International Journal of Developmental Biology最新文献

筛选
英文 中文
Exploring the sister cells of embryo sac: developmental and functional attributes. 探究胚囊姊妹细胞的发育与功能特性。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.220025mk
Inderdeep Kaur, Monika Koul
{"title":"Exploring the sister cells of embryo sac: developmental and functional attributes.","authors":"Inderdeep Kaur,&nbsp;Monika Koul","doi":"10.1387/ijdb.220025mk","DOIUrl":"https://doi.org/10.1387/ijdb.220025mk","url":null,"abstract":"<p><p>Synergids are metabolically dynamic cells of the egg apparatus and represent an important component of the female gametophyte. Besides directing the growth of the pollen tube towards the micropylar end of the embryo sac, these ephemeral structures make room for the pollen tube cytoplasm. The nature of chemotrophic substances that direct the growth of the pollen tube, the mechanism of degeneration of one of the synergids before fertilization and the molecular aspects of synergid morphogenesis have been studied in detail. Research carried out on model systems such as <i>Arabidopsis, Brassica, Capsella, Triticum</i> and <i>Torenia</i> has expanded our understanding of the molecular regulation of the pollen tube journey, its guidance and navigation in the pistil. Recently, the critical role of the central cell in fertilization and prevention of polytubey has also been thoroughly investigated. Interesting aspects that lead to degeneration of synergids, and the factors governing degeneration, including molecular aspects, have produced a paradigm shift in the understanding of these intriguing units. Sophisticated confocal microscopy, live cell imaging, and molecular tools have helped in furthering our knowledge of the functioning of synergids. Recent research using high throughput techniques has deciphered the role of various genes that regulate and govern the release of chemotropic substances, cell-to-cell interaction and synergid cell degeneration. Moreover, with the diversity displayed in form and function of organs in the angiosperms, and the switching of roles of the cells of egg apparatus, new insights have been provided into the involvement of synergids both pre- and post-fertilization. The present review provides a comprehensive account of synergids, their role in fertilization and the post fertilization events that have emerged using interdisciplinary approaches in recent years. We also discuss the variations observed in degeneration of synergids and the mechanisms that have been unraveled recently. Study of the dynamism exhibited by synergids reveals newer roles of these in fertilization. How synergids in angiosperm taxa where genetic transformation/alteration is carried out will respond to pollen stimuli is still unknown. Since environmental factors such as light and temperature have a significant impact on synergids and fertilization, it would be rewarding to study the role of chemo-attractants and other factors in elucidating the functional roles of synergids. Further research into developing adequate protocols for manipulating synergid functions is certainly required. This research has enormous potential in the advancement of basic science and has potential applications in agriculture, horticulture, and bioprospecting.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40720125","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}
引用次数: 0
Cyclooxygenase-2 plays a crucial role during myocardial patterning of developing chick. 环氧合酶-2在雏鸡心肌发育过程中起着至关重要的作用。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.220153sb
Bhaval K Parmar, Urja R Verma, Juhi A Vaishnav, Suresh Balakrishnan
{"title":"Cyclooxygenase-2 plays a crucial role during myocardial patterning of developing chick.","authors":"Bhaval K Parmar,&nbsp;Urja R Verma,&nbsp;Juhi A Vaishnav,&nbsp;Suresh Balakrishnan","doi":"10.1387/ijdb.220153sb","DOIUrl":"https://doi.org/10.1387/ijdb.220153sb","url":null,"abstract":"<p><p>Cyclooxygenase-2 (COX-2), a member of the Cyclooxygenase family, initiates the biosynthesis of prostanoids that regulates various cellular functions. Our pilot attempt revealed that the administration of etoricoxib, an inhibitor specific for COX-2, induces abnormal looping in the chicken heart. The present study attempts to reveal the mechanistic details of etoricoxib-induced abnormal cardiac looping. The activity of COX-2 was inhibited by administering 3.5 μg of etoricoxib into the egg's air cell on day zero of incubation. The gene and protein expression patterns of key mediators of heart development were then analyzed on day 2 (HH12) and day 3 (HH20). Reduced COX-2 activity altered the expressions of upstream regulators of organogenesis like Wnt11, BMP4, and SHH in the etoricoxib-exposed embryos. The observed expression shifts in the downstream regulators of myocardial patterning (MYOCD, HAND2, GATA4, GATA5, and GATA6) in the treated embryos corroborate the above results. In addition, the reduction in COX-2 activity hampered cardiomyocyte proliferation with a concomitant increase in the apoptosis rate. In conclusion, the collective effect of altered expression of signaling molecules of myocardial patterning and compromised cardiomyocyte turnover rate could be the reason behind the looping defects observed in the heart of etoricoxib-treated chick embryos.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9555128","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}
