Acta histochemicaPub Date : 2024-07-26DOI: 10.1016/j.acthis.2024.152185
Leonardo Vitorino Costa de Aquino , Samara Lima Olindo , Yara Letícia Frutuoso e Silva , Lhara Ricarliany Medeiros de Oliveira , Yasmin Beatriz França Moura , Ana Lívia Rocha Rodrigues , Érika Almeida Praxedes , Moacir Franco de Oliveira , Alexandre Rodrigues Silva , Alexsandra Fernandes Pereira
{"title":"Cryopreservation and passaging optimization for Galea spixii (Wagler, 1831) adult skin fibroblast lines: A step forward in species management and genetic studies","authors":"Leonardo Vitorino Costa de Aquino , Samara Lima Olindo , Yara Letícia Frutuoso e Silva , Lhara Ricarliany Medeiros de Oliveira , Yasmin Beatriz França Moura , Ana Lívia Rocha Rodrigues , Érika Almeida Praxedes , Moacir Franco de Oliveira , Alexandre Rodrigues Silva , Alexsandra Fernandes Pereira","doi":"10.1016/j.acthis.2024.152185","DOIUrl":"10.1016/j.acthis.2024.152185","url":null,"abstract":"<div><h3>Background</h3><p><em>In vitro</em> culture of fibroblasts is a technique based on cell isolation, physiological characterization, and cryopreservation. This technique has not been described for <em>Galea spixii</em>, therefore, it can be used to learn about its cellular biology and genetic diversity.</p></div><div><h3>Objective</h3><p>We established fibroblast lines of six <em>G. spixii</em> individuals from several passages (second, fifth, eighth, and tenth) and cryopreserved them.</p></div><div><h3>Methods</h3><p>Fibroblasts recovered from skin biopsies were identified based on morphology, immunocytochemistry, and karyotyping. The cells were analyzed for morphology, ultrastructure, viability, proliferation, metabolism, oxidative stress, bioenergetic potential, and apoptosis before and after cryopreservation.</p></div><div><h3>Results</h3><p>After the eighth passage, the fibroblasts showed morphological and karyotypic changes, although their viability, metabolism, and proliferation did not change. An increase in oxidative stress and bioenergetic potential from the fifth to the eighth passages were also observed. Post cryopreservation, cell damage with respect to the ultrastructure, viability, proliferative rate, apoptotic levels, oxidative stress, and bioenergetic potential were verified.</p></div><div><h3>Conclusion</h3><p>Fibroblasts up to the tenth passage could be cultured <em>in vitro</em>. However, cells at the fifth passage were of better quality to be used for reproductive techniques. Additionally, optimization of the cryopreservation protocol is essential to improve the physiological parameters of these cells.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141764809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-07-24DOI: 10.1016/j.acthis.2024.152184
Yang Jiao , Qing-Min Sun , Yu-Chen Shen , Qing-Shan Li , Yong-Jun Piao , Lin Gong
{"title":"Stimulation of mouse hair regrowth by exosomes derived from human umbilical cord mesenchymal stem cells","authors":"Yang Jiao , Qing-Min Sun , Yu-Chen Shen , Qing-Shan Li , Yong-Jun Piao , Lin Gong","doi":"10.1016/j.acthis.2024.152184","DOIUrl":"10.1016/j.acthis.2024.152184","url":null,"abstract":"<div><h3>Background</h3><p>There is an urgent need for new treatments to solve hair loss problem. As mesenchymal stem cells were proved to have effects on promoting tissue repair and regeneration, in which the exosome plays a vital role, we aim to investigate the influence of umbilical cord mesenchymal stem cells exosome (UCMSC-Exos) on hair growth and its mechanism.</p></div><div><h3>Methods</h3><p>The hUCMSC-Exos were extracted by ultracentrifugation. Primary fibroblasts were cultured with or without hUCMSC-Exos and cell proliferation was evaluated by CCK-8 assay. C57BL/6 mice model of depilation-induced hair regrowth was treated with either hUCMSC-Exos (200 μg/mL) or PBS on one side of the dorsal back. Real time quantitative PCR, flow cytometry analysis, immunohistochemistry and Immunofluorescent staining were used to analyze the regulative effect of hUCMSC-Exos on hair follicle stem/progenitor cells and Wnt/β-catenin pathway.