Edina Meleg- PhD
- University of Pecs
Edina Meleg
- PhD
- University of Pecs
About
39
Publications
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Introduction
Current institution
Publications
Publications (39)
Communication among cells is vital in multicellular organisms. Various structures and mechanisms have evolved over time to achieve the intricate flow of material and information during this process. One such way of communication is through tunnelling membrane nanotubes (TNTs), which were initially described in 2004. These TNTs are membrane-bounded...
Membrane nanotubes (NTs) are dynamic communication channels connecting spatially separated cells even over long distances and promoting the transport of different cellular cargos. NTs are also involved in the intercellular spread of different pathogens and the deterioration of some neurological disorders. Transport processes via NTs may be controll...
Transient Receptor Potential Vanilloid 1 (TRPV1) and Ankyrin 1 (TRPA1) are nonselective cation channels expressed in primary sensory neurons and several other non-neuronal structures such as immune cells, keratinocytes, and vascular smooth muscle cells. They play important roles in nociception, pain processing and their chanellopathies are associat...
Membrane nanotubes (NTs) are dynamic communication channels connecting spatially separated cells even over long distances and promoting the transport of different cellular cargos. NTs are also involved in the intercellular spread of different pathogens and the deterioration of some neuro-logical disorders. Transport processes via NTs may be control...
The ionic environment within the nucleoplasm might diverge from the conditions found in the cytoplasm, potentially playing a role in the cellular stress response. As a result, it is conceivable that interactions of nuclear actin and actin-binding proteins (ABPs) with apoptosis factors may differ in the nucleoplasm and cytoplasm. The primary intrace...
Membrane nanotubes are cell protrusions that grow to tens of micrometres and functionally connect cells. Actin filaments are semi-flexible polymers, and their polymerisation provides force for the formation and growth of membrane nanotubes. The molecular bases for the provision of appropriate force through such long distances are not yet clear. Act...
Long-term cellular stress maintains high intracellular Ca2+ concentrations which ultimately initiates apoptosis. Our interest is focused on how the gelsolin (GSN) and junctional mediating and regulating Y protein (JMY) play important roles in stress response. Both of these proteins
can bind p53 and actin. We investigated using in vitro fluorescence...
Layer I of the medial entorhinal cortex (MEC) contains converging axons from several brain areas and dendritic tufts originating from principal cells located in multiple layers. Moreover, specific GABAergic interneurons are also located in the area, but their inputs, outputs, and effect on local network events remain elusive. Neurogliaform cells ar...
One of the most dangerous diseases is cancer, nearly 2 million new cancer types are diagnosed each year, worldwide, causing most of the death. Therefore, cancer is in the focus of many types of research. To prevent the proliferation and spreading of malignant cells, several compounds have been developed in chemotherapy, however, a significant propo...
The retinas of many species show regional specialisations that are evident in the differences in the processing of visual input from different parts of the visual field. Regional specialisation is thought to reflect an adaptation to the natural visual environment, optical constraints, and lifestyle of the species. Yet, little is known about regiona...
Patients surviving traumatic brain injury (TBI) face numerous neurological and neuropsychological problems significantly affecting their quality of life. Extensive studies over the past decades have investigated pharmacological treatment options in different animal models, targeting various pathological consequences of TBI. Sex and gender are known...
Gonadal hormone 17β-estradiol (E2) and its receptors are key regulators of gene transcription by binding to estrogen responsive elements in the genome. Besides the classical genomic action, E2 regulates gene transcription via the modification of epigenetic marks on DNA and histone proteins. Depending on the reaction partner, liganded estrogen recep...
The most prevalent Ca 2+-buffer proteins (CaBPs: parvalbumin-PV; calbindin-CaB; calretinin-CaR) are widely expressed by various neurons throughout the brain, including the retinal ganglion cells (RGCs). Even though their retinal expression has been extensively studied, a coherent assessment of topographical variations is missing. To examine this, w...
The most prevalent Ca2+-buffer proteins (CaBPs: parvalbumin-PV; calbindin-CaB; calretinin-CaR) are widely expressed by various neurons throughout the brain, including the retinal ganglion cells (RGCs). Even though their retinal expression has been extensively studied, a coherent assessment of topographical variations is missing. To examine this, we...
In the visual system, retinal ganglion cells (RGCs) of various subtypes encode preprocessed photoreceptor signals into a spike output which is then transmitted towards the brain through parallel feature pathways. Spike timing determines how each feature signal contributes to the output of downstream neurons in visual brain centers, thereby influenc...
Membrane nanotubes are transient long-distance connections between cells that can facilitate intercellular communication. These tethers can form spontaneously between many cell types, including cells of the immune and nervous systems. Traffic of viral proteins, vesicles, calcium ions, mRNA, miRNA, mitochondria, lysosomes and membrane proteins/raft...
Nanotubes (NTs) are thin, long membranous structures forming novel, yet poorly known communication pathways between various cell types. Key mechanisms controlling their growth still remained poorly understood. Since NT-forming capacity of immature and mature B cells was found largely different, we investigated how lipid composition and molecular or...
