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Zamojski D, Gogler A, Scieglinska D, Marczyk M. EpidermaQuant: Unsupervised Detection and Quantification of Epidermal Differentiation Markers on H-DAB-Stained Images of Reconstructed Human Epidermis. Diagnostics (Basel) 2024; 14:1904. [PMID: 39272688 PMCID: PMC11394256 DOI: 10.3390/diagnostics14171904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 08/22/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
The integrity of the reconstructed human epidermis generated in vitro can be assessed using histological analyses combined with immunohistochemical staining of keratinocyte differentiation markers. Technical differences during the preparation and capture of stained images may influence the outcome of computational methods. Due to the specific nature of the analyzed material, no annotated datasets or dedicated methods are publicly available. Using a dataset with 598 unannotated images showing cross-sections of in vitro reconstructed human epidermis stained with DAB-based immunohistochemistry reaction to visualize four different keratinocyte differentiation marker proteins (filaggrin, keratin 10, Ki67, HSPA2) and counterstained with hematoxylin, we developed an unsupervised method for the detection and quantification of immunohistochemical staining. The pipeline consists of the following steps: (i) color normalization; (ii) color deconvolution; (iii) morphological operations; (iv) automatic image rotation; and (v) clustering. The most effective combination of methods includes (i) Reinhard's normalization; (ii) Ruifrok and Johnston color-deconvolution method; (iii) proposed image-rotation method based on boundary distribution of image intensity; and (iv) k-means clustering. The results of the work should enhance the performance of quantitative analyses of protein markers in reconstructed human epidermis samples and enable the comparison of their spatial distribution between different experimental conditions.
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Affiliation(s)
- Dawid Zamojski
- Department of Data Science and Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
- Genetic Laboratory, Gyncentrum Sp. z o.o., 41-208 Sosnowiec, Poland
| | - Agnieszka Gogler
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland
| | - Dorota Scieglinska
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland
| | - Michal Marczyk
- Department of Data Science and Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
- Yale Cancer Center, Yale School of Medicine, New Haven, CT 06510, USA
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Li Y, Liu Y, Chen Y, Yao C, Yu S, Qu J, Chen G, Wei H. Combined effects of polystyrene nanoplastics and lipopolysaccharide on testosterone biosynthesis and inflammation in mouse testis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116180. [PMID: 38458071 DOI: 10.1016/j.ecoenv.2024.116180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Microplastics (MPs)/nanoplastics (NPs), as a source and vector of pathogenic bacteria, are widely distributed in the natural environments. Here, we investigated the combined effects of polystyrene NPs (PS-NPs) and lipopolysaccharides (LPS) on testicular function in mice for the first time. 24 male mice were randomly assigned into 4 groups, control, PS-NPs, LPS, and PS-NPs + LPS, respectively. Histological alterations of the testes were observed in mice exposed to PS-NPs, LPS or PS-NPs + LPS. Total sperm count, the levels of testosterone in plasma and testes, the expression levels of steroidogenic acute regulatory (StAR) decreased more remarkable in testes of mice treated with PS-NPs and LPS than the treatment with LPS or PS-NPs alone. Compared with PS-NPs treatment, LPS treatment induced more sever inflammatory response in testes of mice. Moreover, PS-NPs combined with LPS treatment increased the expression of these inflammatory factors more significantly than LPS treatment alone. In addition, PS-NPs or LPS treatment induced oxidative stress in testes of mice, but their combined effect is not significantly different from LPS treatment alone. These results suggest that PS-NPs exacerbate LPS-induced testicular dysfunction. Our results provide new evidence for the threats to male reproductive function induced by both NPs and bacterial infection in human health.
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Affiliation(s)
- Yanli Li
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China
| | - Yingqi Liu
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China; Wujiang Center for Disease Control and Prevention, Suzhou, Jiangsu 215299, China
| | - Yanhong Chen
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China
| | - Chenjuan Yao
- Department of Molecular Oral Physiology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima-Shi, Tokushima 770-8504, Japan
| | - Shali Yu
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China
| | - Jianhua Qu
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China
| | - Gang Chen
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China.
| | - Haiyan Wei
- Department of Occupational Medicine and Environmental Toxicology, College of Public Health, Nantong University, Nantong, Jiangsu 226019, China.