引用次数: 1
Zebrafish research in Greece: swimming against the current. 希腊的斑马鱼研究:逆流而行。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210129db
Dimitris Beis
{"title":"Zebrafish research in Greece: swimming against the current.","authors":"Dimitris Beis","doi":"10.1387/ijdb.210129db","DOIUrl":"https://doi.org/10.1387/ijdb.210129db","url":null,"abstract":"<p><p>The zebrafish is a vertebrate model extensively used in Developmental Biology and Human Disease modeling, as it shares high genetic and physiological similarities with humans. It has become the second most popular animal model, after mice, with several advantages over the latter: zebrafish are easily housed and cared for; the cost of installing and maintaining a zebrafish facility is significantly lower than for mice; and they reproduce often and develop quickly. Using zebrafish complies with the 3Rs principles of laboratory animal use. Zebrafish embryos develop externally and are transparent, allowing for <i>in vivo</i> non-invasive imaging. There are many transgenic and mutant lines available that mimic most human diseases, including reporter lines for most signaling pathways. There are also several reverse genetic tools to functionally verify genes or variants of unknown significance, identified in Genome-Wide Association Studies (GWAS) or using Next Generation Sequencing (NGS) approaches. In addition, the model emerges as an invaluable whole animal platform for various stages of drug discovery efforts by exploring the possibility of creating high-throughput phenotypic-driven screens. These include phenotypic screenings, determinations of general and/or specific toxicity (cardiac, renal, hepatotoxicity etc.), and mechanism of action studies. Finally, zebrafish are able to retain their capacity to regenerate most organs during their entire life span, making them a well-established model for the study of organ regeneration. The European Zebrafish Society consists of more than 180 research labs throughout Europe. In Greece however, zebrafish use remains rather limited. Here I present here a brief historical overview of zebrafish research in Greece.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39438256","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}
引用次数: 0
Evidence of Swim secretion and association with extracellular matrix in the Drosophila embryo. 果蝇胚胎中游泳分泌及其与细胞外基质关联的证据。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210205cz
Valeria Kaltezioti, Katerina M Vakaloglou, Aristidis S Charonis, Christos G Zervas
{"title":"Evidence of Swim secretion and association with extracellular matrix in the <i>Drosophila</i> embryo.","authors":"Valeria Kaltezioti,&nbsp;Katerina M Vakaloglou,&nbsp;Aristidis S Charonis,&nbsp;Christos G Zervas","doi":"10.1387/ijdb.210205cz","DOIUrl":"https://doi.org/10.1387/ijdb.210205cz","url":null,"abstract":"<p><p>Secreted wingless-interacting protein (Swim) is the <i>Drosophila</i> ortholog gene of the mammalian Tubulointerstitial Nephritis Antigen like 1 (TINAGL1), also known as lipocalin-7 (LCN7), or adrenocortical zonation factor 1 (AZ-1). Swim and TINAGL1 proteins share a significant homology, including the somatomedin B and the predictive inactive C1 cysteine peptidase domains. In mammals, both TINAGL1 and its closely related homolog TINAG have been identified in basement membranes, where they may function as modulators of integrin-mediated adhesion. In <i>Drosophila</i>, Swim was initially identified in the eggshell matrix and was subsequently detected in the culture medium of S2 cells. Further biochemical analysis indicated that Swim binds to wingless (wg) in a lipid-dependent manner. This observation, together with RNAi-knockdown studies, suggested that Swim is an essential cofactor of wg-signalling. However, recent elegant genetic studies ruled out the possibility that Swim is required alone to facilitate wg-signalling in <i>Drosophila</i>, because flies without Swim are viable and fertile. Here, we use the UAS/Gal4 expression system together with confocal imaging to analyze the <i>in vivo</i> localization of a chimeric Swim-GFP in the developing <i>Drosophila</i> embryo. Our data fully support the notion that Swim is an extracellular matrix component that is secreted upon ectopic expression and preferentially associates with the basement membranes of various organs and with the specialized tendon matrix at the muscle attachment sites (MAS). Interestingly, the accumulation of Swim at the MAS does not require integrins. In conclusion, Swim is an extracellular matrix component, and Swim may exhibit overlapping functions in concert with other undefined components.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39706101","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}