Tunneling nanotubes (TNTs) are long intercellular connecting structures providing a special transport route between two neighboring cells. To date TNTs have been reported in different cell types including immune cells such as T-, NK, dendritic cells, or macrophages. Here we report that mature, but not immature, B cells spontaneously form extensive...
Background
Angiogenesis is important both in normal tissue function and disease and represents a key target in lung cancer (LC) therapy. Unfortunately, the two main subtypes of non-small-cell lung cancers (NSCLC) namely, adenocarcinoma (AC) and squamous cell carcinoma (SCC) respond differently to anti-angiogenic e.g. anti-vascular endothelial growt...
In the mammalian retina dopamine (DA) plays important roles in the mechanism of light adaptation via D1 and D2 receptors. It is mainly released in a paracrine manner by a population of tyrosine hydroxylase expressing (TH+) amacrine cells (AC) and reaches virtually all retinal cell types by diffusion. Despite the paracrine release AII ACs have been...
Membrane nanotubes (NTs) are transient long-distance connections between cells that can facilitat intercellular communication. They are classified by their size as thin and thick NTs containing acti filaments and sometimes microtubules as well. These tethers form in two ways; an actin-drive protrusion grows towards a nearby cell, or cells draw out...
Dopaminergic neurons of the central nervous system are mainly found in nuclei of the midbrain and the hypothalamus that provide subcortical and cortical targets with a rich and divergent innervation. Disturbance of signaling through this system underlies a variety of deteriorating conditions such as Parkinson's disease and schizophrenia. Although r...
Membrane nanotubes (MNTs) are membrane protrusions providing transient, long-distance connections between cells that can facilitate intercellular communication and matter transport. Beside neurons, several kinds of immune cells also form nanotubes, like T, NK and myeloid cells [1]. These tethers typically form in two ways: an actin-assisted protrus...
Human adenovirus (HAdV) serotype 52 has recently been discovered in the United States in samples from human patients with gastroenteritis of unknown etiology and is suspected to be a new human enteric pathogen. The aim of the present pilot study was to investigate whether this virus is circulating in the population of Southern Hungary by screening...
Group C rotaviruses have been recognized as a cause of acute gastroenteritis in humans, cattle, and swine, although the true
epidemiologic and clinical importance of this virus in these hosts has not yet been fully established. A real-time PCR assay
based on a broadly reactive primer pair was developed and used to quantitatively determine the viral...
Picobirnaviruses (PBVs) are small, non-enveloped viruses with a bisegmented double-stranded RNA genome. Their pathogenic potential, ecology, and evolutionary features are largely unexplored. Here, we describe the molecular analysis of porcine PBVs identified in the intestinal content of dead pigs. Six of 13 positive samples were cloned and then sub...
Both infectious and non-infectious forms of acute conjunctivitis are known. Viruses, especially different types of adenoviruses are the etiological agents of infectious epidemic conjunctivitis (conjunctivitis epidemica).
The author's aims were to describe an outbreak of keratoconjunctivitis and to detect the viral agent by molecular methods in Hung...
Aim: To determine the severity and clinical characteristics of human astrovirus (HAstV) infections among hospitalized children and compare them with children infected by rotavirus. Methods: Retrospective, case-control study of astrovirus-infected and rotavirus-infected children. Astroviruses were detected in stool samples by enzyme immunoassay and/...
Group C rotaviruses are recognized enteric pathogens of humans and animals. Human group C rotaviruses have been associated with sporadic episodes and large outbreaks of gastroenteritis in children and adults but their epidemiology and ecology are still unexplored.
To collect epidemiological data on group C rotavirus infections among children with g...
Routine procedures for monitoring viruses in water samples have not been drawn up for the water-microbiology screening panel. Enteric viruses, including astroviruses, are able to persist under environmental conditions and may cause public health problems by contaminating natural and drinking water resources. The aim of this study was to detect huma...
Group A rotaviruses are the main cause of acute dehydrating diarrhea in children, responsible for high mortality in developing countries and a significant socio-economic burden associated with treating the disease in developed countries. Two rotavirus vaccine candidates predicated on either homotypic or heterotypic protection have undergone clinica...
To determine the severity and clinical characteristics of human astrovirus (HAstV) infections among hospitalized children and compare them with children infected by rotavirus.
Retrospective, case-control study of astrovirus-infected and rotavirus-infected children. Astroviruses were detected in stool samples by enzyme immunoassay and/or reverse tra...
Human astroviruses (HAstV) are the causative agents of viral gastroenteritis mainly in children worldwide. This study investigated the epidemiology and genotype diversity of HAstVs detected in children admitted to hospital with gastroenteritis in Hungary. Stool samples were collected from children with diarrhea at the Municipal "Szent László" Hospi...
Questions
Question (1)
We have valid lisence for Imaris 8.0. in a Macintosch (iMac), but we experience that absolute randomly the software freezes the machine, I mean the screen becomes black and the whole computer turns off (sometimes only the screen becomes black, but I can hear the fan working). Other programs (as eg. pyton, op.system linux/ubuntu were also intalled it this Mac). We are capable of loading the image (circa 150-200 MB), but when we try to rotate, magnify or other processess we frequently (but not always) experience the above mentioned problem. Thank your very much for your answer in advance.
