Neural tube closure is an important and necessary process during the development of the central nervous system. The formation of the neural tube structure from a flat sheet of neural epithelium requires several cell morphogenetic events and tissue dynamics to account for the mechanics of tissue deformation. Cell elongation changes cuboidal cells into columnar cells, and apical constriction then...

Hyaline cartilage is a vascular and neural tissue with scanty chondrocytes and limited regenerative ability. After some serious injuries of the cartilage, healing process will take place through the formation of fibrocartilage structures. Currently, tissue engineering and cell therapy are 2 interesting therapeutic fields dealing with regenerative medicine. In this regard, tissue&...

In chordates, formation of neural tissue from ectodermal cells requires an induction. The molecular nature of the inducer remains controversial in vertebrates. Here, using the early neural marker Otx as an entry point, we dissected the neural induction pathway in the simple embryos of Ciona intestinalis. We first isolated the regulatory element driving Otx expression in the prospective neural t...

Neural crest is induced at the junction of epidermal ectoderm and neural plate by the mutual interaction of these tissues. In previous studies, BMP4 has been shown to pattern the ectodermal tissues, and BMP4 can induce neural crest cells from the neural plate. In this study, we show that epidermally expressed Delta1, which encodes a Notch ligand, is required for the activation and/or maintenanc...

Neural tissue in developing Xenopus embryos is induced by signals from the dorsal mesoderm. Induction of anterior neural tissue could be mediated by noggin, a secreted polypeptide found in dorsal mesoderm. We show that bFGF, a known mesoderm inducer of blastula staged ectoderm, induces neural tissue from gastrula stage ectoderm. The type of neural tissue induced by bFGF from stage 10.25 ectoder...

Introduction: Assessment of peripheral nerve disorders can be classified into clinical tests such nerve conduction test, performed to examine nerve functions and Neural Tissue Tension Tests designed to find out increased mechanosensitivity of the nerve being tested. Upper Limb Neural Tissue Tension Tests (ULTT) is a good tool for assessment of early affection of the neural tissue. Purpose of St...

Multiple research groups have observed neuropathological phenotypes and molecular symptoms in vitro using induced pluripotent stem cell (iPSC)-derived neural cell cultures (i.e. patient-specific neurons and glia). However, the global differences/similarities that may exist between in vitro neural cells and their tissue-derived counterparts remain largely unknown. In this study, we compared temp...

Neural stem cells are undifferentiated cells that are located in limited areas of central nervous system. These cells have proliferation and self-renew ability and can be differentiated into neurons and glial cells. Mature nerve cells do not have proliferative ability; and due to the limited number of nerve stem cells, injuries to the nervous system are not recoverable. The purpose of this revi...

During vertebrate embryonic development, a portion of the ectoderm (outer layer) is set aside to make neural tissue. These cells initially form a ‘neural plate’, which later folds into a tube that will form the spinal cord and brain (Fig. 1). As the folding occurs, precursor cells in the neural plate are transformed into different neuronal subsets. Surrounding non-neural tissues initially polar...

Objective: Arsenic, an environmental pollutant, decreases neuronal migration as well as cellular maturation and inhibits the proliferation of neural progenitor cells. Curcumin has been described as an antioxidant and neuroprotective agent with strong therapeutic potential in some neurological disorders. Human adipose-derived stem cells (hADSCs), a source of multipotent stem cells, can self-rene...