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1.
Curr Issues Mol Biol ; 44(10): 5086-5103, 2022 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-36286060

RESUMO

Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract and is characterized by recurrent chronic inflammation and mucosal damage of the gastrointestinal tract. Recent studies have demonstrated that bamboo shoot (BS) and Artemisia capillaris (AC) extracts enhance anti-inflammatory effects in various disease models. However, it is uncertain whether there is a synergistic protective effect of BS and AC in dextran sodium sulfate (DSS)-induced colitis. In the current study, we tested the combined effects of BS and AC extracts (BA) on colitis using in vivo and in vitro models. Compared with control mice, oral administration of DSS exacerbated colon length and increased the disease activity index (DAI) and histological damage. In DSS-induced colitis, treatment with BA significantly alleviated DSS-induced symptoms such as colon shortening, DAI, histological damage, and colonic pro-inflammatory marker expression compared to single extracts (BS or AC) treatment. Furthermore, we found BA treatment attenuated the ROS generation, F-actin formation, and RhoA activity compared with the single extract (BS or AC) treatment in DSS-treated cell lines. Collectively, these findings suggest that BA treatment has a positive synergistic protective effect on colonic inflammation compared with single extracts, it may be a highly effective complementary natural extract mixture for the prevention or treatment of IBD.

2.
BMC Cancer ; 21(1): 1059, 2021 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-34565336

RESUMO

BACKGROUND: Extracellular matrix metalloproteinase inducer (EMMPRIN), a cell-surface glycoprotein, is overexpressed in several cancer types. EMMPRIN induces a metastatic phenotype by triggering the production of matrix metalloproteinase proteins (MMPs) such as MMP1 and MMP2, and vascular endothelial growth factor (VEGF) in cancer cells and the surrounding stromal cells. The purpose of this study was to investigate the expression and role of EMMPRIN in osteosarcoma. METHODS: The level of EMMPRIN expression was evaluated using reverse transcriptase polymerase chain reaction (RT-PCR) in 6 tumor-derived osteosarcoma cell lines and compared with that in normal osteoblasts. To study the prognostic significance of EMMPRIN expression, immunohistochemistry was carried out in prechemotherapy biopsies of 54 patients. siRNA knockdown of EMMPRIN in SaOS-2 cells was conducted to explore the role of EMMPRIN. To study the role of EMMPRIN in tumor-stromal interaction in MMP production and invasion, co-culture of SaOS-2 cells with osteoblasts and fibroblasts was performed. Osteosarcoma 143B cells were injected into the tail vein of BALB/c mice and lung metastasis was analyzed. RESULTS: EMMRIN mRNA expression was significantly higher in 5 of 6 (83%) tumor-derived cells than in MG63 cells. 90% of specimens (50/54) stained positive for EMMPRIN by immunohistochemistry, and higher expression of EMMPRIN was associated with shorter metastasis-free survival (p = 0.023). Co-culture of SaOS-2 with osteoblasts resulted in increased production of pro-MMP2 and VEGF expression, which was inhibited by EMMPRIN-targeting siRNA. siRNA knockdown of EMMPRIN resulted in decreased invasion. EMMPRIN shRNA-transfected 143B cells showed decreased lung metastasis in vivo. CONCLUSIONS: Our data suggest that EMMPRIN acts as a mediator of osteosarcoma metastasis by regulating MMP and VEGF production in cancer cells as well as stromal cells. EMMPRIN could serve as a therapeutic target in osteosarcoma.


Assuntos
Basigina/metabolismo , Neoplasias Ósseas/metabolismo , Osteossarcoma/metabolismo , Animais , Basigina/antagonistas & inibidores , Neoplasias Ósseas/patologia , Linhagem Celular Tumoral , Técnicas de Cocultura , Progressão da Doença , Humanos , Imuno-Histoquímica , Neoplasias Pulmonares/secundário , Metaloproteinase 1 da Matriz/biossíntese , Metaloproteinase 2 da Matriz/biossíntese , Camundongos , Camundongos Endogâmicos BALB C , Invasividade Neoplásica , Osteoblastos/metabolismo , Osteossarcoma/patologia , Osteossarcoma/secundário , Intervalo Livre de Progressão , RNA Mensageiro/metabolismo , RNA Interferente Pequeno/farmacologia , Fatores de Crescimento do Endotélio Vascular/metabolismo
3.
J Manipulative Physiol Ther ; 43(4): 294-302, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32709517

