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  • Author: Patrycja Sujka-Kordowska x
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The Most Important Angiogenic Growth Factors Influencing the Development and Function of Blood Vessels - in the Context of Coronary Artery Bypass Grafting (CABG)

Summary

Currently available approaches for treating patients with ischemic heart disease include medical therapy or coronary revascularization by surgical procedures, like coronary artery bypass grafting (CABG). Bypass grafting often provides dramatic relief from the symptoms of myocardial ischemia. However, a significant number of patients are not candidates for these kind of treatment or achieve incomplete revascularization. Hence, an alternative treatment strategy such as therapeutic angiogenesis has emerged as a new method for patients with inoperable coronary artery disease. Recently it has been demonstrated that angiogenic growth factors, like vascular endothelial growth factor or fibroblast growth factor, can improve myocardial perfusion and function.

Open access
Selected Aspects of Angiogensis in Haematological Malignancies

Summary

It is well established that angiogenesis is necessary in solid tumours development. Interesingly, the role of angiogensis in haematological malignancies has been also recognized. Recent publicationts indicate that microvessel density in bone marrow and angiogenic factors like endoglin, placental growth factor and cyclooxygenase 1 are increased in lymphoproliferative disorders and suggest that angiogensis is a part of pathomechanism of these malignancies. However, it has not been identified how angiogenesis can be involved in progression of haematological disorders. There is a strong need for further investigations in this area, since antiangiogenic therapy is a potential adjunct to conventional therapy of lymphoproliferative disorders.

Open access
Genes involved in angiogenesis and circulatory system development are differentially expressed in porcine epithelial oviductal cells during long-term primary in vitro culture – a transcriptomic study

Abstract

An oviduct is an essential organ for gamete transport, oocyte maturation, fertilization, spermatozoon capacitation and early embryo development. The epithelium plays an important role in oviduct functioning. The products of secretory cells provide an optimal environment and influence gamete activities and embryonic development. The oviduct physiology changes during the female cycle, thus, the ratio of the secreted molecules in the oviduct fluid differs between phases. In this study, a differential gene expression in porcine oviduct epithelial cells was examined during the long-term primary in vitro culture. The microarray expression analysis revealed 2552 genes, 1537 of which were upregulated and 995 were downregulated after 7 days of culture, with subsequent changes in expression during 30 day-long culture. The obtained genes were classified into 8 GO BP terms, connected with angiogenesis and circulatory system development, extracted by DAVID software. Among all genes, 10 most up-regulated and 10 most down-regulated genes were selected for further investigation. Interactions between genes were indicated by STRING software and REACTOME FIViz application to the Cytoscape 3.6.0 software. Most of the genes belonged to more than one ontology group. Although studied genes are mostly responsible for angiogenesis and circulatory system development, they can also be found to be expressed in processes connected with fertilization and early embryo development. The latter function is focused on more, considering the fact that these genes were expressed in epithelial cells of the fallopian tube which is largely responsible for reproductive processes.

Open access
Genes regulating biochemical pathways of oxygen metabolism in porcine oviductal epithelial cells during long-term IVC

Abstract

Oxygen metabolism has an important role in the normal functioning of reproductive system, as well as the pathogenesis of female infertility. Oxidative stress seems to be responsible for the initiation or development of reproductive organ diseases, including polycystic ovary syndrome, endometriosis, preeclampsia, etc. Given the important role of maintaining balance between the production of ROS and antioxidant defence in the proper functioning of reproductive system, in the present study we aimed to analyse the expression of genes related to oxygen metabolism in porcine oviductal epithelial cells during long-term in vitro culture. The oviducts were collected from 45 crossbred gilts at the age of approximately nine months that displayed at least two regular oestrous cycles. The oviductal endothelial cells were isolated by enzymatic digestion to establish long-term primary cultures. Gene expression changes between 7, 15 and 30 daysof culturewere analysed with the use ofwhole transcriptome profiling by Affymetrix microarrays. The most of the “cellular response to oxidative stress” genes were upregulated. However, we did not observe any main trend in changes within the “cellular response to oxygen-containing compound” ontology group, where the gene expression levels were changed in various manner.

Running title: Oxygen metabolism in porcine oviductal epithelial cells

Open access