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Steves MA, He C, Xu K. Single-Molecule Spectroscopy and Super-Resolution Mapping of Physicochemical Parameters in Living Cells. Annu Rev Phys Chem 2024; 75:163-183. [PMID: 38360526 DOI: 10.1146/annurev-physchem-070623-034225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
By superlocalizing the positions of millions of single molecules over many camera frames, a class of super-resolution fluorescence microscopy methods known as single-molecule localization microscopy (SMLM) has revolutionized how we understand subcellular structures over the past decade. In this review, we highlight emerging studies that transcend the outstanding structural (shape) information offered by SMLM to extract and map physicochemical parameters in living mammalian cells at single-molecule and super-resolution levels. By encoding/decoding high-dimensional information-such as emission and excitation spectra, motion, polarization, fluorescence lifetime, and beyond-for every molecule, and mass accumulating these measurements for millions of molecules, such multidimensional and multifunctional super-resolution approaches open new windows into intracellular architectures and dynamics, as well as their underlying biophysical rules, far beyond the diffraction limit.
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Affiliation(s)
- Megan A Steves
- Department of Chemistry, University of California, Berkeley, California, USA;
| | - Changdong He
- Department of Chemistry, University of California, Berkeley, California, USA;
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, California, USA;
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Pivovarenko VG, Klymchenko AS. Fluorescent Probes Based on Charge and Proton Transfer for Probing Biomolecular Environment. CHEM REC 2024; 24:e202300321. [PMID: 38158338 DOI: 10.1002/tcr.202300321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Fluorescent probes for sensing fundamental properties of biomolecular environment, such as polarity and hydration, help to study assembly of lipids into biomembranes, sensing interactions of biomolecules and imaging physiological state of the cells. Here, we summarize major efforts in the development of probes based on two photophysical mechanisms: (i) an excited-state intramolecular charge transfer (ICT), which is represented by fluorescent solvatochromic dyes that shift their emission band maximum as a function of environment polarity and hydration; (ii) excited-state intramolecular proton transfer (ESIPT), with particular focus on 5-membered cyclic systems, represented by 3-hydroxyflavones, because they exhibit dual emission sensitive to the environment. For both ICT and ESIPT dyes, the design of the probes and their biological applications are summarized. Thus, dyes bearing amphiphilic anchors target lipid membranes and report their lipid organization, while targeting ligands direct them to specific organelles for sensing their local environment. The labels, amino acid and nucleic acid analogues inserted into biomolecules enable monitoring their interactions with membranes, proteins and nucleic acids. While ICT probes are relatively simple and robust environment-sensitive probes, ESIPT probes feature high information content due their dual emission. They constitute a powerful toolbox for addressing multitude of biological questions.
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Affiliation(s)
- Vasyl G Pivovarenko
- Department of Chemistry, Kyiv National Taras Shevchenko University, 01033, Kyiv, Ukraine
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, ITI SysChem, Université de Strasbourg, 67401, Illkirch, France
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Cheng Y, Qu Z, Jiang Q, Xu T, Zheng H, Ye P, He M, Tong Y, Ma Y, Bao A. Functional Materials for Subcellular Targeting Strategies in Cancer Therapy: Progress and Prospects. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305095. [PMID: 37665594 DOI: 10.1002/adma.202305095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/26/2023] [Indexed: 09/05/2023]
Abstract
Neoadjuvant and adjuvant therapies have made significant progress in cancer treatment. However, tumor adjuvant therapy still faces challenges due to the intrinsic heterogeneity of cancer, genomic instability, and the formation of an immunosuppressive tumor microenvironment. Functional materials possess unique biological properties such as long circulation times, tumor-specific targeting, and immunomodulation. The combination of functional materials with natural substances and nanotechnology has led to the development of smart biomaterials with multiple functions, high biocompatibilities, and negligible immunogenicities, which can be used for precise cancer treatment. Recently, subcellular structure-targeting functional materials have received particular attention in various biomedical applications including the diagnosis, sensing, and imaging of tumors and drug delivery. Subcellular organelle-targeting materials can precisely accumulate therapeutic agents in organelles, considerably reduce the threshold dosages of therapeutic agents, and minimize drug-related side effects. This review provides a systematic and comprehensive overview of the research progress in subcellular organelle-targeted cancer therapy based on functional nanomaterials. Moreover, it explains the challenges and prospects of subcellular organelle-targeting functional materials in precision oncology. The review will serve as an excellent cutting-edge guide for researchers in the field of subcellular organelle-targeted cancer therapy.
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Affiliation(s)
- Yanxiang Cheng
- Department of Gynecology, Renmin Hospital, Wuhan University, No.238 Jiefang Road, Wuchang, Wuhan, 430060, P. R. China
| | - Zhen Qu
- Department of Blood Transfusion Research, Wuhan Blood Center (WHBC), HUST-WHBC United Hematology Optical Imaging Center, No.8 Baofeng 1st Road, Wuhan, Hubei, 430030, P. R. China
| | - Qian Jiang
- Department of Blood Transfusion Research, Wuhan Blood Center (WHBC), HUST-WHBC United Hematology Optical Imaging Center, No.8 Baofeng 1st Road, Wuhan, Hubei, 430030, P. R. China
| | - Tingting Xu
- Department of Clinical Laboratory, Wuhan Blood Center (WHBC), No.8 Baofeng 1st Road, Wuhan, Hubei, 430030, P. R. China
| | - Hongyun Zheng
- Department of Clinical Laboratory, Renmin Hospital, Wuhan University, No.238 Jiefang Road, Wuchang, Wuhan, 430060, P. R. China
| | - Peng Ye
- Department of Pharmacy, Renmin Hospital, Wuhan University, No.238 Jiefang Road, Wuchang, Wuhan, 430060, P. R. China
| | - Mingdi He
- Department of Blood Transfusion Research, Wuhan Blood Center (WHBC), HUST-WHBC United Hematology Optical Imaging Center, No.8 Baofeng 1st Road, Wuhan, Hubei, 430030, P. R. China
| | - Yongqing Tong
- Department of Clinical Laboratory, Renmin Hospital, Wuhan University, No.238 Jiefang Road, Wuchang, Wuhan, 430060, P. R. China
| | - Yan Ma
- Department of Blood Transfusion Research, Wuhan Blood Center (WHBC), HUST-WHBC United Hematology Optical Imaging Center, No.8 Baofeng 1st Road, Wuhan, Hubei, 430030, P. R. China
| | - Anyu Bao
- Department of Clinical Laboratory, Renmin Hospital, Wuhan University, No.238 Jiefang Road, Wuchang, Wuhan, 430060, P. R. China
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