthermore, the mitochondrial-dependent antimalarial activity of these complexes is confirmed in yeast model. Thus, this study for the first time highlights the potential role of targeting P. falciparum mitochondria by iridium complexes in discovering and developing the next-generation antimalarial agents for treating multidrug resistant malaria parasites.
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Affiliation(s)
- Geeta Kumari
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ajay Gupta
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Raj Kumar Sah
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Aryan Gautam
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Monika Saini
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India.,Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Budhha Nagar, Uttar Pradesh, 201314, India
| | - Aashima Gupta
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Akhilesh K Kushawaha
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pijus K Sasmal
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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Zeng K, Han L, Chen Y. Endogenous Proteins Modulation in Live Cells with Small Molecules and Light. Chembiochem 2022; 23:e202200244. [PMID: 35822393 DOI: 10.1002/cbic.202200244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/23/2022] [Indexed: 11/05/2022]
Abstract
The protein modulation by light illumination enables the biological role investigation in high spatiotemporal precision. Compared to genetic methods, the small molecules approach is uniquely suited for modulating endogenous proteins. The endogenous protein modulation in live cells with small molecules and light has recently advanced on three distinctive frontiers: i) the infrared-light-induced or localized decaging of small molecules by photolysis, ii) the visible-light-induced photocatalytic releasing of small molecules, and iii) the small-molecule-ligand-directed caging for photo-modulation of proteins. Together, these methods provide powerful chemical biology tool kits for spatiotemporal modulation of endogenous proteins with potential therapeutic applications. This Concept aims to inspire organic chemists and chemical biologists to delve into this burgeoning endogenous protein modulation field for new biological discoveries.
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Affiliation(s)
- Kaixing Zeng
- Shanghai Institute Of Organic Chemistry State Key Laboratory of Bioorganic Chemistry, BNPC, CHINA
| | - Lili Han
- Shanghai Institute Of Organic Chemistry State Key Laboratory of Bioorganic Chemistry, BNPC, CHINA
| | - Yiyun Chen
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, BNPC, 345 Lingling Road, 200032, Shanghai, CHINA
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Gupta A, Gautam A, Sasmal PK. Photoactivatable o-Hydroxycinnamic Platforms for Bioimaging and Therapeutic Release. J Med Chem 2022; 65:5274-5287. [PMID: 35344364 DOI: 10.1021/acs.jmedchem.2c00022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photoactivatable or photoremovable protecting groups (PPGs) have become a powerful material and gained enormous interest in the field of biomedical applications. PPGs have been utilized for noninvasive, on-demand, spatio-temporal controlled release of biological effectors by irradiation with light to induce biochemical function. Over the past few years, o-hydroxycinnamate (oHC)-based PPGs have received considerable attention for the release of molecules of interest by either UV (one-photon) or near-IR (two-photon) irradiation. In this miniperspective, we have summarized the development of oHC PPGs for bioimaging and the controlled release of therapeutics, bioactive volatiles and other payloads with real-time monitoring. In addition, several future perspectives of oHC systems have been highlighted at the end of this miniperspective.
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Affiliation(s)
- Ajay Gupta
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Aryan Gautam
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pijus K Sasmal
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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Gavriel A, Sambrook M, Russell AT, Hayes W. Recent advances in self-immolative linkers and their applications in polymeric reporting systems. Polym Chem 2022. [DOI: 10.1039/d2py00414c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interest in self-immolative chemistry has grown over the past decade with more research groups harnessing the versatility to control the release of a compound from a larger chemical entity, given...
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