引用次数: 1
Single-cell transcriptomics defines Dot1L interacting partners and downstream target genes in the mouse molar dental pulp. 单细胞转录组学定义了小鼠臼齿髓中Dot1L相互作用的伙伴和下游靶基因。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.220141db
Rosa Guzzo, Badam Enkhmandakh, Timothy Becker, Pujan Joshi, Paul Robson, Anushree Vijaykumar, Mina Mina, Dong-Guk Shin, Dashzeveg Bayarsaihan
{"title":"Single-cell transcriptomics defines Dot1L interacting partners and downstream target genes in the mouse molar dental pulp.","authors":"Rosa Guzzo,&nbsp;Badam Enkhmandakh,&nbsp;Timothy Becker,&nbsp;Pujan Joshi,&nbsp;Paul Robson,&nbsp;Anushree Vijaykumar,&nbsp;Mina Mina,&nbsp;Dong-Guk Shin,&nbsp;Dashzeveg Bayarsaihan","doi":"10.1387/ijdb.220141db","DOIUrl":"https://doi.org/10.1387/ijdb.220141db","url":null,"abstract":"<p><p>Although histone methyltransferases are implicated in many key developmental processes, the contribution of individual chromatin modifiers in dental tissues is not well understood. Using single-cell RNA sequencing, we examined the expression profiles of the disruptor of telomeric silencing 1-like (<i>Dot1L)</i> gene in the postnatal day 5 mouse molar dental pulp. Dot1L is the only known enzyme that methylates histone 3 on lysine 79, a modification associated with gene expression. Our research revealed 15 distinct clusters representing different populations of mesenchymal stromal cells (MSCs), immune cells, pericytes, ameloblasts and endothelial cells. We documented heterogeneity in gene expression across different subpopulations of MSCs, a good indicator that these stromal progenitors undergo different phases of osteogenic differentiation. Interestingly, although <i>Dot1L</i> was broadly expressed across all cell clusters within the molar dental pulp, our analyses indicated specific enrichment of <i>Dot1L</i> within two clusters of MSCs, as well as cell clusters characterized as ameloblasts and endothelial cells. Moreover, we detected <i>Dot1L</i> co-expression with protein interactors involved in epigenetic activation such as <i>Setd2,</i> <i>Sirt1, Brd4, Isw1, Bptf</i> and <i>Suv39h1</i>. In addition, <i>Dot1L</i> was co-expressed with <i>Eed2</i>, <i>Cbx3</i> and <i>Dnmt1</i>, which encode epigenetic factors associated with gene silencing and heterochromatin formation. <i>Dot1l</i> was co-expressed with downstream targets of the insulin growth factor and WNT signaling pathways, as well as genes involved in cell cycle progression. Collectively, our results suggest that Dot1L may play key roles in orchestrating lineage-specific gene expression during MSC differentiation.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9572127","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}
引用次数: 0
Epithelial-to-mesenchymal transition of tumor cells: cancer progression and metastasis. 肿瘤细胞从上皮细胞到间质细胞的转变:癌症的进展和转移。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210180gk
Vasileios Vardas, Eleni Politaki, Evangelia Pantazaka, Vassilis Georgoulias, Galatea Kallergi
{"title":"Epithelial-to-mesenchymal transition of tumor cells: cancer progression and metastasis.","authors":"Vasileios Vardas,&nbsp;Eleni Politaki,&nbsp;Evangelia Pantazaka,&nbsp;Vassilis Georgoulias,&nbsp;Galatea Kallergi","doi":"10.1387/ijdb.210180gk","DOIUrl":"https://doi.org/10.1387/ijdb.210180gk","url":null,"abstract":"<p><p>Detection and characterization of circulating tumor cells (CTCs) with an epithelial-to-mesenchymal transition (EMT) phenotype is very important, as it can contribute to the identification of high-risk for relapse and death patients. However, most methods underestimate CTC numbers, owing to their dependence on epithelial markers. In the current study, we evaluated the EMT phenotype in CTCs isolated from breast cancer (BC) patients, using the CellSearch system. Spiking experiments for the evaluation of the specificity and sensitivity of our method were performed using HeLa cells. Sixty-five breast cancer (BC) patients (47 early and 18 metastatic) were enrolled in the study. Vimentin is a mesenchymal marker that indicates tumoral cells acquiring invasive and malignant properties. We studied vimentin (VIM) expression using the extra channel of the CellSearch system and an anti-vimentin antibody conjugated with FITC. In our present results, we reported the percentage of circulating tumor cells that expressed vimentin in early and in metastatic breast cancer patients. Interestingly, the incidence of cells with a CK-VIM+CD45- phenotype was detected in both settings. These cells were detected in 31.4% of CK-negative (11/35) and 82.3% of CK-positive (10/12) early BC patients. The corresponding numbers for metastatic disease were 15.4% (2/13) and 100% (5/5), respectively. Our results suggest that in CTC-negative patients, potentially undetectable tumor cells could be identified using the FDA-approved CellSearch system, based on the (CK-VIM+CD45-)-phenotype, offering additional information regarding metastatic dissemination in cancer patients. Further experiments evaluating more biomarkers are necessary to elucidate the mechanisms that regulate tumorigenesis and metastasis.