</p></div><div><h3>Results</h3><p>The proliferation of fibroblasts incubated with hUCMSC-Exos at the concentration of 200 μg/mL was greater than other groups. Treatment with hUCMSC-Exos resulted in rapid reentry into anagen. Hair follicle stem/progenitor cell markers (K15, Lgr5, Lgr6, CD34 and Lrig1) and Wnt/β-catenin pathway related factors (Wnt5, Lef1, Lrp5 and β-catenin) were increased in hUCMSC-Exos-injected region.</p></div><div><h3>Conclusion</h3><p>hUCMSC-Exos promote fibroblasts proliferation and accelerate mouse hair regrowth by upregulating hair follicle stem/progenitor cell and Wnt/β-catenin pathway, which suggests potential therapeutic approaches for hair loss disorders.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141756504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-07-18DOI: 10.1016/j.acthis.2024.152183
Suncica Kapor , Milica Radojković , Juan F. Santibanez
{"title":"Myeloid-derived suppressor cells: Implication in myeloid malignancies and immunotherapy","authors":"Suncica Kapor , Milica Radojković , Juan F. Santibanez","doi":"10.1016/j.acthis.2024.152183","DOIUrl":"10.1016/j.acthis.2024.152183","url":null,"abstract":"<div><p>Myeloid malignancies stem from a modified hematopoietic stem cell and predominantly include acute myeloid leukemia, myelodysplastic neoplasms, myeloproliferative malignancies, and chronic myelomonocytic leukemia. Myeloid-derived suppressor cells (MDSCs) exhibit immunoregulatory properties by governing the innate and adaptive immune systems, creating a permissive and supportive environment for neoplasm growth. This review examines the key characteristics of MDSCs in myeloid malignancies, highlighting that an increased MDSC count corresponds to heightened immunosuppressive capabilities, fostering an immune-tolerant neoplasm microenvironment. Also, this review analyzes and describes the potential of combined cancer therapies, focusing on targeting MDSC generation, expansion, and their inherent immunosuppressive activities to enhance the efficacy of current cancer immunotherapies. A comprehensive understanding of the implications of myeloid malignancies may enhance the exploration of immunotherapeutic strategies for their potential application.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141726710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-07-14DOI: 10.1016/j.acthis.2024.152173
Nida Andlib, Mohd Sajad, Sonu Chand Thakur
{"title":"Association of diabetes mellitus with risk of reproductive impairment in females: A comprehensive review","authors":"Nida Andlib, Mohd Sajad, Sonu Chand Thakur","doi":"10.1016/j.acthis.2024.152173","DOIUrl":"https://doi.org/10.1016/j.acthis.2024.152173","url":null,"abstract":"<div><p>Reproductive impairment is the most prevalent yet most ignored complication of diabetes mellitus. In diabetes, the problem associated with reproductive health is comprehensive in both males and females. Diabetic females have problems like delayed menarche, irregular menstrual cycle, subfertility, complications in pregnancy and early menopause. This may decrease reproductive age in diabetic females as the menarche is delayed and menopause is early in them. Like diabetic males, diabetic females also have the negative effect of oxidative stress on the reproductive system. This may lead to dysfunction of the ovary. It affects the physiological cycle like the ovary’s maturation, embryo development and pregnancy. These complications also affect the offspring, and they may also become diabetic. This review aims to concentrate on the effect of diabetes on the reproductive system of females and the impairment caused by it. We will also discuss in detail the role of the hypothalamus-pituitary ovary axis, diabetes impact on different reproductive phases of females, and the sexual disorders that occur in them.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141605122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-07-07DOI: 10.1016/j.acthis.2024.152174
