4.4 Article

Early ultrastructural events of skeletal muscle damage following cardiotoxin-induced injury and glycerol-induced injury

Journal

MICRON
Volume 91, Issue -, Pages 29-40

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.micron.2016.09.009

Keywords

Basal lamina; Cardiotoxin (CTX); Glycerol injury; Satellite cells; Ultrastructure

Categories

Funding

  1. Japan Society for the Promotion of Science/Ministry of Education, Culture, Sports, Science and Technology (JSPS/MEXT) KAKENHI [26450444, 16H0258]
  2. Grants-in-Aid for Scientific Research [26450444, 16H02585] Funding Source: KAKEN

Ask authors/readers for more resources

In this study, we investigated the early changes of skeletal muscle damage in response to injuries induced by cardiotoxin (CTX) and glycerol by using both light microscopy and transmission electron microscopy. Normal, non-dystrophic, adult male mice were used in this study. Tibialis anterior (TA) muscles were injected either with CTX or glycerol. Samples were collected at intervals starting from 1 h up to 4 days after injury. Injured muscles were subjected to both histological and ultrastructural analyses. CTX-induced injury caused mitochondrial accumulation and swelling followed by lysis, while glycerol-induced injury caused accumulation of vesicles with focal disruption of the basal lamina, indicating that the injuries have different mechanisms of damage to myofibers. Moreover, inflammatory cells, including neutrophils and macrophages, were recruited earlier and in larger numbers after CTX-induced injury than after glycerol induced injury. On the other hand, satellite cells (SCs) activation started at 6 h after both injuries, as indicated by an increase in both the length and cytoplasmic-to-nuclear ratio. However, there were significantly longer SCs with a higher cytoplasmic-to-nuclear ratio in the CTX-injured muscles than in the glycerol-injured muscles at day 4. In conclusion, our results demonstrated a difference between CTX and glycerol in their damage to myofibers; CTX damages myofiber mitochondria, while glycerol damages the myofiber cell membrane and alters osmosis. In addition, CTX-induced injury caused earlier and more extensive inflammatory infiltration than did glycerol-induced injury. This study is the first study to shed light on the early events following skeletal muscle injury induced by CTX and glycerol. (C) 2016 Elsevier Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Anatomy & Morphology

Correlation between computed tomography, magnetic resonance imaging and cross-sectional anatomy of the head of the guinea pig (Cavia porcellus, Linnaeus 1758)

Mohamed A. A. Mahdy

Summary: This study aimed to investigate the anatomical features of the guinea pig's head using CT and MRI imaging techniques, comparing the anatomical sections with the images obtained. It found that the bony structures and air cavities of the guinea pig head could be accurately identified through CT and MRI, providing valuable insights into the anatomical characteristics of guinea pigs.

ANATOMIA HISTOLOGIA EMBRYOLOGIA (2022)

Article Veterinary Sciences

Preliminary study of the gene expression of sulfation and degradation enzymes for chondroitin sulfate in glycerol-treated C2C12 myoblast cells

Yoshinao Z. Hosaka, Sota Washie, Katsuhiko Warita

Summary: In this study, chemical damage was induced in C2C12 myoblasts that had differentiated into myotubes with glycerol. The gene expression levels of sulfation enzymes and degradation enzymes were examined. Treatment with 5% glycerol significantly increased the expression levels of certain enzymes, while others remained unchanged. These differences in enzyme expression may provide insights into the responsiveness of myoblasts to glycerol after muscle injury.

JOURNAL OF VETERINARY MEDICAL SCIENCE (2022)

Article Veterinary Sciences

Chondroitin sulfate E downregulates N-cadherin and suppresses myotube formation

Fumi Satoh, Akihiro Sugiura, Jiro Tashiro, Yoshinao Z. Hosaka, Katsuhiko Warita

Summary: In this study, the researchers investigated the mechanism underlying the suppression of myotube formation induced by chondroitin sulfate E (CS-E). They found that CS-E treatment downregulated N-cadherin, which may contribute to the inhibition of myotube formation.

JOURNAL OF VETERINARY MEDICAL SCIENCE (2022)

Article Anatomy & Morphology

Effect of di(n-butyl) phthalate on the blood-testis barrier during puberty onset

Reneilwe A. Molele, Musa Zakariah, Mohammed I. A. Ibrahim, Mohamed A. A. Mahdy, Geoffrey T. Fosgate, Geoffrey Brown

Summary: This study investigated the dose-related ultrastructural changes in Sertoli cells and junctional complexes of the blood-testis barrier (BTB) in Japanese quail exposed to DBP prior to puberty. The results showed that exposure to DBP led to structural changes in Sertoli cells and junctional complexes, potentially interfering with spermatogenesis.

