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</script>The inflammasome is a complex of proteins that has a critical role in mounting an inflammatory response in reply to a harmful stimulus that compromises the homeostatic state of the tissue. The NLRP3 inflammasome, which is found in a wound-like environment, is comprised of three components: the NLRP3, the adaptor protein ASC and caspase-1. Interestingly, although ASC levels do not fluctuate, caspase-1 levels are elevated in both physiological and pathological conditions. Despite the observation that merely raising caspase-1 levels is sufficient to induce inflammation, the crucial question regarding the mechanism governing its expression is unexplored. We found that, in an inflammatory microenvironment, caspase-1 is regulated by NF-κB. Consistent with this association, the inhibition of caspase-1 activity parallels the effects on wound healing caused by the abrogation of NF-κB activation. Surprisingly, not only does inhibition of the NF-κB/caspase-1 axis disrupt the inflammatory phase of the wound-healing program, but it also impairs the stimulation of cutaneous epithelial stem cells of the proliferative phase. These data provide a mechanistic basis for the complex interplay between different phases of the wound-healing response in which the downstream signaling activity of immune cells can kindle the amplification of local stem cells to advance tissue repair.
Keratinocytes, 1.1 Normal biological development and functioning, Cells, Knockout, Clinical Sciences, Oncology and Carcinogenesis, Clinical sciences, Dermatitis, Dermatology, In Vitro Techniques, Biochemistry, Article, Vaccine Related, Mice, Underpinning research, Biodefense, Animals, Homeostasis, Molecular Biology, Cells, Cultured, Cell Proliferation, Mice, Knockout, Caspase 8, Wound Healing, Cultured, Biomedical and Clinical Sciences, Animal, Prevention, Inflammatory and immune system, Dermatology & Venereal Diseases, Caspase 1, NF-kappa B, Cell Biology, Stem Cell Research, Disease Models, Animal, Cellular Microenvironment, Disease Models, Stem Cell Research - Nonembryonic - Non-Human, Signal Transduction
Keratinocytes, 1.1 Normal biological development and functioning, Cells, Knockout, Clinical Sciences, Oncology and Carcinogenesis, Clinical sciences, Dermatitis, Dermatology, In Vitro Techniques, Biochemistry, Article, Vaccine Related, Mice, Underpinning research, Biodefense, Animals, Homeostasis, Molecular Biology, Cells, Cultured, Cell Proliferation, Mice, Knockout, Caspase 8, Wound Healing, Cultured, Biomedical and Clinical Sciences, Animal, Prevention, Inflammatory and immune system, Dermatology & Venereal Diseases, Caspase 1, NF-kappa B, Cell Biology, Stem Cell Research, Disease Models, Animal, Cellular Microenvironment, Disease Models, Stem Cell Research - Nonembryonic - Non-Human, Signal Transduction
| citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 72 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
