High speed multiplex SRS microscopy for biomedical studies DOI
Zhi Li, Yajuan Li, Jorge Villazon

et al.

Published: Oct. 5, 2023

High-speed multiplex Stimulated Raman Scattering (SRS) microscopy has emerged as a powerful imaging technique in the field of biomedical research. This cutting-edge technology combines benefits traditional spectroscopy with high speed and resolution microscopy, enabling real-time, label-free, non-invasive visualization biological samples at molecular level. In this article, we delve into principles, advantages, applications high-speed SRS context studies.

Language: Английский

Microglial lipid droplet accumulation in tauopathy brain is regulated by neuronal AMPK DOI
Yajuan Li, Daniel Muñoz-Mayorga,

Yuhang Nie

et al.

Cell Metabolism, Journal Year: 2024, Volume and Issue: 36(6), P. 1351 - 1370.e8

Published: April 23, 2024

Language: Английский

Citations

36

Multimodal imaging of metabolic activities for distinguishing subtypes of breast cancer DOI Creative Commons
Zhi Li,

Chloe Nguyen,

Hongje Jang

et al.

Biomedical Optics Express, Journal Year: 2023, Volume and Issue: 14(11), P. 5764 - 5764

Published: Sept. 28, 2023

Triple negative breast cancer (TNBC) is a highly aggressive form of cancer. Detecting TNBC early crucial for improving disease prognosis and optimizing treatment. Unfortunately, conventional imaging techniques fall short in providing comprehensive differentiation subtypes due to their limited sensitivity inability capture subcellular details. In this study, we present multimodal platform that integrates heavy water (D 2 O)-probed stimulated Raman scattering (DO-SRS), two-photon fluorescence (TPF), second harmonic generation (SHG) imaging. This allows us directly visualize quantify the metabolic activities at level. By utilizing DO-SRS imaging, were able identify distinct levels de novo lipogenesis, protein synthesis, cytochrome c heterogeneity, lipid unsaturation rates various subtype tissues. Simultaneously, TPF provided spatial distribution mapping NAD[P]H flavin signals tissues, revealing high redox ratio significant turnover rate BL2 (HCC1806) samples. Furthermore, SHG enabled observe diverse orientations collagen fibers with higher anisotropy tissue boundary compared center. Our offers sensitive approach characterizing not only TNBC, but also other cancers.

Language: Английский

Citations

10

Optical imaging unveiling metabolic dynamics in cells and organisms during aging and diseases DOI Creative Commons
Lingyan Shi, Jorge Villazon

Med-X, Journal Year: 2025, Volume and Issue: 3(1)

Published: Feb. 20, 2025

Language: Английский

Citations

0

Illuminating life processes by vibrational probes DOI
Naixin Qian, Zhilun Zhao, Elsy El Khoury

et al.

Nature Methods, Journal Year: 2025, Volume and Issue: 22(5), P. 928 - 944

Published: May 1, 2025

Language: Английский

Citations

0

Super‐Resolution Stimulated Raman Scattering Microscopy with Graphical User Interface–Supported A‐PoD DOI Creative Commons

Hongje Jang,

Yajuan Li, Shuang Wu

et al.

Current Protocols, Journal Year: 2024, Volume and Issue: 4(1)

Published: Jan. 1, 2024

Abstract Raman microscopy is a vibrational imaging technology that can detect molecular chemical bond signals. Since this signal originated from almost every mode of molecules with different energy levels, it provides spatiotemporal distribution various in living organisms without the need for any labeling. The limitations low strength have been effectively addressed by incorporating stimulated emission process, leading to development scattering (SRS) microscopy. Furthermore, issue spatial resolution has resolved through application computational techniques, specifically image deconvolution. In article, we present comprehensive guide super‐resolution SRS using an Adam‐based pointillism deconvolution (A‐PoD) algorithm, complemented user‐friendly graphical user interface (GUI). We delve into crucial parameters and conditions necessary achieving super‐resolved images imaging. Additionally, provide step‐by‐step walkthrough preprocessing steps use GUI‐supported A‐PoD. This complete package offers platform microscopy, enhancing versatility applicability advanced technique reveal nanoscopic multimolecular nature. © 2024 Authors. Current Protocols published Wiley Periodicals LLC. Basic Protocol : Super‐resolution interface–supported A‐PoD Support Deuterium labeling on cells heavy water metabolic

Language: Английский

Citations

3

New insights into lipid and fatty acid metabolism from Raman spectroscopy. DOI Creative Commons

Justin C. Greig,

William J. Tipping, Duncan Graham

et al.