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Benchimol GDC, Santos JB, Lopes ASDC, Oliveira KG, Okada EST, de Alcantara BN, Pereira WLA, Leão DL, Martins ACC, Carneiro LA, Imbeloni AA, Makiama ST, de Castro LPPA, Coutinho LN, Casseb LMN, Vasconcelos PFDC, Domingues SFS, Medeiros DBDA, Scalercio SRRDA. Zika Virus Infection Damages the Testes in Pubertal Common Squirrel Monkeys ( Saimiri collinsi). Viruses 2023; 15:615. [PMID: 36992324 PMCID: PMC10051343 DOI: 10.3390/v15030615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 02/26/2023] Open
Abstract
During the Zika virus (ZIKV) outbreak and after evidence of its sexual transmission was obtained, concerns arose about the impact of the adverse effects of ZIKV infection on human fertility. In this study, we evaluated the clinical-laboratory aspects and testicular histopathological patterns of pubertal squirrel monkeys (Saimiri collinsi) infected with ZIKV, analyzing the effects at different stages of infection. The susceptibility of S. collinsi to ZIKV infection was confirmed by laboratory tests, which detected viremia (mean 1.63 × 106 RNA copies/µL) and IgM antibody induction. Reduced fecal testosterone levels, severe testicular atrophy and prolonged orchitis were observed throughout the experiment by ultrasound. At 21 dpi, testicular damage associated with ZIKV was confirmed by histopathological and immunohistochemical (IHC) analyses. Tubular retraction, the degeneration and necrosis of somatic and germ cells in the seminiferous tubules, the proliferation of interstitial cells and an inflammatory infiltrate were observed. ZIKV antigen was identified in the same cells where tissue injuries were observed. In conclusion, squirrel monkeys were found to be susceptible to the Asian variant of ZIKV, and this model enabled the identification of multifocal lesions in the seminiferous tubules of the infected group evaluated. These findings may suggest an impact of ZIKV infection on male fertility.
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Affiliation(s)
- Gabriela da Costa Benchimol
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
- Postgraduate Program in Virology (PPGV), Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
| | - Josye Bianca Santos
- Laboratory of Amazon Animal Biotechnology and Medicine (BIOMEDAM), Federal University of Pará, Castanhal 68740-970, Pará, Brazil
- Postgraduate Program in Animal Reproduction in the Amazon (ReproAmazon), Federal University of Pará, Castanhal 68740-970, Pará, Brazil
| | | | | | | | | | - Washington Luiz Assunção Pereira
- Laboratory of Animal Pathology (LABOPAT), Institute of Health and Animal Production, Federal Rural University of the Amazon, Belém 66077-830, Pará, Brazil
| | - Danuza Leite Leão
- Laboratory of Amazon Animal Biotechnology and Medicine (BIOMEDAM), Federal University of Pará, Castanhal 68740-970, Pará, Brazil
- Mamirauá Institute for Sustainable Development, Tefé 69553-225, Amazonas, Brazil
| | | | | | | | | | | | - Leandro Nassar Coutinho
- Laboratory of Animal Pathology (LABOPAT), Institute of Health and Animal Production, Federal Rural University of the Amazon, Belém 66077-830, Pará, Brazil
| | - Lívia Medeiros Neves Casseb
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
- Postgraduate Program in Virology (PPGV), Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
- Department of Pathology, Center of Biologic and Health Sciences, State University of Pará, Belém 66050-540, Pará, Brazil
| | - Sheyla Farhayldes Souza Domingues
- Laboratory of Amazon Animal Biotechnology and Medicine (BIOMEDAM), Federal University of Pará, Castanhal 68740-970, Pará, Brazil
- Postgraduate Program in Animal Reproduction in the Amazon (ReproAmazon), Federal University of Pará, Castanhal 68740-970, Pará, Brazil
- School of Veterinary Medicine, Federal University of Pará, Castanhal 68740-970, Pará, Brazil
| | - Daniele Barbosa de Almeida Medeiros
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
- Postgraduate Program in Virology (PPGV), Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil
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Yang R, Stendahl AM, Vigh-Conrad KA, Held M, Lima AC, Conrad DF. SATINN: an automated neural network-based classification of testicular sections allows for high-throughput histopathology of mouse mutants. Bioinformatics 2022; 38:5288-5298. [PMID: 36214638 PMCID: PMC9710558 DOI: 10.1093/bioinformatics/btac673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/26/2022] [Accepted: 10/06/2022] [Indexed: 12/24/2022] Open