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39794477","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}
引用次数: 9
Cortical interneuron development: a role for small Rho GTPases. 皮层中间神经元发育:小Rho gtpase的作用。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210186dk
Zouzana Kounoupa, Domna Karagogeos
{"title":"Cortical interneuron development: a role for small Rho GTPases.","authors":"Zouzana Kounoupa,&nbsp;Domna Karagogeos","doi":"10.1387/ijdb.210186dk","DOIUrl":"https://doi.org/10.1387/ijdb.210186dk","url":null,"abstract":"<p><p>GABAergic interneurons control cortical excitation/inhibition balance and are implicated in severe neurodevelopmental disorders. In contrast to the multiplicity of signals underlying the generation and migration of cortical interneurons, the intracellular proteins mediating the response to these cues are largely unknown. We have demonstrated the unique and diverse roles of the Rho GTPases Rac1 and 3 in cell cycle and morphology in transgenic animals where Rac1 and Rac1/3 were ablated specifically in cortical interneurons. In the Rac1 mutant, progenitors delay their cell cycle exit, probably due to a prolonged G1 phase resulting in a cortex with 50% reductions in interneurons and an imbalance of excitation/inhibition in cortical circuits. This disruption in GABAergic inhibition alters glutamatergic function in the adult cortex, which could be reversed by enhancement of GABAergic functions during an early postnatal period. Furthermore, this disruption disturbs neuronal synchronization in the adult cortex. In the double mutant, additional severe cytoskeletal defects result in an 80% interneuron decrease. Both lines die postnatally from epileptic seizures. We have made progress towards characterizing the cell cycle defect in Rac1 mutant interneuron progenitors, determining the morphological and synaptic characteristics of single and double mutant interneurons and identifying some of the molecular players through which Racs exert their actions via proteomic analysis. In our present work, we review these studies and discuss open questions and future perspectives. We hope that our data will contribute to the understanding of the function of cortical interneurons, especially since preclinical models of interneuron-based cell therapies are being established.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39794479","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}
引用次数: 2
RNA silencing pathways in plant development and defense. RNA沉默途径在植物发育和防御中的作用。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210189kk
Nikoleta Kryovrysanaki, Anthony James, Martha Tselika, Eirini Bardani, Kriton Kalantidis
{"title":"RNA silencing pathways in plant development and defense.","authors":"Nikoleta Kryovrysanaki,&nbsp;Anthony James,&nbsp;Martha Tselika,&nbsp;Eirini Bardani,&nbsp;Kriton Kalantidis","doi":"10.1387/ijdb.210189kk","DOIUrl":"https://doi.org/10.1387/ijdb.210189kk","url":null,"abstract":"<p><p>RNA silencing refers to a conserved eukaryotic process and is regarded as one of the most important processes in plants, with the ability to regulate gene expression both transcriptionally and post-transcriptionally. Different classes of non-coding RNAs (ncRNAs) constitute key components of the RNA silencing pathways and play pivotal roles in modulating various biological processes as well as host-pathogen interactions. One of the most extensively studied classes of ncRNAs are the 20-24 nucleotide (nt) long microRNAs (miRNAs), which are core components of the endogenous gene silencing pathway. miRNAs act as negative regulators of endogenous gene expression through either mRNA-target cleavage, translational inhibition, or DNA methylation, and are inextricably linked to a plethora of developmental processes, such as leaf pattern formation as well as abiotic and biotic stress responses. In this review, we focus on the role of the RNA silencing pathways in the regulation of developmental processes as well as in the plant responses to biotic stress.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39794481","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}
引用次数: 8
