J. Mamczur, Manuela Pajdowska, Aleksandra Krasińska, A. Brązert
Abstract This article aims to present up-to-date information on ocular symptoms of pediatric multi-system inflammatory syndrome. The reviewers obtained the results based on a search of an electronic database. The pediatric multi-system inflammatory syndrome appears a few weeks after COVID-19 in children. The exact etiology remains unclear. It is diagnosed based on clinical and laboratory criteria. The most prevalent manifestation of the syndrome is non-purulent conjunctivitis (observed in around 50% of cases). The other ocular findings in the pediatric multi-system inflammatory syndrome can be; eyelid swelling, bilateral uveitis or vitreous hyperreflective dots in the posterior vitreous. The treatment of the ophthalmic symptoms is systemic and topical, targeting the enhanced inflammatory response of the organism and the presence of the given ocular findings.
{"title":"Ocular Manifestations of Pediatric Inflammatory Multisystem Syndrome","authors":"J. Mamczur, Manuela Pajdowska, Aleksandra Krasińska, A. Brązert","doi":"10.2478/acb-2022-0010","DOIUrl":"https://doi.org/10.2478/acb-2022-0010","url":null,"abstract":"Abstract This article aims to present up-to-date information on ocular symptoms of pediatric multi-system inflammatory syndrome. The reviewers obtained the results based on a search of an electronic database. The pediatric multi-system inflammatory syndrome appears a few weeks after COVID-19 in children. The exact etiology remains unclear. It is diagnosed based on clinical and laboratory criteria. The most prevalent manifestation of the syndrome is non-purulent conjunctivitis (observed in around 50% of cases). The other ocular findings in the pediatric multi-system inflammatory syndrome can be; eyelid swelling, bilateral uveitis or vitreous hyperreflective dots in the posterior vitreous. The treatment of the ophthalmic symptoms is systemic and topical, targeting the enhanced inflammatory response of the organism and the presence of the given ocular findings.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"61 - 64"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43622980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aleksandra Krasińska, J. Mamczur, Manuela Pajdowska, A. Brązert
Abstract The iridocorneal endothelial syndrome manifests in three clinical types: Chandler syndrome, progressive iris atrophy, and Cogan-Reese syndrome. It is caused by the presence of abnormal corneal endothelium on the iris stroma and anterior chamber angle leading to usually unilateral, progressive iris atrophy, glaucoma, and/or corneal edema. The etiology is yet unclear. It affects mostly young adults, mostly females. Management of iridocorneal endothelial syndrome is complex: conservative and surgical, depending on the stage of the disease and intensity of present symptoms. A 30-year-old female with a medical history of the iridocorneal endothelial syndrome was reported to the Ophthalmology Department for consultation. Slit-lamp examination revealed iris atrophy and superior-nasal corectopia in the left eye. On gonioscopy, the angle was wide open in the right eye, but there were iridocorneal adhesions and incomplete angle-closure in the left eye. The patient was provided with maximum local therapy consisting of three anti-glaucoma medications. On later check-ups, the patient presented corneal edema and increased intraocular pressure. She was qualified to ExPress mini shunt trabeculectomy with mitomycin C. Two years later, a patient came to the clinic because of increased values of intraocular pressure (up to 59 mmHg), slit-lamp examination showed that the ExPress implant was congested with fragments of the corneal endothelial cells. Thanks to YAG iridotomy the implant was recanalized.
