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Topic Review
Biography
Topic Review
Ccr4–Not Complex
This entry mainly gives an overview of the structure of the Ccr4-Not complex, its major components and their enzymatic activities. In the accompanying manuscript the biological roles of the complex is discussed in detail as well as clinical conditions associa
696
17 Nov 2020
Topic Review
CD4 T Helper Cells
CD4 T helper cells, including Th1, Th2, Th17, Treg and Tfh, play a central role in orchestrating adaptive immune responses.
1.6K
16 Nov 2020
Topic Review
Adipogenesis
Adipose tissue is contemplated as a dynamic organ that plays key roles in the human body. Adipogenesis is the process by which adipocytes develop from adipose-derived stem cells to form the adipose tissue. Adipose-derived stem cells’ differentiation serves well beyond the simple goal of producing new adipocytes. Indeed, with the current immense biotechnological advances, the most critical role of adipose-derived stem cells remains their tremendous potential in the field of regenerative medicine. This entry focuses on examining the physiological importance of adipogenesis, the current approaches that are employed to model this tightly controlled phenomenon, and the crucial role of adipogenesis in elucidating the pathophysiology and potential treatment modalities of human diseases. The future of adipogenesis is centered around its crucial role in regenerative and personalized medicine.
1.7K
16 Nov 2020
Topic Review
Connective Tissue
This is an overview of the main molecular components, structural organization and main functions of the connective tissue, which is constitutively present in tissues and organs of the body. Connective tissue is known to provide structural and functional “glue” properties to other tissues. It contains cellular and molecular components that are arranged in several dynamic organizations. Connective tissue is the focus of numerous genetic and nongenetic diseases. Genetic diseases of the connective tissue belong to minority or rare diseases, but no less important than the nongenetic diseases.
1.8K
13 Nov 2020
Topic Review
Growth Hormone-Releasing Hormone
Growth hormone-releasing hormone (GHRH) is secreted primarily from the hypothalamus, but other tissues, including the lungs, produce it locally. GHRH stimulates the release and secretion of growth hormone (GH) by the pituitary and regulates the production of GH and hepatic insulin-like growth factor-1 (IGF-1). Pituitary-type GHRH-receptors (GHRH-R) are expressed in human lungs, indicating that GHRH or GH could participate in lung development, growth, and repair. The goal of thisentry is to present and critically evaluate new findings regarding growth hormone-releasing hormone (GHRH) and its actions in the settings of lung inflammation, fibrosis, and cancer. The essential, unanswered question we address is whether GHRH, as revealed by synthetic peptide probes that activate or inhibit its receptor, plays key roles in lung pathophysiology that are distinct from its effects on growth and metabolism. It provides background on the physiology of GHRH in the lung, which was elucidated using recently developed GHRH receptor peptide agonists and antagonists as mechanistic probes.
1.2K
09 Nov 2020
Topic Review
Metal Ions as Signaling Agents
Metal ions can be involved in signaling processes within the cell in both physiological and pathological conditions. Magnesium and calcium are the most recognized signaling agents among metals. Zinc, copper, and iron can also play key roles in signaling pathways. There are many systems in which changes in intra- and extra-cellular zinc and copper concentrations have been linked to important downstream events, especially in nervous signal transduction. Iron signaling is mostly related with its homeostasis. However, it is also involved in a recently discovered type of programmed cell death, ferroptosis.
1.5K
06 Nov 2020
Topic Review
Spinal Cord Injury
Spinal cord injury (SCI) is a destructive neurological and pathological state that causes major motor, sensory and autonomic dysfunctions. Its pathophysiology comprises acute and chronic phases and incorporates a cascade of destructive events such as ischemia, oxidative stress, inflammatory events, apoptotic pathways and locomotor dysfunctions. This review aims to promote the understanding of SCI pathophysiology, interrelated or interlinked multimolecular interactions and various methods of neuronal recovery i.e., neuroprotective, immunomodulatory and neuro-regenerative pathways and relevant approaches.
4.3K
06 Nov 2020
Topic Review
Microparticles in Vascular Inflammation
Microparticles (MPs) are extracellular vesicles with a size ranging from 0.1 to 1.0 μm. They carry cargo (mRNA, DNA, lipid and specific proteins) from originating cells and transfer to recipient cells, allowing cell-to-cell communication.
777
05 Nov 2020
Topic Review
Tetraspanins of extracellular vesicles
Tetraspanins are transmembrane proteins with ability to interact with each other and with other non-tetraspanin partners, building up a complex called tetraspanin web. This dynamic structure participates in many cellular processes. Although currently, the tetraspanin proteins found in extracellular vesicles are mostly applied as markers, increasing evidence points to their role in extracellular vesicle biogenesis, cargo selection, cell targeting, and cell uptake under both physiological and pathological conditions.
2.3K
02 Nov 2020
Topic Review
Mitochondria and Ageing
Declining mitochondrial function, reflected in defects in ATP synthesis and increased generation of toxic reactive oxygen species is a universal feature of natural ageing. It accompanies the other hallmarks of ageing which include progressive loss of function in multiple organs, sarcopenia and increasing maladaptive low-grade inflammation. These end in death, which is a cumulative result of loss of function, leading to either increased vulnerability to environmental hazards such as predation and disease or to failure of critical organ systems such as the heart, liver or kidney. Several processes that may contribute mechanistically to age related degeneration have been identified, including oxidative damage, accumulation of toxic protein aggregates, autoinflammatory processes, loss of stem cell populations and an increasing load of malfunctional senescent cells. Mitochondrial dysfunction has connections with each of these processes. The following is a brief overview of some of these connections.
1.3K
02 Nov 2020
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