Qing-yue Ma , Xiao-yan Xu , Yuan-zhang Zhu, Ning-ning Yao, Yi-chong Liu, Xiao-di Gao, Qian Zhang, Wen-juan Luo
{"title":"Artesunate inhibits vasculogenic mimicry in choroidal melanoma through HIF-1 α/ VEGF/PDGF pathway","authors":"Qing-yue Ma , Xiao-yan Xu , Yuan-zhang Zhu, Ning-ning Yao, Yi-chong Liu, Xiao-di Gao, Qian Zhang, Wen-juan Luo","doi":"10.1016/j.acthis.2024.152174","DOIUrl":"10.1016/j.acthis.2024.152174","url":null,"abstract":"<div><p>Choroidal melanoma (CM), a highly metastatic eye tumor, exhibits vasculogenic mimicry (VM) facilitated by hypoxia-induced angiogenesis. This study explored the inhibitory impact of the anti-malarial drug Artesunate (ART) on CM VM through modulation of the HIF-1α/VEGF/PDGF pathway. Immunohistochemistry (IHC) confirmed VM in CM with elevated VEGF and PDGF expression. Hypoxia promoted CM proliferation, upregulating HIF-1α, VEGF and PDGF. VEGF and PDGF enhanced CM migration, invasion and VM, with HIF-1α playing a crucial role. ART mitigated VM formation by suppressing the HIF-1α/VEGF/PDGF pathway, highlighting its potential as an anti-tumor agent in CM.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141557724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-05-01DOI: 10.1016/j.acthis.2024.152166
Nannan Liang, Kaiming Zhang
{"title":"The link between autophagy and psoriasis","authors":"Nannan Liang, Kaiming Zhang","doi":"10.1016/j.acthis.2024.152166","DOIUrl":"https://doi.org/10.1016/j.acthis.2024.152166","url":null,"abstract":"<div><p>Autophagy is a lysosome-dependent, self-renewal mechanism that degrades and recycles cellular components in eukaryotic cells to maintain the homeostasis of the intracellular environment. Psoriasis is featured by increased inflammatory response, epidermal hyperproliferation and abnormal differentiation, infiltration of immune cells and increased expression levels of both endothelial adhesion molecules and angiogenic mediators. Evidence indicates that autophagy has important roles in many different types of cells, such as lymphocytes, keratinocytes, monocytes and mesenchymal stem cells (MSCs). This paper will review the role of autophagy in the pathogenesis of psoriasis and strategies for therapeutic modulation.</p><p>Key Message</p><p>Autophagy regulates the functions of cutaneous cells (MSCs, KCs, T cells and endothelial cells). Since reduced autophagy contributes in part to the pathogenesis of psoriasis, enhancement of autophagy can be an alternative approach to mitigate psoriasis.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140813673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Immunohistochemical localization of proteins involved in exocytosis of glutamate from P2X3 purinoceptor-expressing subserosal afferent nerve endings in the rat gastric antrum","authors":"Masato Hirakawa , Takuya Yokoyama , Sayed Sharif Abdali , Yoshio Yamamoto , Tomoyuki Saino","doi":"10.1016/j.acthis.2024.152170","DOIUrl":"10.1016/j.acthis.2024.152170","url":null,"abstract":"<div><p>We previously reported the presence of P2X3 purinoceptors (P2X3)-expressing subserosal afferent nerve endings consisting of net- and basket-like nerve endings in the rat gastric antrum. These nerve endings may morphologically be vagal mechanoreceptors activated by antral peristalsis. The present study investigated immunoreactivities for vesicular glutamate transporter (VGLUT) 1 and VGLUT2 as well as exocytosis-related proteins, i.e., core components of the SNARE complex (SNAP25, Stx1, and VAMP2) and synaptotagmin-1 (Syt1), in whole-mount preparations of the rat gastric antrum using double immunofluorescence. VGLUT1 immunoreactivity was not detected, whereas VGLUT2 immunoreactivity was observed in P2X3-immunoreactive subserosal nerve endings composed of both net- and basket-like endings. In net-like nerve endings, intense