RESUMO

OBJECTIVE: Prolonged sitting while working at a computer leads to poor sitting postures, which can aggravate low back pain in many individuals. We examined the intertester reliability of using the modified musculoskeletal impairment schema for classifying participants sitting at computers for prolonged times. METHODS: Fifty participants were examined independently by each therapist using a test-retest design. Each therapist assigned an musculoskeletal impairment classification upon completion of the examination. The agreement percentages and the kappa coefficient were used to evaluate intertester reliability in classifying participants with prolonged sitting. RESULTS: The percentage agreement between the 2 examiners for participants who maintained the sitting posture for prolonged times was 84%. The calculated kappa coefficient was 0.73, reflecting a substantial level of agreement. CONCLUSIONS: The present findings provide some evidence to support the classification of individuals who sit at computers for prolonged times and participants with rotation with flexion pattern would need to manage asymmetry pattern in a subclinical group.


Assuntos
Postura/fisiologia , Amplitude de Movimento Articular/fisiologia , Postura Sentada , Inquéritos e Questionários/normas , Adulto , Fenômenos Biomecânicos , Feminino , Humanos , Dor Lombar/diagnóstico , Masculino , Reprodutibilidade dos Testes
4.
Biochem Biophys Res Commun ; 497(1): 354-361, 2018 02 26.
Artigo em Inglês | MEDLINE | ID: mdl-29432737

RESUMO

The activation of signal transducer and activator of transcription 3 (STAT3) by elevated interleukin (IL) levels has been reported to regulate tumorigenesis both in vitro and in vivo. However, the clinical implication of p-STAT3 expression in colon cancer is still controversial. In this study, we evaluated the effect of STAT3 inactivation on biologic behavior of primary (Caco-2) and metastatic colon cancer cells (LoVo and SNU407) and the relation of p-STAT3 expression with the invasion of colon tumor. In vitro study, the STAT3 inhibition by siRNA and stattic treatment significantly reduced colony formation and cell migration and decreased CD133 and survivin the expression compared with a control in all three cell lines. Furthermore, primary cancer cells exhibited a marked decrease in CD133 expression and increased apoptosis compared to metastatic cells after stattic treatment. The immunohistochemical assay using clinical samples of colonic tumors with various invasion depth showed that p-STAT3 expression was inversely associated with tumor invasion (p = 0.001, hazard ratio (HR) = 0.328, 95% confidence interval (95%CI): 0.170-0.632). In conclusion, p-STAT3 may participate in the progression of the early stage of colon cancer through the up-regulation of CD133, which in turn induces survivin expression. However, the regulatory mechanism of these molecules in tumor progression in vivo is need to be more verified.


Assuntos
Antígeno AC133/metabolismo , Carcinogênese/metabolismo , Neoplasias do Colo/metabolismo , Neoplasias do Colo/patologia , Proteínas Inibidoras de Apoptose/metabolismo , Fator de Transcrição STAT3/metabolismo , Células CACO-2 , Regulação Neoplásica da Expressão Gênica , Humanos , Estadiamento de Neoplasias , Survivina , Células Tumorais Cultivadas , Regulação para Cima
5.
BMC Complement Altern Med ; 17(1): 520, 2017 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-29202825

RESUMO

BACKGROUND: Salmonella enterica serovar Typhimurium is a foodborne pathogen that triggers inflammatory responses in the intestines of humans and livestock. Colla corii asini is a traditional medicine used to treat gynecologic and chronic diseases in Korea and China. However, the antibacterial activity of Colla corii asini has been unknown. In this study, we investigated the antibacterial activity and effects of Colla corii asini extract on Salmonella typhimurium invasion. METHODS: To tested for antibacterial effects of Colla corii asini extracts, we confirmed the agar diffusion using Luria solid broth medium. Also, we determined the MIC (minimum inhibitory concentration) and the MBC (minimum bactericidal concentration) value of the Colla corii asini ethanol extract (CEE) by using two-fold serial dilution methods. We evaluated the expression of salmonella invasion proteins including SipA, SipB and SipC by using Western blot and qPCR at the concentration of CEE without inhibition of bacterial growth. In vitro and vivo, we determined the inhibitory effect of invasion of S. typhimurium on CEE by using gentamicin assay and S. typhimurium-infected mice. RESULTS: CEE significantly inhibited the growth of Salmonella typhimurium in an agar diffuse assay and had an MIC of 0.78 mg/ml and an MBC of 1.56 mg/ml. Additionally, CEE reduced Salmonella typhimurium cell invasion via the inhibition of Salmonella typhimurium invasion proteins, such as SipA, SipB and SipC. Furthermore, CEE significantly suppressed invasion in the small intestines (ilea) of mice injected with Salmonella typhimurium. CONCLUSION: These findings show that Colla corii asini exerts antibacterial activity and suppresses Salmonella typhimurium invasion in vitro and in vivo. Together, these findings demonstrate that Colla corii asini is a potentially useful therapeutic herbal medicine for treating salmonella-mediated diseases.


