20 research outputs found

    Wellness Tourism among Seniors in Taiwan: Previous Experience, Service Encounter Expectations, Organizational Characteristics, Employee Characteristics, and Customer Satisfaction

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    This study aimed to investigate the influence of the service encounter expectations of senior customers during wellness tours on customer satisfaction. The organizational attributes of hotels, organizational characteristics and employee characteristics, were adopted as mediating variables. A total of 346 valid questionnaires were retrieved from 50 year-old and above seniors in Taiwan. The results showed that the service encounter expectations of seniors had an indirect influence on customer satisfaction and the organizational attributes mediated the service encounter expectations of seniors and customer satisfaction. The moment of truth in the interactions between service staff members and seniors represents the pivotal management implication of this study

    The Relationships between Corporate Credibility, Service Convenience, and Consumers’ Use Intentions: Toward Ticketing Apps for Low-Cost Carriers

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    This study explored behavioral models based on low-cost carrier customers’ use of a ticketing app. Technology readiness, service convenience, and corporate credibility were evaluated in the model. A total of 815 valid responses were collected from customers of Tigerair, Taiwan, who had flown from one of the two major international airports in Taiwan. With technology readiness regarded as the grouping variable, the results indicated that corporate credibility significantly affected customers’ intentions to use the app, whereas the effects of service convenience on the technology exploration, technology contradiction, and the technology insecurity groups varied. Finally, this paper presents a discussion of management implications and suggestions for future studies

    Calpain/SHP-1 Interaction by Honokiol Dampening Peritoneal Dissemination of Gastric Cancer in nu/nu Mice

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    Background: Honokiol, a small-molecular weight natural product, has previously been reported to activate apoptosis and inhibit gastric tumorigenesis. Whether honokiol inhibits the angiogenesis and metastasis of gastric cancer cells remains unknown. Methodology/Principal Findings: We tested the effects of honokiol on angiogenic activity and peritoneal dissemination using in vivo, ex vivo and in vitro assay systems. The signaling responses in human gastric cancer cells, human umbilical vascular endothelial cells (HUVECs), and isolated tumors were detected and analyzed. In a xenograft gastric tumor mouse model, honokiol significantly inhibited the peritoneal dissemination detected by PET/CT technique. Honokiol also effectively attenuated the angiogenesis detected by chick chorioallantoic membrane assay, mouse matrigel plug assay, rat aortic ring endothelial cell sprouting assay, and endothelial cell tube formation assay. Furthermore, honokiol effectively enhanced signal transducer and activator of transcription (STAT-3) dephosphorylation and inhibited STAT-3 DNA binding activity in human gastric cancer cells and HUVECs, which was correlated with the up-regulation of the activity and protein expression of Src homology 2 (SH2)-containing tyrosine phosphatase-1 (SHP-1). Calpain-II inhibitor and siRNA transfection significantly reversed the honokiol-induced SHP-1 activity. The decreased STAT-3 phosphorylation and increased SHP-1 expression were also shown in isolated peritoneal metastatic tumors. Honokiol was also capable of inhibiting VEGF generation, which could be reversed by SHP-1 siRNA transfection. Conclusions/Significance: Honokiol increases expression and activity of SPH-1 that further deactivates STAT3 pathway. These findings also suggest that honokiol is a novel and potent inhibitor of angiogenesis and peritoneal dissemination of gastric cancer cells, providing support for the application potential of honokiol in gastric cancer therapy

    Calpain/SHP-1 interaction by honokiol dampening peritoneal dissemination of gastric cancer in nu/nu mice.

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    BACKGROUND: Honokiol, a small-molecular weight natural product, has previously been reported to activate apoptosis and inhibit gastric tumorigenesis. Whether honokiol inhibits the angiogenesis and metastasis of gastric cancer cells remains unknown. METHODOLOGY/PRINCIPAL FINDINGS: We tested the effects of honokiol on angiogenic activity and peritoneal dissemination using in vivo, ex vivo and in vitro assay systems. The signaling responses in human gastric cancer cells, human umbilical vascular endothelial cells (HUVECs), and isolated tumors were detected and analyzed. In a xenograft gastric tumor mouse model, honokiol significantly inhibited the peritoneal dissemination detected by PET/CT technique. Honokiol also effectively attenuated the angiogenesis detected by chick chorioallantoic membrane assay, mouse matrigel plug assay, rat aortic ring endothelial cell sprouting assay, and endothelial cell tube formation assay. Furthermore, honokiol effectively enhanced signal transducer and activator of transcription (STAT-3) dephosphorylation and inhibited STAT-3 DNA binding activity in human gastric cancer cells and HUVECs, which was correlated with the up-regulation of the activity and protein expression of Src homology 2 (SH2)-containing tyrosine phosphatase-1 (SHP-1). Calpain-II inhibitor and siRNA transfection significantly reversed the honokiol-induced SHP-1 activity. The decreased STAT-3 phosphorylation and increased SHP-1 expression were also shown in isolated peritoneal metastatic tumors. Honokiol was also capable of inhibiting VEGF generation, which could be reversed by SHP-1 siRNA transfection. CONCLUSIONS/SIGNIFICANCE: Honokiol increases expression and activity of SPH-1 that further deactivates STAT3 pathway. These findings also suggest that honokiol is a novel and potent inhibitor of angiogenesis and peritoneal dissemination of gastric cancer cells, providing support for the application potential of honokiol in gastric cancer therapy

    Effects of honokiol on the phosphorylation of STAT-3 in gastric cancer cells, HUVECs, and tumors.

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    <p>(A) The p-STAT-3 (Tyr705) expressions in gastric cancer cells (AGS) and HUVECs treated with honokiol (HK, 10 and 20 µM) for 1 h were detected by a confocal microscope. (B) Tumors in nude mice were established for 7 days after the intraperitoneal inoculation of MKN45 cells. Mice were then injected intraperitoneally with honokiol (5 mg/kg/twice per week) for 28 days. The p-STAT-3 (Tyr705) expressions in metastatic tumors isolated from mice with or without HK treatment are shown. The p-STAT-3 (Tyr705) protein expressions, stained dark brown, were detected by immunohistochemistry. All data are presented as mean ± SEM of five independent experiments. *p<0.05 as compared with control.</p
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