VGLUT2 immunoreactivity was localized in polygonal bulges of reticular nerve fibers and peripheral axon terminals. Furthermore, intense immunoreactivities for SNAP25, Stx1, and VAMP2 were localized in net-like nerve endings. Intense immunoreactivities for VAMP2 and Syt1 were observed in VGLUT2-immunoreactive net-like nerve endings. In basket-like nerve endings, VGLUT2 immunoreactivity was localized in pleomorphic terminal structures and small bulges surrounding the subserosal ganglion, whereas immunoreactivities for SNAP25, Stx1, and VAMP2 were weak in these nerve endings. VGLUT2-immunoreactive basket-like nerve endings were weakly immunoreactive for VAMP2 and Syt1. These results suggest that subserosal afferent nerve endings release glutamate by exocytosis mainly from net-like nerve endings to modulate their mechanoreceptor function.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0065128124000382/pdfft?md5=c74d10fb49258e2095898871d4428b78&pid=1-s2.0-S0065128124000382-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-05-01DOI: 10.1016/j.acthis.2024.152167
Joseph A. DePasquale
{"title":"A comparison of teleost rodlet cells with apicomplexan cells","authors":"Joseph A. DePasquale","doi":"10.1016/j.acthis.2024.152167","DOIUrl":"https://doi.org/10.1016/j.acthis.2024.152167","url":null,"abstract":"<div><p>Rodlet cells are unique pear-shaped cells found primarily in the epithelium of the teleost fishes. The rodlet cell was first identified by Thèlohan in 1892 who named it <em>Rhabdospora thelohani</em> as it was believed to be a protozoan parasite of the phylum Apicomplexa. The rodlet cell as parasite paradigm persisted for several decades afterwards but has since faded in the last 20 years or so. The rodlet cell is now generally believed to be an immune cell, functioning as an early responder to parasite intrusion. This short review makes a detailed comparison of apicomplexan structure and behavior with that of the rodlet cell to further strengthen the argument against a parasitic nature for the fish cell. It is then proposed that apical microvilli of the rodlet cell serve as a mechanical trigger for rodlet discharge as possible defense against larger ectoparasites.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140905542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acta histochemicaPub Date : 2024-05-01DOI: 10.1016/j.acthis.2024.152169
Chunyan Li , Xinru Zhang , Maolin Wang , Zhu Wang , Qi Cheng , Junrong Du , Tao Jia
{"title":"A simple and economical method for unbiasedly quantifying the alveolar size of entire mouse lung tissue utilizing Hematoxylin and Eosin Staining","authors":"Chunyan Li , Xinru Zhang , Maolin Wang , Zhu Wang , Qi Cheng , Junrong Du , Tao Jia","doi":"10.1016/j.acthis.2024.152169","DOIUrl":"https://doi.org/10.1016/j.acthis.2024.152169","url":null,"abstract":"<div><p>Alveolar, the smallest structural and functional units within the respiratory system, play a crucial role in maintaining lung function. Alveolar damage is a typical pathological hallmark of respiratory diseases. Nevertheless, there is currently no simple, rapid, economical, and unbiased method for quantifying alveolar size for entire lung tissue. Here, firstly, we conducted lung sample slicing based on the size, shape, and distribution of airway branches of different lobes. Next, we performed HE staining on different slices. Then, we provided an unbiased quantification of alveolar size using free software ImageJ. Through this protocol, we demonstrated that C57Bl/6 mice exhibit varying alveolar sizes among different lobes. Collectively, we provided a simple and unbiased method for a more comprehensive quantification of alveolar size in mice, which holds promise for a broader range of respiratory research using mouse models.</p></div>","PeriodicalId":6961,"journal":{"name":"Acta histochemica","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141291581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}