Assuntos
Antibacterianos/farmacologia , Gelatina/farmacologia , Salmonella typhimurium/efeitos dos fármacos , Aminoácidos/análise , Aminoácidos/química , Antibacterianos/química , Aderência Bacteriana/efeitos dos fármacos , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Gelatina/química , Humanos
6.
BMC Complement Altern Med ; 17(1): 354, 2017 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-28679372

RESUMO

BACKGROUND: Colitis is a well-known subtype of inflammatory bowel disease and is caused by diverse factors. Previous research has shown that KIOM-MA elicits anti-inflammatory and anti-allergic effects on various diseases. KIOM-MA-128, our novel herbal formula, was generated from KIOM-MA using probiotics to improve the therapeutic efficacy. We investigated whether KIOM-MA-128 has protective activity in a mouse model of acute colitis induced by dextran sodium sulfate (DSS). METHODS: Colitis was induced by DSS administered to ICR mice in drinking water. KIOM-MA-128 (125 or 250 mg/kg) was orally administered once per day. The body weights of the mice were measured daily, and colonic endoscopies were performed at 5 and 8 days. Colon length as well as histological and cytokine changes were observed at the end of drug administration. RESULTS: KIOM-MA-128 has pharmacological activity in an acute colitis model. KIOM-MA-128 reduced the loss of body weight and disease activity index (DAI) and inhibited the abnormally short colon lengths and the colonic damage in this mouse model of acute colitis. Moreover, KIOM-MA-128 suppressed pro-inflammatory cytokine expression and maintained the integrity of the tight junctions during DSS-induced colitis. CONCLUSION: The results indicated that KIOM-MA-128 protects against DSS-induced colitis in mice and suggested that this formula might be a candidate treatment for inflammatory bowel disease (IBD).


Assuntos
Anti-Inflamatórios/administração & dosagem , Colite/tratamento farmacológico , Extratos Vegetais/administração & dosagem , Plantas Medicinais/química , Animais , Anti-Inflamatórios/metabolismo , Colite/induzido quimicamente , Colite/genética , Colite/imunologia , Colo/efeitos dos fármacos , Colo/imunologia , Citocinas/genética , Citocinas/imunologia , Sulfato de Dextrana/efeitos adversos , Composição de Medicamentos , Fermentação , Humanos , Mucosa Intestinal/efeitos dos fármacos , Mucosa Intestinal/imunologia , Lacticaseibacillus rhamnosus/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos ICR , Extratos Vegetais/metabolismo , Plantas Medicinais/microbiologia , Sulfatos/efeitos adversos , Junções Íntimas/efeitos dos fármacos
7.
Biochem Biophys Res Commun ; 471(2): 309-14, 2016 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-26855135

RESUMO

Survivin has a known beneficial role in the survival of both cancer cells and normal cells. Therapies targeting survivin have been proposed as an alternative treatment modality for various tumors; however, finding the proper indication for this toxic therapy is critical for reducing unavoidable side effects. We recently observed that high survivin expression in CD133(+) cells is related to chemoresistance in Caco-2 colon cancer cells. However, the effect of survivin-targeted therapy on CD133(+) colon cancer is unknown. In this study, we investigated the roles of CD133 and survivin expression in colon cancer biology in vitro and comparatively analyzed the anticancer effects of survivin inhibitor on CD133(+) cells (ctrl-siRNA group) and small interfering RNA (siRNA)-induced CD133(-) cells (CD133-siRNA group) obtained from a single colon cancer cell line. CD133 knockdown via siRNA transfection did not change the tumorigenicity of cells, although in vitro survivin expression levels in CD133(+) cells were higher than those in siRNA-induced CD133(-) cells. The transfection procedure seemed to induce survivin expression. Notably, a significant number of CD133(-) cells (33.8%) was found in the cell colonies of the CD133-siRNA group. In the cell proliferation assay after treatment, YM155 and a combination of YM155 and 5-fluorouracil (5-FU) proved to be far more effective than 5-FU alone. A significantly increased level of apoptosis was observed with increasing doses of YM155 in all groups. However, significant differences in therapeutic effect and apoptosis among the mock, ctrl-siRNA, and CD133-siRNA groups were not detected. Survivin inhibitor is an effective treatment modality for colon cancer; however, the role of CD133 and the use of survivin expression as a biomarker for this targeted therapy must be verified.