ANATOMIA HISTOLOGIA EMBRYOLOGIA (2023)

Article Medicine, Research & Experimental

Alterations in the omics profiles in mevalonate pathway-inhibited cancer cells

Tomoko Warita, Nanami Irie, Yaxuan Zhou, Jiro Tashiro, Akihiro Sugiura, Zoltan N. Oltvai, Katsuhiko Warita

Summary: This study found that statins have inhibitory effects on cancer cells, but the mechanisms and modes of their anti-tumor effects are unclear. Statins may inhibit cancer cell proliferation by decreasing the expression of cell cycle- and DNA replication-related genes, and also decrease the activity of metabolic pathways such as polyamine metabolism, purine metabolism, glycolysis, and pentose phosphate pathway to enhance the anticancer effects. Therefore, combining statins with inhibitors of these metabolic pathways may improve the anticancer efficacy of statins.

LIFE SCIENCES (2023)

Article Anatomy & Morphology

Morphology of the soft palate and palatine tonsil of the goat (Capra hyricus)

Mohamed A. A. Mahdy, Salma. A. A. Mohamed, Kamal E. H. Abdalla

Summary: The present study investigates the morphology of the goat's soft palate and palatine tonsil using various methods, including gross anatomy, morphometry, light microscopy, and scanning electron microscopy (SEM). The findings reveal that the palatine tonsil of goats is well-developed with extensive crypt system, indicating its crucial role in the immunological response against antigens that enter through the oral cavity.

MICROSCOPY RESEARCH AND TECHNIQUE (2023)

Article Anatomy & Morphology

A comprehensive study on the arterial vasculature of the brain in water buffalo (Bubalus bubalis): Clinical correlates

Masuood Ahmad John, Rakshan Rashid, Abrar A. Malik, Jasvinder Singh Sasan, Abdul Qayoom Mir, Abdur Rezzaque Choudhury, Firdous Ahmad Dar, Andleeb Rafiq, Mohamed A. A. Mahdy

Summary: The present study provides a comprehensive analysis of the arterial blood vasculature in water buffalo brains. It reveals that the buffalo brain exhibits similar morphological features to other Bovini species, such as a heart-shaped arterial circle and the use of cranial nerve roots to differentiate various branches. The study also reports on abnormal morphology of the rostral cerebral artery, providing a foundation for further research on clinical applications of the buffalo brain blood vasculature.

ANATOMIA HISTOLOGIA EMBRYOLOGIA (2023)

Article Biochemistry & Molecular Biology

HMG-CoA reductase degrader, SR-12813, counteracts statin-induced upregulation of HMG-CoA reductase and augments the anticancer effect of atorvastatin

Yaxuan Zhou, Jiro Tashiro, Shiori Kamatani, Nanami Irie, Akito Suzuki, Takuro Ishikawa, Katsuhiko Warita, Zoltan N. Oltvai, Tomoko Warita

Summary: Statins have potential as cancer therapeutic agents, but some cancer cells are resistant to them. This study investigates the mechanism of HMGCR degradation in influencing the anticancer effects of statins. The dual-targeting of HMGCR using statins and a degrader compound could improve anticancer therapy.

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS (2023)

Article Endocrinology & Metabolism

Housekeeping gene expression variability in differentiating and non-differentiating 3T3-L1 cells

Danang Dwi Cahyadi, Tomoko Warita, Nanami Irie, Kana Mizoguchi, Jiro Tashiro, Yoshinao Z. Hosaka, Katsuhiko Warita

Summary: Normalization is crucial for accurate gene expression analysis. This study used reverse transcription-quantitative polymerase chain reaction to measure the expression of 10 housekeeping genes in 3T3-L1 cells. Various methods were used to assess expression stability, and it was found that the reference gene expression levels changed over time. Peptidylprolyl isomerase A (Ppia) and TATA box-binding protein (Tbp) were identified as stable reference genes in both undifferentiated and differentiated cells. Importantly, the expression of known reference genes in undifferentiated cells was altered throughout the experiment.

ADIPOCYTE (2023)

Article Multidisciplinary Sciences

Expression of housekeeping genes varies depending on mevalonate pathway inhibition in cancer cells

Nanami Irie, Katsuhiko Warita, Jiro Tashiro, Yaxuan Zhou, Takuro Ishikawa, Zoltan N. Oltval, Tomoko Warita

Summary: Statins have anticancer effects and may affect the expression of internal reference genes used in gene expression analyses, which could lead to misleading assessment of obtained data. Therefore, caution should be exercised when comparing target gene expression between cells.

HELIYON (2023)

Article Veterinary Sciences

Comparison of the anticancer effects of various statins on canine oral melanoma cells

Takuro Ishikawa, Nanami Irie, Jiro Tashiro, Tomohiro Osaki, Tomoko Warita, Katsuhiko Warita, Munekazu Naito

Summary: This study compared the anticancer effects of different statins on canine oral melanoma and found that lipophilic statins were more effective in inhibiting cell proliferation and inducing cell death than hydrophilic statins. Among the statins tested, pitavastatin had the highest anticancer effect.