{"title":"Difficulties in Treatment of Iridocorneal Endothelial Syndrome - Case Report","authors":"Aleksandra Krasińska, J. Mamczur, Manuela Pajdowska, A. Brązert","doi":"10.2478/acb-2022-0009","DOIUrl":"https://doi.org/10.2478/acb-2022-0009","url":null,"abstract":"Abstract The iridocorneal endothelial syndrome manifests in three clinical types: Chandler syndrome, progressive iris atrophy, and Cogan-Reese syndrome. It is caused by the presence of abnormal corneal endothelium on the iris stroma and anterior chamber angle leading to usually unilateral, progressive iris atrophy, glaucoma, and/or corneal edema. The etiology is yet unclear. It affects mostly young adults, mostly females. Management of iridocorneal endothelial syndrome is complex: conservative and surgical, depending on the stage of the disease and intensity of present symptoms. A 30-year-old female with a medical history of the iridocorneal endothelial syndrome was reported to the Ophthalmology Department for consultation. Slit-lamp examination revealed iris atrophy and superior-nasal corectopia in the left eye. On gonioscopy, the angle was wide open in the right eye, but there were iridocorneal adhesions and incomplete angle-closure in the left eye. The patient was provided with maximum local therapy consisting of three anti-glaucoma medications. On later check-ups, the patient presented corneal edema and increased intraocular pressure. She was qualified to ExPress mini shunt trabeculectomy with mitomycin C. Two years later, a patient came to the clinic because of increased values of intraocular pressure (up to 59 mmHg), slit-lamp examination showed that the ExPress implant was congested with fragments of the corneal endothelial cells. Thanks to YAG iridotomy the implant was recanalized.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"56 - 60"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49283439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ronald J. Savino, M. Vázquez-Añón, K. Stefańska, J. Petitte, P. Mozdziak
Abstract Methionine is an essential amino critical to many cell functions including the synthesis of proteins. Supplementation of methionine in vivo is typically through L-methionine, DL-methionine, or a methionine hydroxy analog (MHA). The goal of this study was to compare the function of L-methionine, DL-methionine, and an MHA as a source of methionine to myoblasts in vitro. Avian myoblasts isolated from turkey embryos were plated in media containing varying concentrations of DL-methionine (DLM; 1.125 mg/mL or 0.56 mg/mL) or methionine hydroxy analog (MHA; 1.28 mg/mL or 0.64 mg/mL) as well as a methionine deficient negative control group and an L-methionine supplemented positive control group. The results of the proliferation assay exhibited cell division in the absence of methionine which was not significantly different than the positive control group. Results from the myoblast fusion assay revealed significantly greater myotube diameter between methionine supplemented groups compared to the methionine deficient negative control. The findings of this study show an ability for avian myoblasts to proliferate in the absence of methionine, the significance of which is discussed. Additionally, findings from the fusion assay suggest that DL-methionine and MHA are potential cost-effective substitutes for methionine supplementation during terminal differentiation of avian myoblasts.
{"title":"The Influence of L-Methionine, DL-Methionine, and a Methionine Hydroxy Analog on Proliferation and Differentiation Potential of Avian Myoblasts","authors":"Ronald J. Savino, M. Vázquez-Añón, K. Stefańska, J. Petitte, P. Mozdziak","doi":"10.2478/acb-2022-0012","DOIUrl":"https://doi.org/10.2478/acb-2022-0012","url":null,"abstract":"Abstract Methionine is an essential amino critical to many cell functions including the synthesis of proteins. Supplementation of methionine in vivo is typically through L-methionine, DL-methionine, or a methionine hydroxy analog (MHA). The goal of this study was to compare the function of L-methionine, DL-methionine, and an MHA as a source of methionine to myoblasts in vitro. Avian myoblasts isolated from turkey embryos were plated in media containing varying concentrations of DL-methionine (DLM; 1.125 mg/mL or 0.56 mg/mL) or methionine hydroxy analog (MHA; 1.28 mg/mL or 0.64 mg/mL) as well as a methionine deficient negative control group and an L-methionine supplemented positive control group. The results of the proliferation assay exhibited cell division in the absence of methionine which was not significantly different than the positive control group. Results from the myoblast fusion assay revealed significantly greater myotube diameter between methionine supplemented groups compared to the methionine deficient negative control. The findings of this study show an ability for avian myoblasts to proliferate in the absence of methionine, the significance of which is discussed. Additionally, findings from the fusion assay suggest that DL-methionine and MHA are potential cost-effective substitutes for methionine supplementation during terminal differentiation of avian myoblasts.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"69 - 82"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41758833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Adipose tissue secretes dozens of biologically active molecules known as adipokines or adipocytokines. Apelin receptor early endogenous ligand (ELABELA, also known as ELA or APELA) is a circulating signaling protein expressed in placental tissue that binds to apelin receptors. The first animal experimental findings suggested that the ELABELA deficiency might be responsible for the pathogenesis of preeclampsia--like symptoms, i.e., hypertension and proteinuria in mice. Exogenous ELABELA supplementation reverted preeclampsia symptoms and normalized fetal birth weight in mice. Several in vitro studies confirmed that ELABELA supplementation could improve trophoblast cell functions such as invasiveness and proliferation capacity. Thus, the ELABELA axis could serve as the target of innovative therapies for gestational complications. Nonetheless, most human studies do not support the thesis that disturbances in ELABELA secretion in early pregnancy are associated with an increased risk of preeclampsia. Therefore, it is unlikely that ELABELA could serve as a novel early marker of preeclampsia in humans. Alterations in the ELABELA secretion have also been discovered among patients with other gestational complications such as GDM and fetal growth restriction.