Assuntos
Apoptose/efeitos dos fármacos , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/metabolismo , Imidazóis/administração & dosagem , Proteínas Inibidoras de Apoptose/antagonistas & inibidores , Proteínas Inibidoras de Apoptose/metabolismo , Naftoquinonas/administração & dosagem , Antineoplásicos/administração & dosagem , Células CACO-2 , Neoplasias do Colo/patologia , Relação Dose-Resposta a Droga , Humanos , Survivina , Resultado do Tratamento
8.
J Korean Med Sci ; 31(5): 709-14, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27134491

RESUMO

Influenza vaccination is an effective strategy to reduce morbidity and mortality, particularly for those who have decreased lung functions. This study was to identify the factors that affect vaccination coverage according to the results of pulmonary function tests depending on the age. In this cross-sectional study, data were obtained from 3,224 adults over the age of 40 who participated in the fifth National Health and Nutrition Examination Survey and underwent pulmonary function testing in 2012. To identify the factors that affect vaccination rate, logistic regression analysis was conducted after dividing the subjects into two groups based on the age of 65. Influenza vaccination coverage of the entire subjects was 45.2%, and 76.8% for those aged 65 and over. The group with abnormal pulmonary function had a higher vaccination rate than the normal group, but any pulmonary dysfunction or history of COPD did not affect the vaccination coverage in the multivariate analysis. The subjects who were 40-64 years-old had higher vaccination coverage when they were less educated or with restricted activity level, received health screenings, and had chronic diseases. Those aged 65 and over had significantly higher vaccination coverage only when they received regular health screenings. Any pulmonary dysfunction or having COPD showed no significant correlation with the vaccination coverage in the Korean adult population.


Assuntos
Vacinas contra Influenza/imunologia , Influenza Humana/prevenção & controle , Vacinação/estatística & dados numéricos , Adulto , Idoso , Povo Asiático , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Razão de Chances , Doença Pulmonar Obstrutiva Crônica/diagnóstico , República da Coreia , Testes de Função Respiratória
9.
J Korean Med Sci ; 31(6): 879-85, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27247496

RESUMO

Store-operated calcium (Ca(2+)) entry (SOCE) is the principal Ca(2+) entry route in non-excitable cells, including cancer cells. We previously demonstrated that Orai1 and STIM1, the molecular components of SOCE, are involved in tumorigenesis of clear cell renal cell carcinoma (CCRCC). However, a clinical relevance of Orai1 and STIM1 expression in CCRCC has been ill-defined. Here, we investigated the expression of Orai1 and STIM1 in CCRCC, and compared their expression with clinico-pathological parameters of CCRCC and the patients' outcome. Immunohistochemical staining for Orai1 and STIM1 was performed on 126 formalin fixed paraffin embedded tissue of CCRCC and western blot analysis for Orai1 was performed on the available fresh tissue. The results were compared with generally well-established clinicopathologic prognostic factors in CCRCC and patient survival. Membrane protein Orai1 is expressed in the nuclei in CCRCC, whereas STIM1 shows the cytosolic expression pattern in immunohistochemical staining. Orai1 expression level is inversely correlated with CCRCC tumor grade, whereas STIM1 expression level is not associated with tumor grade. The higher Orai1 expression is significantly associated with lower Fuhrman nuclear grade, pathologic T stage, and TNM stage and with favorable prognosis. The expression level of STIM1 is not correlated with CCRCC grade and clinical outcomes. Orai1 expression in CCRCC is associated with tumor progression and with favorable prognostic factors. These results suggest that Orai1 is an attractive prognostic marker and therapeutic target for CCRCC.


