Epidermal growth factor receptor(EGFR)signaling has become an importanttarget for drug development becauseEGFR signaling enhances tumor cell proliferation,migration,and invasion and inhibits apoptosis.However,theresul...Epidermal growth factor receptor(EGFR)signaling has become an importanttarget for drug development becauseEGFR signaling enhances tumor cell proliferation,migration,and invasion and inhibits apoptosis.However,theresults of clinical trials using EGFR inhibitors in patients with solid tumors have been disappointing.Here,wereport a protective effect of the EGFR inhibitors AG1478 and PD153035 against cell death induced by acute hy-poxia,which contrasts with their proapoptotic effects under normoxia.Under hypoxic conditions,both agents re-展开更多
Some researches to facilitate wound healing by using electrical stimulation are based on electric current stimulation,which may cause secondary damage and the imbalance of the microenvironment in vivo.In this study,al...Some researches to facilitate wound healing by using electrical stimulation are based on electric current stimulation,which may cause secondary damage and the imbalance of the microenvironment in vivo.In this study,alternating capacitive electric field(ACEF)was applied via a self-designed system so as to avoid direct contact with cells and to maintain stable microenvironment for cell growth.The influences of 58 mV/mm ACEFs with various frequencies of 10,60 and 110 Hz on epidermal cells,fibroblasts and macrophages which involve in wound healing were comprehensively explored.The results suggested that ACEFs of 10,60 and 110 Hz all significantly promoted the proliferation of human dermal fibroblasts(HDFs)and human epidermal keratinocyte cell line(HaCaT)cells,and 60 Hz ACEF furtherly accelerated the migration of these two kinds of cells.Moreover,ACEFs of all different studied frequencies facilitated M2-type polarization of macrophages,and YAP/TAZ expression of macrophages were enhanced under the stimulations of 10 and 60 Hz ACEFs.The enhancements in cell activity,migration rate and M2-type polarizability indicated that 58 mV/mm ACEFs especially at 60 Hz possessing potentially affirmative applications for wound healing without the risks of secondary damage and microenvironment imbalance.展开更多
文摘Epidermal growth factor receptor(EGFR)signaling has become an importanttarget for drug development becauseEGFR signaling enhances tumor cell proliferation,migration,and invasion and inhibits apoptosis.However,theresults of clinical trials using EGFR inhibitors in patients with solid tumors have been disappointing.Here,wereport a protective effect of the EGFR inhibitors AG1478 and PD153035 against cell death induced by acute hy-poxia,which contrasts with their proapoptotic effects under normoxia.Under hypoxic conditions,both agents re-
基金National Natural Science Foundation of China(NSFC)Research Grants(61871014,52072015,31971238,52071008,U20A20390,11827803)it as also supported by National Key R&D Program of China(2017YFC0108505,2017YFC0108500)Beijing Natural Science Foundation(7191006).
文摘Some researches to facilitate wound healing by using electrical stimulation are based on electric current stimulation,which may cause secondary damage and the imbalance of the microenvironment in vivo.In this study,alternating capacitive electric field(ACEF)was applied via a self-designed system so as to avoid direct contact with cells and to maintain stable microenvironment for cell growth.The influences of 58 mV/mm ACEFs with various frequencies of 10,60 and 110 Hz on epidermal cells,fibroblasts and macrophages which involve in wound healing were comprehensively explored.The results suggested that ACEFs of 10,60 and 110 Hz all significantly promoted the proliferation of human dermal fibroblasts(HDFs)and human epidermal keratinocyte cell line(HaCaT)cells,and 60 Hz ACEF furtherly accelerated the migration of these two kinds of cells.Moreover,ACEFs of all different studied frequencies facilitated M2-type polarization of macrophages,and YAP/TAZ expression of macrophages were enhanced under the stimulations of 10 and 60 Hz ACEFs.The enhancements in cell activity,migration rate and M2-type polarizability indicated that 58 mV/mm ACEFs especially at 60 Hz possessing potentially affirmative applications for wound healing without the risks of secondary damage and microenvironment imbalance.