Developmental and regenerative biology of cardiomyocytes. 心肌细胞的发育和再生生物学。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210159kh
Angeliki Daiou, Katerina Petalidou, Georgios Siokatas, Eleftherios I Papadopoulos, Konstantinos E Hatzistergos
{"title":"Developmental and regenerative biology of cardiomyocytes.","authors":"Angeliki Daiou,&nbsp;Katerina Petalidou,&nbsp;Georgios Siokatas,&nbsp;Eleftherios I Papadopoulos,&nbsp;Konstantinos E Hatzistergos","doi":"10.1387/ijdb.210159kh","DOIUrl":"https://doi.org/10.1387/ijdb.210159kh","url":null,"abstract":"<p><p>Current progress and challenges in understanding the molecular and cellular mechanisms of cardiomyocyte embryonic development and regeneration are reviewed in our present work. Three major topics are critically discussed: how do cardiomyocytes form in the embryo? What is the adult origin of the cells that regenerate cardiomyocytes in animal models with adult heart regeneration capabilities? Can the promise of therapeutic cardiomyocyte regeneration be realized in humans? In the first topic, we highlight current advances in understanding the developmental biology of cardiomyocytes, with emphasis on the regulative capabilities of the early embryo during specification and allocation of the cardiomyoblasts that produce the primordial heart. We place further emphasis on trabecular cardiomyocyte development from late cardiomyoblasts, neural crest cells and primordial cardiomyocytes, and their critical role in the clonal growth of the compact/septal and cortical cardiomyocyte layers in the mammalian embryo and adult zebrafish, respectively. In the second topic, we focus on the re-activation of the cortical or trabecular compaction programs as hallmarks of cardiomyocyte regenerative cells during adult zebrafish and neonatal mouse heart regeneration, respectively, and underscore the metabolic remodeling that commonly drives cardiomyocyte regeneration in these organisms. Finally, we discuss the status of preclinical and clinical-stage therapeutics for cardiomyocyte regeneration, with particular emphasis on gene therapy, as well as adult and pluripotent stem cell-based cellular cardiomyoplasty approaches. In summary, our article provides a bird's-eye view of current knowledge and potential pitfalls in the field of developmental biology-guided regenerative medicine strategies for the treatment of heart diseases.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39705317","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}
引用次数: 1
Keratinocyte differentiation and proteolytic pathways in skin (patho) physiology. 皮肤(病理)生理学中的角质细胞分化和蛋白水解途径。
IF 0.7 4区 生物学
International Journal of Developmental Biology Pub Date : 2022-01-01 DOI: 10.1387/ijdb.210161gs
Eleni Zingkou, Georgios Pampalakis, Georgia Sotiropoulou
{"title":"Keratinocyte differentiation and proteolytic pathways in skin (patho) physiology.","authors":"Eleni Zingkou,&nbsp;Georgios Pampalakis,&nbsp;Georgia Sotiropoulou","doi":"10.1387/ijdb.210161gs","DOIUrl":"https://doi.org/10.1387/ijdb.210161gs","url":null,"abstract":"<p><p>The epidermis is a stratified epithelium that forms the barrier between the organism and its environment. It is mainly composed of keratinocytes at various stages of differentiation. The stratum corneum is the outermost layer of the epidermis and is formed of multiple layers of anucleated keratinocytes called corneocytes. We aim to highlight the roles of epidermal differentiation and proteolysis in skin diseases. Skin biopsies isolated from <i>Spink5<sup>-/-</sup></i> mice, the established model of Netherton syndrome (NS), and from patients with NS, seborrheic dermatitis (SD) and psoriasis, as well as healthy controls, were analyzed by histology and immunohistochemistry. Our results showed that NS, SD, and psoriasis are all characterized by abnormal epidermal differentiation, manifested by hyperplasia, hyperkeratosis, and parakeratosis. At the molecular level, abnormal differentiation is accompanied by increased expression of involucrin and decreased expression of loricrin in NS and psoriasis. Increased epidermal proteolysis associated with increased kallikrein-related peptidases (KLKs) expression is also observed in both NS and psoriatic epidermis. Furthermore, reduced expression of desmosomal proteins is observed in NS, but increased in psoriasis. Since desmosomal proteins are proteolytic substrates and control keratinocyte differentiation, their altered expression directly links epidermal proteolysis to differentiation. In conclusion, abnormal cellular differentiation and proteolysis are interconnected and underlie the pathology of NS, SD and psoriasis.</p>","PeriodicalId":50329,"journal":{"name":"International Journal of Developmental Biology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39705318","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}
引用次数: 3
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信