The Analyst, Journal Year: 2024, Volume and Issue: 149(19), P. 4789 - 4810

Published: Jan. 1, 2024

One of the challenges facing biology is to understand metabolic events at a single cellular level. While approaches examine dynamics protein distribution or report on spatiotemporal location signalling molecules are well-established, tools for dissection metabolism in living cells less common. Advances Raman spectroscopy, such as stimulated scattering (SRS), beginning offer new insights into range experimental systems, including model organisms and clinical samples, across disciplines. Despite power imaging, it remains relatively under-used technique approach biological problems, part because specialised nature analysis. To raise profile this method, here we consider some key studies which illustrate how spectroscopy has revealed fatty acid lipid systems. The powerful non-invasive offers suite biomolecular scientists address within informs underpins function. We potential applications, discuss recent advances, direction travel research area.

Language: Английский

Citations

3

Highly Multiplexed Tissue Imaging in Precision Oncology and Translational Cancer Research DOI Creative Commons
Alina Bollhagen, Bernd Bodenmiller

Cancer Discovery, Journal Year: 2024, Volume and Issue: 14(11), P. 2071 - 2088

Published: Nov. 1, 2024

Abstract Precision oncology tailors treatment strategies to a patient’s molecular and health data. Despite the essential clinical value of current diagnostic methods, hematoxylin eosin morphology, immunohistochemistry, gene panel sequencing offer an incomplete characterization. In contrast, highly multiplexed tissue imaging allows spatial analysis dozens markers at single-cell resolution enabling complex tumor ecosystems; thereby it has potential advance our understanding cancer biology supports drug development, biomarker discovery, patient stratification. We describe available modalities, discuss their advantages disadvantages for use, paths implement these into practice. Significance: This review provides guidance on how high-resolution, samples can be integrated workflows. It systematically compares existing emerging technologies outlines applications in field precision oncology, bridging ever-evolving landscape research with practical implementation possibilities routine

Language: Английский

Citations

3

Nonlinear Optical Imaging Modalities in Biomedicine DOI
Jorge Villazon, Hongje Jang, Lingyan Shi

et al.

GEN Biotechnology, Journal Year: 2024, Volume and Issue: 3(5), P. 290 - 298

Published: Oct. 1, 2024

Language: Английский

Citations

2

Pre-processing for precise super-resolution multimodal image analysis DOI Open Access

Hongje Jang,

Zhi Li,

Fenja Bahrenburg

et al.

Published: March 12, 2024

We have developed a novel methodology to capture images of various biomolecules at resolution surpassing the traditional diffraction limit optical microscopy. By harnessing multimodal imaging platform that combines stimulated Raman scattering (SRS), multiphoton fluorescence (MPF), and second harmonic generation (SHG), together with sophisticated image deconvolution algorithms, we successfully generated super-resolution reveal details biomolecular metabolism. These enable us explore intricate associations between metabolic activities spatial distribution metabolites within breast cancer tissues. To enhance accuracy this measurement technique, in study, designed pre-processing workflow incorporates both denoising drift correction processes. Our cutting-edge, nonlinear approach, when applied context new workflow, holds significant promise for advancing early detection cancer, prognostication, evaluation therapeutic outcomes, deepening our mechanistic understanding diseases.

Language: Английский

Citations

0

Advanced ratiometric image analysis for super-resolution hyperspectral SRS microscopy DOI
Hongje Jang, Shuang Wu, Lingyan Shi

et al.

Published: March 13, 2024

We have developed a novel stimulated Raman scattering (SRS) imaging platform to visualize various biomolecules at resolution beyond the traditional diffraction limit of optical microscopy. Applying super-resolution deconvolution algorithm, Adam based Pointillism Deconvolution (A-PoD), hyperspectral SRS images, we can measure nanoscopic distributions these molecules in cells. In this study, showcase application A-PoD for images lipids, protein, unsaturated lipid, and saturated lipids rat olfactory bulbs under hypoxia. The analysis result shows distinct lipid glomeruli hypoxia control rats. This approach capability revealing molecular composition metabolic activities. When applied context with new workflow, holds significant promise advancing early detection understanding diseases.

Language: Английский

Citations

0