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Kim ES, Lee JM, Kwak JY, Lee HW, Lee IJ, Kim HM. Multicolor Two-Photon Microscopy Imaging of Lipid Droplets and Liver Capsule Macrophages In Vivo. Anal Chem 2024; 96:8467-8473. [PMID: 38723271 DOI: 10.1021/acs.analchem.4c00228] [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: 05/29/2024]
Abstract
Lipid droplets (LDs) store energy and supply fatty acids and cholesterol. LDs are a hallmark of chronic nonalcoholic fatty liver disease (NAFLD). Recently, studies have focused on the role of hepatic macrophages in NAFLD. Green fluorescent protein (GFP) is used for labeling the characteristic targets in bioimaging analysis. Cx3cr1-GFP mice are widely used in studying the liver macrophages such as the NAFLD model. Here, we have developed a tool for two-photon microscopic observation to study the interactions between LDs labeled with LD2 and liver capsule macrophages labeled with GFP in vivo. LD2, a small-molecule two-photon excitation fluorescent probe for LDs, exhibits deep-red (700 nm) fluorescence upon excitation at 880 nm, high cell staining ability and photostability, and low cytotoxicity. This probe can clearly observe LDs through two-photon microscopy (TPM) and enables the simultaneous imaging of GFP+ liver capsule macrophages (LCMs) in vivo in the liver capsule of Cx3cr1-GFP mice. In the NAFLD mouse model, Cx3cr1+ LCMs and LDs increased with the progress of fatty liver disease, and spatiotemporal changes in LCMs were observed through intravital 3D TPM images. LD2 will aid in studying the interactions and immunological roles of hepatic macrophages and LDs to better understand NAFLD.
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Affiliation(s)
- Eun Seo Kim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
| | - Jeong-Mi Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
| | - Jong-Young Kwak
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
- Department of Pharmacology, School of Medicine, Ajou University, Suwon 16499, Korea
| | - Hyo Won Lee
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
| | - In-Jeong Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
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Nikolaev VV, Kistenev YV, Kröger M, Zuhayri H, Darvin ME. Review of optical methods for noninvasive imaging of skin fibroblasts-From in vitro to ex vivo and in vivo visualization. JOURNAL OF BIOPHOTONICS 2024; 17:e202300223. [PMID: 38018868 DOI: 10.1002/jbio.202300223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/30/2023]
Abstract
Fibroblasts are among the most common cell types in the stroma responsible for creating and maintaining the structural organization of the extracellular matrix in the dermis, skin regeneration, and a range of immune responses. Until now, the processes of fibroblast adaptation and functioning in a varying environment have not been fully understood. Modern laser microscopes are capable of studying fibroblasts in vitro and ex vivo. One-photon- and two-photon-excited fluorescence microscopy, Raman spectroscopy/microspectroscopy are well-suited noninvasive optical methods for fibroblast imaging in vitro and ex vivo. In vivo staining-free fibroblast imaging is not still implemented. The exception is fibroblast imaging in tattooed skin. Although in vivo noninvasive staining-free imaging of fibroblasts in the skin has not yet been implemented, it is expected in the future. This review summarizes the state-of-the-art in fibroblast visualization using optical methods and discusses the advantages, limitations, and prospects for future noninvasive imaging.
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Affiliation(s)
- Viktor V Nikolaev
- Tomsk State University, Laboratory of Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Yury V Kistenev
- Tomsk State University, Laboratory of Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Marius Kröger
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venerology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Berlin, Germany
| | - Hala Zuhayri
- Tomsk State University, Laboratory of Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Maxim E Darvin
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venerology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Berlin, Germany
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Lu Y, Sun N, Wu P, Zhou G, Peng L, Tang J. The application of infrared thermography technology in flap: A perspective from bibliometric and visual analysis. Int Wound J 2023; 20:4308-4327. [PMID: 37551726 PMCID: PMC10681462 DOI: 10.1111/iwj.14333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 08/09/2023] Open
Abstract
The application of infrared thermography technology (IRT) in flap has become a major focus of research, as it provides a non-invasive, real-time, and quantitative approach for monitoring flap perfusion. In this regard, we conducted a comprehensive visualization and scientometric analysis to systematically summarize and discuss the current state of research in this field. We systematically reviewed publications on the application of IRT in flap procedures from 1999 to 2022, using the Web of Science Core Collection (WoSCC). Through scientometric analysis, we examined annual trends, affiliations, countries, journals, authors, and their relationships, providing insights into current hotspots and future developments in this area. We analysed 522 English studies and found a steady increase in annual publications. The United States and Germany had the highest publication rates, with Beth Israel Deaconess Medical Center and Shanghai Jiaotong University being leading institutions. Notably, Lee BT and Alex Keller emerged as influential authors in this field. Compared to existing techniques, infrared-based technology offers significant advantages for non-invasive monitoring of flap perfusion, including simplicity of operation and objective results. Future trends should focus on interdisciplinary collaborations to develop new infrared devices and achieve intelligent image processing, enabling broader application in various clinical scenarios. This bibliometric study summarizes the progress and landscape of research on 'the Application of infrared thermography technology in flap' over the past two decades, providing valuable insights and serving as a reliable reference to drive further advancements and spark researchers' interest in this field.