Assuntos
Carcinoma de Células Renais/diagnóstico , Carcinoma de Células Renais/patologia , Regulação Neoplásica da Expressão Gênica , Neoplasias Renais/patologia , Proteína ORAI1/metabolismo , Adolescente , Adulto , Idoso , Western Blotting , Carcinoma de Células Renais/metabolismo , Feminino , Humanos , Imuno-Histoquímica , Neoplasias Renais/metabolismo , Masculino , Pessoa de Meia-Idade , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , Proteína ORAI1/genética , Prognóstico , Estudos Retrospectivos , Molécula 1 de Interação Estromal/genética , Molécula 1 de Interação Estromal/metabolismo , Adulto Jovem
10.
Biochem Biophys Res Commun ; 463(3): 229-34, 2015 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-26002465

RESUMO

CD133, putative cancer stem cell marker, deemed to aid chemoresistance. However, this claim has been challenged recently and we previously reported that patients with CD133(+) colon cancer have benefit from 5-fluorouracil (5-FU) chemotherapy incontrast to no benefit in patients with CD133(-) cancer. To elucidate the role of CD133 expression in chemoresistance, we silenced the CD133 expression in a colon cancer cell line and determined its effect on the biological characteristics downstream. We comparatively analyzed the sequential changes of MDR1, ABCG2, AKT1 and survivin expression and the result of proliferation assay (WST-1 assay) with 5-FU treatment in CD133(+) and siRNA-induced CD133(-) cells, derived from Caco-2 colon cancer cell line. 5-FU treatment induced significantly increase of the mRNA expression of MDR1, ABCG2 and AKT1genes, but not protein level. CD133 had little to no effect on the mRNA and protein expression of these genes. However, survivin expression at mRNA and protein level were significantly increased in CD133(+) cells compared with siRNA-induced CD133-cells and Mock (not sorted CD133(+) cells) at 96 h after siRNA transfection. The cytotoxicity assay demonstrated notable increase of chemoresistance to 5-FU treatment (10 µM) in CD133(+) cells at 96 h after siRNA transfection. From this study, we conclude that CD133(+) cells may have chemoresistance to 5-FU through the mechanism which is related with survivin expression, instead of MDR1, ABCG2 and AKT1 expression. Therefore a survivin inhibitor can be a new target for effective treatment of CD133(+) colon cancer.


Assuntos
Antígenos CD/genética , Antimetabólitos Antineoplásicos/farmacologia , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/genética , Resistencia a Medicamentos Antineoplásicos , Fluoruracila/farmacologia , Glicoproteínas/genética , Proteínas Inibidoras de Apoptose/genética , Peptídeos/genética , Antígeno AC133 , Células CACO-2 , Colo/efeitos dos fármacos , Colo/metabolismo , Regulação Neoplásica da Expressão Gênica , Humanos , Interferência de RNA , RNA Interferente Pequeno/genética , Survivina , Regulação para Cima
11.
Pharm Biol ; 53(8): 1098-103, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25612775

RESUMO

CONTEXT: Chrysanthemum zawadskii var. latilobum (Asteraceae) (CZ) and Polygonum multiflorum Thunb. (Polygonaceae) (PM) have been used traditionally to treat different systemic diseases and acclaimed for various biological activities including hair growth. OBJECTIVE: This study investigates the hair restoration efficacy of selected medicinal plant extracts on nude mice. MATERIALS AND METHODS: Nude mice genetically predisposed to pattern balding were used in this study. Topical methanol extracts of CZ and PM (10 mg/mouse/d) with standardized vehicle formulation, only vehicle (propylene glycol:ethanol:dimethyl sulfoxide, 67:30:3% v/v) and Minoxidil (2%) were applied daily for 40 consecutive days. RESULTS: In our study, the maximum hair score (2.5 ± 0.29) was obtained in the CZ-treated group. Histological observation revealed a significant increase (p < 0.001) in the number of hair follicles (HF) in CZ-treated mice (58.66 ± 3.72) and Minoxidil-treated mice (40 ± 2.71). Subsequently, immunohistochemical analysis also confirmed the follicular keratinocyte proliferation by detection of BrdU-labeling, S-phase cells in Minoxidil and CZ-treated mouse follicular bulb and outer root sheaths. CONCLUSION: Our study revealed the underlying mechanism of stimulating hair growth in athymic nude mice by repair the nu/nu follicular keratin differentiation defect. Thus, the topical application of CZ may represent a novel strategy for the management and therapy of certain forms of alopecia.