{"title":"ELABELA as a Marker of Gestational Complications – A Review","authors":"Rafał Sibiak","doi":"10.2478/acb-2022-0007","DOIUrl":"https://doi.org/10.2478/acb-2022-0007","url":null,"abstract":"Abstract Adipose tissue secretes dozens of biologically active molecules known as adipokines or adipocytokines. Apelin receptor early endogenous ligand (ELABELA, also known as ELA or APELA) is a circulating signaling protein expressed in placental tissue that binds to apelin receptors. The first animal experimental findings suggested that the ELABELA deficiency might be responsible for the pathogenesis of preeclampsia--like symptoms, i.e., hypertension and proteinuria in mice. Exogenous ELABELA supplementation reverted preeclampsia symptoms and normalized fetal birth weight in mice. Several in vitro studies confirmed that ELABELA supplementation could improve trophoblast cell functions such as invasiveness and proliferation capacity. Thus, the ELABELA axis could serve as the target of innovative therapies for gestational complications. Nonetheless, most human studies do not support the thesis that disturbances in ELABELA secretion in early pregnancy are associated with an increased risk of preeclampsia. Therefore, it is unlikely that ELABELA could serve as a novel early marker of preeclampsia in humans. Alterations in the ELABELA secretion have also been discovered among patients with other gestational complications such as GDM and fetal growth restriction.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"43 - 48"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45908640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ivona Travnickova, P. Hulínská, Z. Sládek, M. Skowroński, M. Machatkova
Abstract The mammalian zona pellucida (ZP) is an extracellular matrix that surrounds immature and mature oocytes and early embryos until the stage of a blastocyst and its implantation. This mini-review summarizes basic information on the ZP and its morphologic and functional changes during in vitro oocyte maturation and fertilization and in vivo pre-implantation embryo development.
{"title":"Changes of the zona pellucida patterns during oocyte maturation, fertilization and embryo development in mammals: mini-review","authors":"Ivona Travnickova, P. Hulínská, Z. Sládek, M. Skowroński, M. Machatkova","doi":"10.2478/acb-2022-0004","DOIUrl":"https://doi.org/10.2478/acb-2022-0004","url":null,"abstract":"Abstract The mammalian zona pellucida (ZP) is an extracellular matrix that surrounds immature and mature oocytes and early embryos until the stage of a blastocyst and its implantation. This mini-review summarizes basic information on the ZP and its morphologic and functional changes during in vitro oocyte maturation and fertilization and in vivo pre-implantation embryo development.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"23 - 28"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41754913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wiktoria Zgórecka, M. Ješeta, R. Procházka, C. Amorim, Kornelia Krajnik, P. Mozdziak, Wojciech Pieńskowski, M. Skowroński, W. Kranc
Abstract The in vitro culture of ovarian follicles or cumulus-oocyte complexes (COC) is used to study the factors that regulate follicular development and may have potential use in artificial reproductive technology (ART). Before ovulation, the follicle is formed by oocyte and cell populations known as granulosa cells (GCs). These cells build the internal and external mass of the follicular wall. Oocyte growth and proliferation of the surrounding cells depend on the gap junctions between the oocyte and the GCs. Maintenance of the optimal in vitro culture system allowing for preservation of follicle architecture and granulosa-oocyte interaction may be critical for success in vitro maturation of follicles. Recently many studies have focused on a culture of GCs, which have important functions related to steroidogenesis. Granulosa cells maintained in in vitro conditions exhibit stem cell properties making it important to consider in vitro culture (IVC) methods of the GC population.
