Immunohistochemistry (IHC) combined with fluorescence microscopy provides an important and widely used tool for researchers and pathologists to image multiple biomarkers in tissue specimens. However, multiplex IHC using standard fluorescence microscopy is generally limited to 3-5 different biomarkers, with hyperspectral or multispectral methods limited to 8. We report the development of a new technology based on novel photocleavable mass-tags (PC-MTs) for facile antibody labeling, which enables highly multiplexed IHC based on MALDI mass spectrometric imaging (MALDI-IHC). This approach significantly exceeds the multiplexity of both fluorescence- and previous cleavable mass-tag-based methods. Up to 12-plex MALDI-IHC was demonstrated on mouse brain, human tonsil, and breast cancer tissues specimens, reflecting the known molecular composition, anatomy, and pathology of the targeted biomarkers. Novel dual-labeled fluorescent PC-MT antibodies and label-free small-molecule mass spectrometric imaging greatly extend the capability of this new approach. MALDI-IHC shows promise for use in the fields of tissue pathology, tissue diagnostics, therapeutics, and precision medicine.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8033562 | PMC |
| http://dx.doi.org/10.1021/jasms.0c00473 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characterization of Strains from Tonsillopharyngitis and Scarlet Fever Resurgence, 2023-FIRST Detection of M1 in Bulgaria.
Microorganisms
January 2025
Medical Faculty, Sofia University "St. Kliment Ohridski", 1407 Sofia, Bulgaria.
Recently a resurgence of has arisen, with concerns around the highly virulent M1 lineage. Our aim was to characterize , the immune responses it causes, and to determine the presence of the M1 lineage in Sofia, Bulgaria. In our study, the infections were confirmed by culture testing or rapid antigen test.
View Article and Find Full Text PDFEvidence of Inflammatory Network Disruption in Chronic Venous Disease: An Analysis of Circulating Cytokines and Chemokines.
Biomedicines
January 2025
Department of Medicine and Medical Specialities (CIBEREHD), Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain.
Chronic venous disease (CVD) comprises a set of vascular disorders that affect the venous system with important local and systemic repercussions. A growing body of evidence displays the relationship between suffering from CVD and a marked deregulation of the immune inflammatory system. In this sense, the previous literature has reported some significant changes in the level of various circulating inflammatory parameters in these patients.
View Article and Find Full Text PDFRecent Advances of Processing and Detection Techniques on Crustacean Allergens: A Review.
Foods
January 2025
College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
Crustaceans are delicious and highly nutritional food. However, crustaceans are one of the main food allergens, causing severe public health issues. Thus, it is important to increase the knowledge on crustacean allergens and protect the health of sensitized individuals.
View Article and Find Full Text PDFEnhancing Functional Breast Imaging: A sCMOS Camera-Based Lock-in Implementation for Dynamic Tomography.
J Biophotonics
January 2025
The College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, China.
Diffuse optical tomography (DOT) enables the in vivo quantification of tissue chromophores, specifically the discernment of oxy- and deoxy-hemoglobin (HbO and HbR, correspondingly). This specific criterion is useful in detecting and predicting early-stage neoadjuvant breast cancer treatment response. To address the issues of the limited channels in the fiber-dependent breast DOT system and limited signal-to-noise ratio in the camera-dependent systems, we hereby present a camera-based lock-in detection scheme to achieve dynamic DOT with improved SNR, which adopted orthogonal frequency division multiplexing technology.
View Article and Find Full Text PDFCharacterization, Quantification, and Molecular Identification of Co-Infection of Canine Parvovirus (CPV-2) Variants in Dogs Affected by Gastroenteritis in Ecuador During 2022-2023.
Vet Sci
January 2025
Facultad de Ciencias de La Salud, Carrera de Medicina Veterinaria, Universidad de Las Américas (UDLA), Antigua Vía a Nayón S/N, Quito EC 170124, Ecuador.
Canine parvovirus (CPV-2) is a highly contagious virus in canines, and it is mostly spread by touching infected feces. Dogs of all ages can catch it, but puppies are more likely to suffer from it. Severe signs include vomiting, diarrhea with blood, feeling tired, and not drinking enough water.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!