VETERINARY AND COMPARATIVE ONCOLOGY (2023)

Article Agriculture, Dairy & Animal Science

Qualitative and quantitative analyses in sulfated glycosaminoglycans, chondroitin sulfate/dermatan sulfate, during 3 T3-L1 adipocytes differentiation

Danang Dwi Cahyadi, Katsuhiko Warita, Naoko Takeda-Okuda, Jun-ichi Tamura, Yoshinao Hosaka

Summary: This study aimed to analyze the changes in chondroitin sulfate/dermatan sulfate (CS/DS) in 3 T3-L1 cells before and after adipogenic induction. The results showed a significant decrease in CS/DS amount and lower molecular weight in differentiated cells, with CS-A being the major subtype.

ANIMAL SCIENCE JOURNAL (2023)

Article Biochemistry & Molecular Biology

Compositional analysis of chondroitin/dermatan sulfate in rhesus monkeys (Macaca mulatta)

Danang Dwi Cahyadi, Munehiro Okamoto, Katsuhiko Warita, Naoko Takeda-Okuda, Jun-ichi Tamura, Yoshinao Z. Hosaka

Summary: The major disaccharide units of glycosaminoglycans (GAGs) in rhesus monkey tissues were found to be chondroitin sulfate (CS) and dermatan sulfate (DS), with the sulfation pattern primarily being of A and C types. Additionally, the E and iE types were specifically distributed in the tracheal and gastrointestinal tissues.

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY (2022)

Article Education & Educational Research

Evaluation of the Emergency Remote Learning of Veterinary Anatomy During the COVID-19 Pandemic: Global Students' Perspectives

Mohamed A. A. Mahdy, Zamzam M. Ewaida

Summary: The study evaluated the shift to remote teaching of veterinary anatomy during the COVID-19 pandemic based on students' perspectives. Data showed that the majority of students were interested in studying anatomy online, comfortable with technological skills, and can understand online anatomy well. However, a significant portion of students still believe that online learning cannot replace face-to-face teaching.

FRONTIERS IN EDUCATION (2022)

Article Microscopy

Effect of curcumin on malignant hepatocytes and mitochondria studied using atomic force microscopy

Shengli Zhang, Ying Wang, Bowei Wang, Yi Zeng, Jiani Li, Xingyue Wang, Cuihua Hu, Zhankun Weng, Zuobin Wang

Summary: Curcumin was found to have effects on the activity, migration, and mitochondrial membrane potential of malignant hepatocytes and their mitochondria. The findings from both optical microscopy and atomic force microscopy studies confirm these effects on cell morphology and biomechanics.

MICRON (2024)

Article Microscopy

Quantification of golgi dispersal and classification using machine learning models

Rutika Sansaria, Krishanu Dey Das, Alwin Poulose

Summary: This paper presents a method for quantifying Golgi dispersion images and classifying them using machine learning models. By applying automated image processing and segmentation, extracting features, and using different classifiers, accurate classification of Golgi images is achieved.

MICRON (2024)

Article Microscopy

Morphology and ultrastructure of the colleterial glands in Myzinum flower wasps (Tiphiidae, Hymenoptera)

Marjorie da Silva, Cintia Eleonora Lopes Justino, Fernando Henrique Carnimeo, Fernando Barbosa Noll, Johan Billen

Summary: This article describes the secretory glands in females of two species of Myzinum and discusses their homology with other glands in the Hymenoptera order. The study finds that the three glands, instead of the commonly believed two, are present in Myzinum species. However, the limited research on the structure, function, and evolution of female accessory glands in Hymenoptera prevents conclusive statements.

MICRON (2024)

Article Microscopy

Cellular evidence of communication strategies for small intestinal high endothelial cells: Ultrastructural insights of nano-scale exosomes and autophagy

Ping Hao, Wen Yin, Xi Chen, Shuangshuang Qin, Yue Yu, Yuan Yuan, Xiaoyu Quan, Bing Hu, Shouhai Chen, Yi Wu

Summary: This study confirmed the secretion of nano-scale exosomes-multivesicular bodies and the interaction of high endothelial cells (HECs) with lysosomes and mitochondria in the small intestine of laying birds. Immunohistochemistry and immunofluorescence results showed the strong immunoreactivity of exosome-related proteins and autophagic-related proteins in the lamina propria of the small intestine. These findings reveal an innovative communication method among HECs in the small intestine.

MICRON (2024)

Article Microscopy

Morphological and fractal features of cancer cells anchored on composite layers based on magnesium-doped hydroxyapatite loaded in chitosan matrix

Stefan Talu, Robert S. Matos, Henrique Duarte da Fonseca Filho, Daniela Predoi, Simona Liliana Iconaru, Carmen Steluta Ciobanu, Liliana Ghegoiu

Summary: This study developed composite layers based on magnesium-doped hydroxyapatite and chitosan, and demonstrated their good biocompatibility and antifungal effects against osteosarcoma cells. The attachment and growth of the cells on the composite layers were promoted, while the growth of Candida albicans was inhibited. The morphological analysis revealed complex 3D patterns on the cancer cell surfaces on the magnesium-containing composite layers.

MICRON (2024)