Assuntos
Chrysanthemum , Folículo Piloso/efeitos dos fármacos , Folículo Piloso/crescimento & desenvolvimento , Extratos Vegetais/administração & dosagem , Plantas Medicinais , Polygonaceae , Administração Tópica , Animais , Cabelo/efeitos dos fármacos , Cabelo/crescimento & desenvolvimento , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Componentes Aéreos da Planta , Extratos Vegetais/isolamento & purificação , Resultado do Tratamento
12.
J Phys Ther Sci ; 27(4): 1195-7, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25995587

RESUMO

[Purpose] The aim of this study was to identify the effects of initial position of the hip joint with changes in the hip joint angle on the respective muscle activities of the bilateral erector spinae (ES), unilateral gluteus maximus (GM), and biceps femoris (BF) and the amount of pelvic anterior tilt during prone hip extension (PHE). [Subjects] Fifteen healthy volunteers were enrolled in this study. [Methods] The subjects performed PHE in three positions: neutral, 20°, and 45° flexed hip joint. The activities of the ES, GM, and BF were measured using surface electromyography, and kinematic values for pelvic anterior tilt were calculated using a motion capture system. [Results] There was a significant decrease in muscle activity of the contralateral ES at 45°, and an increase in the GM muscle activity and decrease in the BF muscle activity at 20°. The amount of pelvic anterior tilt was lower at 20°. [Conclusion] These results suggest that a hip flexion position of 20° would have an advantage over the other measured positions.

13.
Biochem Biophys Res Commun ; 448(1): 76-82, 2014 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-24755083

RESUMO

The intracellular Ca(2+) regulation has been implicated in tumorigenesis and tumor progression. Notably, store-operated Ca(2+) entry (SOCE) is a major Ca(2+) entry mechanism in non-excitable cells, being involved in cell proliferation and migration in several types of cancer. However, the expression and biological role of SOCE have not been investigated in clear cell renal cell carcinoma (ccRCC). Here, we demonstrate that Orai1 and STIM1, not Orai3, are crucial components of SOCE in the progression of ccRCC. The expression levels of Orai1 in tumor tissues were significantly higher than those in the adjacent normal parenchymal tissues. In addition, native SOCE was blunted by inhibiting SOCE or by silencing Orai1 and STIM1. Pharmacological blockade or knockdown of Orai1 or STIM1 also significantly inhibited RCC cell migration and proliferative capability. Taken together, Orai1 is highly expressed in ccRCC tissues illuminating that Orai1-mediated SOCE may play an important role in ccRCC development. Indeed, Orai1 and STIM1 constitute a native SOCE pathway in ccRCC by promoting cell proliferation and migration.


Assuntos
Canais de Cálcio/fisiologia , Sinalização do Cálcio/fisiologia , Carcinoma de Células Renais/patologia , Movimento Celular/fisiologia , Proliferação de Células , Neoplasias Renais/patologia , Proteínas de Membrana/fisiologia , Proteínas de Neoplasias/fisiologia , Linhagem Celular Tumoral , Humanos , Proteína ORAI1 , Molécula 1 de Interação Estromal
14.
ScientificWorldJournal ; 2014: 878162, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24695964

RESUMO

Deer antlers are the only mammalian appendage capable of regeneration. We aimed to investigate the effect of red deer antler extract in regulating hair growth, using a mouse model. The backs of male mice were shaved at eight weeks of age. Crude aqueous extracts of deer antler were prepared at either 4 °C or 100 °C and injected subcutaneously to two separate groups of mice (n = 9) at 1 mL/day for 10 consecutive days, with water as a vehicle control group. The mice skin quantitative hair growth parameters were measured and 5-bromo-2-deoxyuridine was used to identify label-retaining cells. We found that, in both the 4 °C and the 100 °C deer antler aqueous extract-injection groups, the anagen phase was extended, while the number of BrdU-incorporated cells was dramatically increased. These results indicate that deer antler aqueous extract promotes hair growth by extending the anagen phase and regulating cell proliferation in the hair follicle region.


Assuntos
Chifres de Veado/química , Produtos Biológicos/farmacologia , Proliferação de Células , Folículo Piloso/efeitos dos fármacos , Animais , Folículo Piloso/citologia , Folículo Piloso/fisiologia , Camundongos
15.
Biochem Biophys Res Commun ; 436(1): 104-9, 2013 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-23726916

RESUMO

Chemotherapy frequently results in neurocognitive deficits that include impaired learning and memory. Thus, it is important to prevent or ameliorate the persistence of cognitive impairment. Compound K was employed to examine the ameliorating effect on chronic treatment with cyclophosphamide. Eight week-old ICR mice were given 80 mg/kg cyclophosphamide, cyclophosphamide combined with compound K (2.5, 5 and 10 mg/kg) or saline injections once per week for 4 weeks. Passive avoidance test and Y maze were used to evaluate memory and learning ability. Immunohistochemical staining for progenitor cell and immature neurons was used to assess changes in neurogenesis. Compound K (10 mg/kg) is able to ameliorate the decrease of neurogenesis in the hippocampus caused by cyclophosphamide. These results suggest that compound K might be a potential strategy to ameliorate or repair the disrupted hippocampal neurogenesis induced by the side effect of chemotherapy agent.


