Epithelial-mesenchymal transition (EMT) and cell migration are important processes in embryonic development of many tissues as well as oncogenesis. The pituitary gland is a master endocrine tissue and recent studies indicate that Sox2-expressing stem/progenitor cells actively migrate and develop this tissue during embryogenesis. Notably, although migration activity of stem/progenitor cells in t...

Periosteum provides a major source of mesenchymal progenitor cells for bone fracture repair. Combining cell-specific targeted Cox-2 gene deletion approaches with in vitro analyses of the differentiation of periosteum-derived mesenchymal progenitor cells (PDMPCs), here we demonstrate a spatial and temporal role for Cox-2 function in the modulation of osteogenic and chondrogenic differentiation o...

The role of lung epithelial stem cells in maintenance and repair of the adult lung is ill-defined, and their identity remains contentious because of the lack of definitive markers for their prospective isolation and the absence of clonogenic assays able to measure their stem/progenitor cell potential. In this study, we show that replication of epithelial-mesenchymal interactions in a previously...

The brain is an important organ that controls all sensory and motor actions, memory, and emotions. Each anatomical and physiological modulation in various brain centers, results in psychological, behavioral, and sensory-motor changes. Alcohol and addictive drugs such as opioids and amphetamines have been shown to exert a great impact on brain, specifically on the hippocampus. Emerging evidence ...

The presence of ectopic tissue in the diseased artery wall is evidence for the presence of multipotential stem cells in the vasculature. Mesenchymal stem cells were first identified in the marrow stroma, and they differentiate along multiple lineages giving rise to cartilage, bone, fat, muscle, and vascular tissue in vitro and in vivo. Transplantation studies show that marrow-derived mesenchyma...

Fibrocytes are bone marrow-derived mesenchymal progenitor cells that express markers of leukocytes, haematopoietic progenitor cells, and fibroblasts. They play a pivotal role in tissue remodelling and fibrosis in both physiologic and pathologic settings. Fibrocytes are unique in that they are capable of differentiating into fibroblasts and myofibroblasts, as well as adipocytes. In this review w...

Cultivated meat (clean meat) is an emerging yet fast growing research field and industry with a great potential to overcome the limitations of traditional cattle production. leverages technologies cell biology tissue engineering, culturing multiple types cells assembling them into structure construct mimicking muscle tissues livestock animals. A sustainable source first utmost important compone...

More than 35 years ago, the concept of vascular zones meniscus was introduced. It has been shown that blood supply is limited to peripheral 25% lateral and 30% medial meniscus. This obviously repercussions with regard healing potential tears, whether repaired or not. In general, tears extend into white-white zone, such as flaps, cleavage radial are deemed irreparable. However, several recent re...

Obesity complicates a number of diseases through mechanisms that are poorly defined. Mobilization and recruitment of progenitor cells to pathological sites is an important factor in disease progression. Here, we analyzed the influence of obesity on the systemic circulation of CD34(+) cell populations and correlated frequencies of cells displaying previously established cell marker signatures wi...