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Affiliation(s)
- Yilei Lu
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center of Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Nianzhe Sun
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center of Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Panfeng Wu
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center of Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Guoling Zhou
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- Xiangya Nursing SchoolCentral South UniversityChangshaChina
| | - Lingli Peng
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center of Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
- Xiangya Nursing SchoolCentral South UniversityChangshaChina
- Teaching and Research Section of Clinical Nursing, Xiangya HospitalCentral South UniversityChangshaChina
| | - Juyu Tang
- Department of Orthopedics, Hand & MicrosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center of Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
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Biswas S, Baruah M, Shil A, Sarkar S, Ali M, Samanta A, Bhuniya S. Polarity-Driven Two-Photon Fluorescent Probe for Monitoring the Perturbation in Lipid Droplet Levels during Mitochondrial Dysfunction and Acute Pancreatitis. ACS Sens 2023; 8:3793-3803. [PMID: 37815484 DOI: 10.1021/acssensors.3c01245] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Lipid droplets (LDs) act as an energy reservoir in cancer cells; on the other hand, mitochondria are hyperactive to fulfill the energy demand to accelerate cell proliferation. We are interested in unfolding the relationship between the cellular energy reservoir and energy producer through fluorescence labeling. Thus, a dual organelle-targeted fluorescent probe MLD-1 has been rationally developed. It visualized the crosstalk between mitochondrial dysfunction and the fluctuation of LDs in live cells. Its two-photon ability allowed us to acquire deep tissue images. For the first time, we have shown that the probe has the ability to track the accumulation of LDs in different mouse organs during pancreatic inflammation. MLD-1, being a selectively polarity-driven, chemo- and photostable LD probe, may offer great possibilities for studying LD-associated biology in due course.
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Affiliation(s)
- Shayeri Biswas
- Centre for Interdisciplinary Sciences, JIS Institute of Advanced Studies and Research, JIS University, Arch Waterfront, GP Block, Sector V, Bidhannagar, Kolkata 700091, India
| | - Mousumi Baruah
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, Shiv Nadar Institution of Eminence, Delhi NCR, NH 91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Anushree Shil
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk 37673, Republic of Korea
| | - Sourav Sarkar
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk 37673, Republic of Korea
| | - Mudassar Ali
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, Shiv Nadar Institution of Eminence, Delhi NCR, NH 91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Animesh Samanta
- Molecular Sensors and Therapeutics Research Laboratory, Department of Chemistry, Shiv Nadar Institution of Eminence, Delhi NCR, NH 91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Sankarprasad Bhuniya
- Centre for Interdisciplinary Sciences, JIS Institute of Advanced Studies and Research, JIS University, Arch Waterfront, GP Block, Sector V, Bidhannagar, Kolkata 700091, India
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Sha J, Liu W, Zheng X, Guo Y, Li X, Ren H, Qin Y, Wu J, Zhang W, Lee CS, Wang P. Polarity-Sensitive Probe for Two-Photon Fluorescence Lifetime Imaging of Lipid Droplets In Vitro and In Vivo. Anal Chem 2023; 95:15350-15356. [PMID: 37784219 DOI: 10.1021/acs.analchem.3c03047] [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: 10/04/2023]
Abstract
Lipid droplets (LDs) are crucial organelles used to store lipids and participate in lipid metabolism in cells. The abnormal aggregation and polarity change of LDs are associated with the occurrence of diseases, such as steatosis. Herein, the polarity-sensitive probe TBPCPP with a donor-acceptor-π-acceptor (D-A-π-A) structure was designed and synthesized. The TBPCPP has a large Stokes shift (∼220 nm), excellent photostability, high LD targeting, and considerable two-photon absorption (TPA) cross-section (∼226 GM), enabling deep two-photon imaging (∼360 μm). In addition, the fluorescence lifetime of TBPCPP decreases linearly with increasing solvent polarity. Therefore, with the assistance of two-photon fluorescence lifetime imaging microscopy (TP-FLIM), TBPCPP has successfully achieved not only the visualization of polarity changes caused by LD accumulation in HepG-2 cells but also lipid-specific imaging and visualization of different polarities in lipid-rich regions in zebrafish for the first time. Furthermore, TP-FLIM revealed that the polarity gradually decreases during steatosis in HepG-2 cells, which provided new insights into the diagnosis of steatosis.
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Affiliation(s)
- Jie Sha
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiuli Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Yimin Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xuewei Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Haohui Ren
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Yuanyuan Qin
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P.R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P.R. China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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