Assuntos
Antineoplásicos/efeitos adversos , Transtornos Cognitivos/tratamento farmacológico , Ciclofosfamida/efeitos adversos , Ginsenosídeos/farmacologia , Animais , Antineoplásicos/farmacologia , Transtornos Cognitivos/induzido quimicamente , Ciclofosfamida/farmacologia , Modelos Animais de Doenças , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Masculino , Aprendizagem em Labirinto , Memória/efeitos dos fármacos , Camundongos , Camundongos Endogâmicos ICR , Neurônios/efeitos dos fármacos , Neurônios/metabolismo , Células-Tronco/citologia , Fatores de Tempo
16.
Tohoku J Exp Med ; 229(4): 301-9, 2013 04.
Artigo em Inglês | MEDLINE | ID: mdl-23615455

RESUMO

Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are potentially malignant with variable biologic behavior that originates from neuroendocrine cells of digestive tract. Recently, the existence of cancer stem cells (CSC) was demonstrated in tumors of gastrointestinal tract. CD133 is a transmembrane glycoprotein that serves as a CSC marker in various malignancies. However, the expression of CD133 in neuroendocrine neoplasms (NEN) of digestive tract has not been studied. We evaluated tissue expression of CD133 by immunohistochemistry in 90 NENs of digestive tract with their matched non-neoplastic mucosa including stomach (n=15), small intestine (n=7), appendix (n=3), colon (n=8), rectum (n=41), pancreas (n=2), gallbladder (n=4) and liver (n=10). Tumors were divided according to 2010 WHO classification. CD133 was expressed in 30.3% (17/56) of well-differentiated neuroendocrine tumors (NET), 26.1% (6/23) of poorly-differentiated neuroendocrine carcinomas (NEC) and 63.6% (7/11) of mixed adenoneuroendocrine carcinoma (MANECs). MANEC refers to existence of both adenocarcinoma and NEC together, each one comprising at least 30% of the tumor. CD133 was expressed in cytoplasm, luminal-side of cell membrane, or both and the staining pattern correlated with tumor growth pattern. CD133 expression was not significantly correlated with tumor grade, site, expression of neuroendocrine markers (chromogranin-A and synaptophysin) and patients' survival. Thus, CD133 expression may lack prognostic significance in GEP-NETs. Importantly, CD133 was not detectable in non-neoplastic neuroendocrine cells of digestive system including pancreatic islets. In conclusion, CD133 is expressed in poorly-differentiated NECs and well-differentiated NETs of the digestive tract.


Assuntos
Antígenos CD/metabolismo , Biomarcadores Tumorais/metabolismo , Neoplasias do Sistema Digestório/metabolismo , Glicoproteínas/metabolismo , Células-Tronco Neoplásicas/metabolismo , Tumores Neuroendócrinos/metabolismo , Peptídeos/metabolismo , Antígeno AC133 , Neoplasias do Sistema Digestório/patologia , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Tumores Neuroendócrinos/patologia , República da Coreia
17.
J Orthop Sci ; 18(1): 137-44, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22996814

RESUMO

BACKGROUND: Intramuscular hemangiomas (IMHs) are benign vascular tumors of deep soft tissue characterized by endothelial cell (EC) proliferation. The purpose of this study was to isolate ECs from IMH, characterize their angiogenic phenotype and functional characteristics, and search for a possible signaling pathway related to IMH development. METHODS: EC Isolation from IMH was performed by digestion, filtration, washing, incubation, and purification in sequence. Tie2 expression was compared between ECs from IMH and controls using reverse transcriptase polymerase chain reaction (RT-PCR). Cell invasion and proliferation assays were used to analyze functional responses of ECs to angiopoietin 1 (Ang1) and vascular endothelial growth factor (VEGF). Expression of downstream targets was analyzed using Western blot analysis. RESULTS: Isolated ECs showed typical cobblestone appearance under light microscopy and formed capillary-like tubular structures using Matrigel tube-forming assay. RT-PCR of isolated ECs from six patients showed increased expression of Tie2 and VEGF receptor 1 (VEGFR1) compared with control ECs. Tie2 activation by Ang1 compared with VEGFR1 by VEGF resulted in increased EC migration and proliferation. Western blot analysis showed increased Tie2 expression in hemangioma samples compared with normal ECs. Phosphorylated Akt and phosphorylated forkhead box O1 (FOXO1) expression was observed in hemangioma samples only. CONCLUSION: EC isolation from IMH could be a useful tool for further research. These results suggest that increased Tie2 expression, via Akt-FOXO1 pathway activation, may play an important role in IMH pathogenesis.