{"title":"Approaches for in vitro culture of granulosa cells and ovarian follicles","authors":"Wiktoria Zgórecka, M. Ješeta, R. Procházka, C. Amorim, Kornelia Krajnik, P. Mozdziak, Wojciech Pieńskowski, M. Skowroński, W. Kranc","doi":"10.2478/acb-2022-0006","DOIUrl":"https://doi.org/10.2478/acb-2022-0006","url":null,"abstract":"Abstract The in vitro culture of ovarian follicles or cumulus-oocyte complexes (COC) is used to study the factors that regulate follicular development and may have potential use in artificial reproductive technology (ART). Before ovulation, the follicle is formed by oocyte and cell populations known as granulosa cells (GCs). These cells build the internal and external mass of the follicular wall. Oocyte growth and proliferation of the surrounding cells depend on the gap junctions between the oocyte and the GCs. Maintenance of the optimal in vitro culture system allowing for preservation of follicle architecture and granulosa-oocyte interaction may be critical for success in vitro maturation of follicles. Recently many studies have focused on a culture of GCs, which have important functions related to steroidogenesis. Granulosa cells maintained in in vitro conditions exhibit stem cell properties making it important to consider in vitro culture (IVC) methods of the GC population.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"34 - 42"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43581629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Jankowski, A. Volponi, Rafael Shinoske Siroma, Nelson Pinto, M. A. Melo, Kornelia Krajnik, J. Shibli, P. Mozdziak, M. Skowroński, M. Dyszkiewicz-Konwińska
Abstract Exosomes are a distinct type of extracellular vesicles that play a major role in intracellular transport and communication. Depending on the cell of origin, exosomes can contain diverse constituents of a cell, including DNA, RNA, lipids, metabolites, cytosolic and cell-surface proteins, playing important roles in a wide range of physiological and pathological processes. Due to these facts, they are subject of extensive research aiming at translating the knowledge into clinical approaches that are at the interface between nanomedicine and biopharmaceuticals. Their potential clinical use mostly revolves around the fields of diagnostics and drug delivery, especially important in treatment of cancer. The conventional and emerging methods of exosome isolation are either based on their physical properties (such as density and/or size) or their functions. However, the isolation approaches are still characterised by significant downsides, lacking standardisation, and ensuring purity. The review gives a critical overview on exosomes characteristics, isolation approaches and the potential that exosomes hold in developing new clinical approaches of modern medicine, highlighting the need for further research to fully grasp their potential and translate the knowledge into future therapeutic solutions.
{"title":"Current application of exosomes in medicine","authors":"M. Jankowski, A. Volponi, Rafael Shinoske Siroma, Nelson Pinto, M. A. Melo, Kornelia Krajnik, J. Shibli, P. Mozdziak, M. Skowroński, M. Dyszkiewicz-Konwińska","doi":"10.2478/acb-2022-0003","DOIUrl":"https://doi.org/10.2478/acb-2022-0003","url":null,"abstract":"Abstract Exosomes are a distinct type of extracellular vesicles that play a major role in intracellular transport and communication. Depending on the cell of origin, exosomes can contain diverse constituents of a cell, including DNA, RNA, lipids, metabolites, cytosolic and cell-surface proteins, playing important roles in a wide range of physiological and pathological processes. Due to these facts, they are subject of extensive research aiming at translating the knowledge into clinical approaches that are at the interface between nanomedicine and biopharmaceuticals. Their potential clinical use mostly revolves around the fields of diagnostics and drug delivery, especially important in treatment of cancer. The conventional and emerging methods of exosome isolation are either based on their physical properties (such as density and/or size) or their functions. However, the isolation approaches are still characterised by significant downsides, lacking standardisation, and ensuring purity. The review gives a critical overview on exosomes characteristics, isolation approaches and the potential that exosomes hold in developing new clinical approaches of modern medicine, highlighting the need for further research to fully grasp their potential and translate the knowledge into future therapeutic solutions.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"18 - 22"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42473769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wiktoria Zgórecka, A. G. Narenji, Kornelia Krajnik, P. Antosik, D. Bukowska, M. Grzesiak, R. Procházka, P. Mozdziak, M. Skowroński, W. Kranc
Abstract Several hypotheses have been proposed, relating to the potential genesis of follicular cells in the ovarian niche. Reports using mice as an experimental model have suggested that the ovaries may contain stem cells that are likely involved in the formation of new follicles in adult reproductive life. Over recent years, various types of ovarian cells have been identified and described to confirm or disprove the existence of ovarian adult stem cells. Most research is focused on granulosa cells (GCs), which are essential for follicular development and maturation of female germ cells (oocytes). GCs exhibit the features of stem cells, such as expression of stem cell markers: OCT-4, Sox-2, Nanog as well as certain markers of mesenchymal stem cells, including CD29, CD44, CD90, CD105, CD117, and CD166. Another discovery in favor of the potential stemness of GCs is their ability to transdifferentiate towards other cell lines and high telomerase (TERT) activity in dividing compartments of the follicle during its maturation.