Abstract
MOTIVATION The mammalian testis is a complex organ with a cellular composition that changes smoothly and cyclically in normal adults. While testis histology is already an invaluable tool for identifying and describing developmental differences in evolution and disease, methods for standardized, digital image analysis of testis are needed to expand the utility of this approach. RESULTS We developed SATINN (Software for Analysis of Testis Images with Neural Networks), a multi-level framework for automated analysis of multiplexed immunofluorescence images from mouse testis. This approach uses residual learning to train convolutional neural networks (CNNs) to classify nuclei from seminiferous tubules into seven distinct cell types with an accuracy of 81.7%. These cell classifications are then used in a second-level tubule CNN, which places seminiferous tubules into one of 12 distinct tubule stages with 57.3% direct accuracy and 94.9% within ±1 stage. We further describe numerous cell- and tubule-level statistics that can be derived from wild-type testis. Finally, we demonstrate how the classifiers and derived statistics can be used to rapidly and precisely describe pathology by applying our methods to image data from two mutant mouse lines. Our results demonstrate the feasibility and potential of using computer-assisted analysis for testis histology, an area poised to evolve rapidly on the back of emerging, spatially resolved genomic and proteomic technologies. AVAILABILITY AND IMPLEMENTATION The source code to reproduce the results described here and a SATINN standalone application with graphic-user interface are available from http://github.com/conradlab/SATINN. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Ran Yang
- To whom correspondence should be addressed. or or
| | - Alexandra M Stendahl
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University, Portland, OR 97006, USA
| | - Katinka A Vigh-Conrad
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University, Portland, OR 97006, USA
| | - Madison Held
- Division of Genetics, Oregon National Primate Research Center, Oregon Health and Science University, Portland, OR 97006, USA
| | - Ana C Lima
- To whom correspondence should be addressed. or or
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Melo IO, Angelo Mendes Tenorio FDC, da Silva Gomes JA, da Silva Junior VA, de Albuquerque Nogueira R, Tenorio BM. Fractal methods applied to the seminiferous lumen images can quantify testicular changes induced by heat stress. Acta Histochem 2022; 124:151949. [PMID: 36007436 DOI: 10.1016/j.acthis.2022.151949] [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: 04/29/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022]
Abstract
Male infertility affects many couples around the world and can be related to environmental factors such as exposure to high temperatures. Even so, automated methods evaluating the seminiferous tubules to detect testicular damage are still scarce. In search of new approaches to automation in the microscopic analysis of the testis; the present study used the fractal dimension, lacunarity, multifractality and quantitative morphometry to quantify changes in microphotographs of the seminiferous lumen in testicles reversibly damaged by heat stress (43 °C, 12 min). The parameters fractal dimension, lacunarity, multifractality (Dq and α), perimeter, feret and circularity were able to detect changes in the seminiferous lumen at 7, 15 and 30 days after the testicular damage. These methods also detected the recovery of spermatogenesis at 60 days after heat stress. Area, f(α), centroid X and Y, roundness, rectangle height and width were unable to detect changes caused by heat stress. In conclusion, computer assisted methods applied to the seminiferous lumen images can be a useful new viewpoint to analyze microscopic changes in the testicles, a fast low-cost tool to assist in the automated quantification of testicular damage.
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Affiliation(s)
- Isabel Oliveira Melo
- Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | | | - José Anderson da Silva Gomes
- Department of Histology and Embryology, Bioscience Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | | | - Bruno Mendes Tenorio
- Department of Histology and Embryology, Bioscience Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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