Assuntos
DNA de Neoplasias/genética , Endotélio Vascular/patologia , Regulação Neoplásica da Expressão Gênica , Hemangioma/patologia , Neoplasias Musculares/patologia , Receptor TIE-2/genética , Adolescente , Adulto , Western Blotting , Movimento Celular , Proliferação de Células , Criança , Endotélio Vascular/metabolismo , Feminino , Hemangioma/genética , Hemangioma/metabolismo , Humanos , Imuno-Histoquímica , Masculino , Neoplasias Musculares/genética , Neoplasias Musculares/metabolismo , Neovascularização Patológica/genética , Neovascularização Patológica/metabolismo , Neovascularização Patológica/patologia , Receptor TIE-2/biossíntese , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Transdução de Sinais , Células Tumorais Cultivadas , Adulto Jovem
18.
World J Microbiol Biotechnol ; 29(12): 2429-36, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23918632

RESUMO

Esteya vermicola, an endoparasitic fungus of Bursaphelenchus xylophilus, the pinewood nematode (PWN), exhibits great potential as a biological control agent against this nematode. E. vermicola produces blastospores in liquid media and aerial conidia on solid media. The agent was mass-produced using two kinds of culture media: S (50 % wheat bran and 50 % pine wood powder), L (0.5 g wheat bran and 0.5 g pinewood powder in 200 ml of potato dextrose broth), and two controls: SC (potato dextrose agar), LC (potato dextrose broth). Yields, multiple stress tolerance, storage life, new generation conidial number, and PWN mortality rates of the spores were measured in each of these four media and compared. The spore yields, new generation conidial number, and nematode mortality rates of blastospores were higher than those of conidia. Nevertheless, the conidia had a higher germination rate than the blastospores during the storage process and multiple stress treatments. Considering the number of spores surviving from the process of the storage and multiple stress treatments per unit of mass media, the blastospores from L survived most. Comprehensive analysis indicates that the L culture medium is the most optimal medium for mass production relatively.


Assuntos
Ascomicetos/fisiologia , Esporos Fúngicos/fisiologia , Tylenchida/microbiologia , Animais , Meios de Cultura , Fermentação , Pinus/parasitologia , Doenças das Plantas/parasitologia , Estresse Fisiológico , Tylenchida/crescimento & desenvolvimento , Madeira/parasitologia
19.
Artigo em Inglês | MEDLINE | ID: mdl-36981947

RESUMO

The purpose of this study was to investigate the relationship between diet quality and periodontal disease, in adults aged ≥40 years, using data from the 7th (2016-2018) Korea National Health and Nutrition Survey (KNHANES), representing South Koreans. The subjects of this study were 7935 people aged ≥40 years, who responded to the items in the Korea Healthy Eating Index (KHEI) and underwent periodontal examination. Complex sample univariate and multivariate logistic regression analyses were conducted, to analyze the relationship between the diet quality and periodontal disease. The group with a low diet quality for energy intake balance, showed a higher risk of periodontal disease than the group with a high diet quality for energy intake balance, and it was confirmed that the diet quality in adults aged ≥40 years was related to periodontal disease. Therefore, regular diet evaluations, and the counseling of gingivitis and periodontitis patients by dental experts, will have a positive effect on the restoration and improvement of periodontal health in adults.


Assuntos
Gengivite , Doenças Periodontais , Periodontite , Adulto , Humanos , Doenças Periodontais/epidemiologia , Dieta , República da Coreia/epidemiologia , Inquéritos Nutricionais
20.
Food Sci Biotechnol ; 32(14): 2165, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37860737

RESUMO

[This corrects the article DOI: 10.1007/s10068-017-0235-7.].

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