{"title":"Follicular renewal and stemness potency of follicular cells depended of telomerase activity and TERT expression – short review","authors":"Wiktoria Zgórecka, A. G. Narenji, Kornelia Krajnik, P. Antosik, D. Bukowska, M. Grzesiak, R. Procházka, P. Mozdziak, M. Skowroński, W. Kranc","doi":"10.2478/acb-2022-0005","DOIUrl":"https://doi.org/10.2478/acb-2022-0005","url":null,"abstract":"Abstract Several hypotheses have been proposed, relating to the potential genesis of follicular cells in the ovarian niche. Reports using mice as an experimental model have suggested that the ovaries may contain stem cells that are likely involved in the formation of new follicles in adult reproductive life. Over recent years, various types of ovarian cells have been identified and described to confirm or disprove the existence of ovarian adult stem cells. Most research is focused on granulosa cells (GCs), which are essential for follicular development and maturation of female germ cells (oocytes). GCs exhibit the features of stem cells, such as expression of stem cell markers: OCT-4, Sox-2, Nanog as well as certain markers of mesenchymal stem cells, including CD29, CD44, CD90, CD105, CD117, and CD166. Another discovery in favor of the potential stemness of GCs is their ability to transdifferentiate towards other cell lines and high telomerase (TERT) activity in dividing compartments of the follicle during its maturation.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"29 - 33"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44521580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Yehia, Said Mahmoud Said, Noheer Galal Elden Rashad Ragb
Abstract One of the leading causes of death across the world is cancer. Despite massive attempts to develop efficient chemotherapy medications, there is still a significant toxicity and selectivity problem. We are looking for novel therapies and preventative strategies due to the toxicity of contemporary chemotherapy and cancer cell resistance to anticancer drugs. The structure and molecular characteristics of Na2SiO3 nanoparticles were investigated using density-functional theory calculations at the B3LYP/6-311G** level. The study looked at engineering qualities and several molecular recipes like HOMO, LUMO, and Egap in order to figure out how to arrange molecules as a powerful antioxidant, and hence the majority of the compounds are anticancer. We discovered that Na2SiO3 gel particles are responsible for antioxidant activity, implying that it can be employed as an antioxidant and anticancer for cancer prevention and treatment.
{"title":"Silica nanoparticles in targeted human cancer therapy","authors":"H. Yehia, Said Mahmoud Said, Noheer Galal Elden Rashad Ragb","doi":"10.2478/acb-2022-0002","DOIUrl":"https://doi.org/10.2478/acb-2022-0002","url":null,"abstract":"Abstract One of the leading causes of death across the world is cancer. Despite massive attempts to develop efficient chemotherapy medications, there is still a significant toxicity and selectivity problem. We are looking for novel therapies and preventative strategies due to the toxicity of contemporary chemotherapy and cancer cell resistance to anticancer drugs. The structure and molecular characteristics of Na2SiO3 nanoparticles were investigated using density-functional theory calculations at the B3LYP/6-311G** level. The study looked at engineering qualities and several molecular recipes like HOMO, LUMO, and Egap in order to figure out how to arrange molecules as a powerful antioxidant, and hence the majority of the compounds are anticancer. We discovered that Na2SiO3 gel particles are responsible for antioxidant activity, implying that it can be employed as an antioxidant and anticancer for cancer prevention and treatment.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"7 - 17"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42723165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Dujíčková, L. Olexiková, E. Kubovicova, J. Bezdíček, M. Ješeta, A. Makarevich
Abstract The aim of the study was to examine viability of cattle oocytes after cryopreservation. Oocytes after in vitro maturation (IVM) were vitrified in minimum volume on the nickel electron microscopy grids by ultra-rapid cooling technique. After warming and subsequent in vitro fertilization the presumptive zygotes were cultured to reach the stage of the blastocyst (Bl). Several devitrified oocytes were processed for electron microscopy assay. Although, embryo cleavage and Bl percentages in the vitrified group were slightly lower than in the control group (P < 0.05), the Bl total cell number (TCN), apoptosis and dead cell percentages did not differ between both groups. However, significant difference was found between day 7 (D7) and day 8 (D8) Bl in the TCN in control (108.0 vs. 90.5) and vitrified group (103.75 vs 98.14). Electron microscopy of frozen oocytes revealed slight reversible injuries in mitochondria and the smooth endoplasmic reticulum (SER), nevertheless, the development of devitrified oocytes to the Bl stage was comparable to those in fresh oocytes. In conclusion, higher proportion of slower developing Bl (D8) compared to D7 Bl may be related to the mentioned minor damages of some organelles in vitrified oocytes.
摘要本研究的目的是检测冷冻保存后牛卵母细胞的活力。体外成熟（IVM）后的卵母细胞通过超快速冷却技术在镍电子显微镜网格上以最小体积玻璃化。在加温和随后的体外受精后，将推定受精卵培养至胚泡阶段（Bl）。对几个失透的卵母细胞进行了电镜分析。尽管玻璃化组的胚胎切割和Bl百分比略低于对照组（P<0.05），但两组的Bl总细胞数（TCN）、凋亡和死细胞百分比没有差异。然而，在对照组（108.0 vs 90.5）和玻璃化组（103.75 vs 98.14）的TCN第7天（D7）和第8天（D8）Bl之间发现了显著差异。然而，冷冻卵母细胞的电子显微镜显示线粒体和滑面内质网（SER）有轻微的可逆损伤，失透卵母细胞发育到Bl期与新鲜卵母细胞相当。总之，与D7-Bl相比，发育较慢的Bl（D8）比例更高，这可能与玻璃化卵母细胞中某些细胞器的轻微损伤有关。
{"title":"Viability of bovine in vitro matured oocytes following ultra-rapid vitrification","authors":"L. Dujíčková, L. Olexiková, E. Kubovicova, J. Bezdíček, M. Ješeta, A. Makarevich","doi":"10.2478/acb-2022-0001","DOIUrl":"https://doi.org/10.2478/acb-2022-0001","url":null,"abstract":"Abstract The aim of the study was to examine viability of cattle oocytes after cryopreservation. Oocytes after in vitro maturation (IVM) were vitrified in minimum volume on the nickel electron microscopy grids by ultra-rapid cooling technique. After warming and subsequent in vitro fertilization the presumptive zygotes were cultured to reach the stage of the blastocyst (Bl). Several devitrified oocytes were processed for electron microscopy assay. Although, embryo cleavage and Bl percentages in the vitrified group were slightly lower than in the control group (P < 0.05), the Bl total cell number (TCN), apoptosis and dead cell percentages did not differ between both groups. However, significant difference was found between day 7 (D7) and day 8 (D8) Bl in the TCN in control (108.0 vs. 90.5) and vitrified group (103.75 vs 98.14). Electron microscopy of frozen oocytes revealed slight reversible injuries in mitochondria and the smooth endoplasmic reticulum (SER), nevertheless, the development of devitrified oocytes to the Bl stage was comparable to those in fresh oocytes. In conclusion, higher proportion of slower developing Bl (D8) compared to D7 Bl may be related to the mentioned minor damages of some organelles in vitrified oocytes.","PeriodicalId":18329,"journal":{"name":"Medical Journal of Cell Biology","volume":"10 1","pages":"1 - 6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49476556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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