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Induction of apoptosis by methanol extracts of Ficus carica L. in FaDu human hypopharynx squamous carcinoma cells Ficus carica L.甲醇提取物诱导FaDu人下咽鳞癌细胞凋亡
Pub Date : 2020-09-30 DOI: 10.11620/ijob.2020.45.3.99
S. Lee, B. Park, C. Kim
Ficus carica L. (fig ) is one of the first cultivated crops and is as old as humans. This plant has been extensively used as a traditional medicine for treating diseases, such as cough, indigestion, nutritional anemia, and tuberculosis. However, the physiological activity of fig leaves on oral cancer is as yet unknown. In this study, we investigated the anticancer effect of methanol extracts of Ficus carica (MeFC) and the mechanism of cell death in human FaDu hypopharyngeal squamous carcinoma cells. MeFC decreased the viability of oral cancer (FaDu) cells but did not affect the viability of normal (L929) cells, as determined by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay and Live and Dead assay. In addition, MeFC induced apoptosis through the proteolytic cleavage of procaspase-3, -9, poly (ADP-ribose) polymerase (PARP), downregulation of Bcl-2, and upregulation of Bax, as determined by 4′,6-diamidino-2-phenylindole dihydrochloride staining and western blot analysis. Moreover, a concentration of MeFC without cytotoxicity (0.25 mg/mL) significantly suppressed colony formation, a hallmark of cancer development, and completely inhibited the colony formation at 1 mg/mL. Collectively, these results suggest that MeFC exhibits a potent anticancer effect by suppressing the growth of oral cancer cells and colony formation via caspase- and mitochondrial-dependent apoptotic pathways in FaDu human hypopharyngeal squamous carcinoma cells. Therefore, the methanol extract of Ficus carcica leaves provide a natural chemotherapeutic drug for human oral cancer.
Ficus carica L.(无花果)是最早种植的作物之一,与人类一样古老。这种植物被广泛用作治疗疾病的传统药物,如咳嗽、消化不良、营养性贫血和结核病。然而,无花果叶对口腔癌的生理活性尚不清楚。在本研究中,我们研究了Ficus carica甲醇提取物(MeFC)对人FaDu下咽鳞癌细胞的抗癌作用和细胞死亡机制。通过3-[4,5-二甲基噻唑-2-酰基]-2,5-二苯基溴化四唑试验和活与死试验确定,MeFC降低了口腔癌(FaDu)细胞的活力,但不影响正常(L929)细胞的活力。此外,通过4′,6-二氨基苯基吲哚二盐酸染色和western blot分析,MeFC通过procaspase-3, -9,聚(adp -核糖)聚合酶(PARP)的蛋白水解裂解、Bcl-2的下调和Bax的上调诱导细胞凋亡。此外,无细胞毒性的MeFC浓度(0.25 mg/mL)显著抑制了集落形成(癌症发展的标志),并在1 mg/mL时完全抑制了集落形成。总之,这些结果表明,MeFC通过抑制口腔癌细胞的生长和FaDu人下咽鳞癌细胞中caspase依赖性和线粒体依赖性凋亡途径的集落形成,显示出强大的抗癌作用。因此,无花果叶甲醇提取物为人类口腔癌提供了一种天然的化疗药物。
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引用次数: 0
Flavonoids as anti-inflammatory and neuroprotective agents 类黄酮作为抗炎和神经保护剂
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.33
Heesu Lee, B. Selvaraj, K. Yoo, S. Ko
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引用次数: 4
Homer2 regulates amylase secretion via physiological calcium oscillations in mouse parotid gland acinar cells Homer2通过小鼠腮腺腺泡细胞的生理钙振荡调节淀粉酶分泌
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.58
Namju Kang, J. Y. Kang, D. Shin, Yu-Mi Yang
The salivary glands secrete saliva, which plays a role in the maintenance of a healthy oral environment. Under physiological conditions, saliva secretion within the acinar cells of the gland is regulated by stimulation of specific calcium (Ca 2+ ) signaling mechanisms such as increases in the intracellular Ca 2+ concentration ([Ca 2+ ] i ) via store-operated Ca 2+ entry, which involves components such as Orai1, transient receptor potential (TRP) canonical 1, stromal interaction molecules, and inositol 1,4,5-triphosphate (IP 3 ) receptors (IP 3 Rs). Homer proteins are scaffold proteins that bind to G protein-coupled receptors, IP 3 Rs, ryanodine receptors, and TRP channels. However, their exact role in Ca 2+ signaling in the salivary glands remains unknown. In the present study, we investigated the role of Homer2 in Ca 2+ signaling and saliva secretion in parotid gland acinar cells under physiological conditions. Deletion of Homer2 (Homer2 −/− ) markedly decreased the amplitude of [Ca 2+ ] i oscillations via the stimulation of carbachol, which is physiologically concentrated in parotid acinar cells, whereas the frequency of [Ca 2+ ] i oscillations showed no difference between wild-type and Homer2 −/− mice. Homer2 −/− mice also showed a significant decrease in amylase release by carbachol in the parotid gland in a dose-dependent manner. These results suggest that Homer2 plays a critical role in maintaining [Ca 2+ ] i concentration and secretion of saliva in mouse parotid gland acinar cells.
唾液腺分泌唾液,这在维持健康的口腔环境中起着重要作用。在生理条件下,腺体腺泡细胞内的唾液分泌受特定钙(ca2 +)信号机制的刺激调节,如通过储存操作的ca2 +进入细胞内ca2 +浓度([ca2 +] i)的增加,这涉及到Orai1、瞬时受体电位(TRP)规范1、基质相互作用分子和肌醇1,4,5-三磷酸(ip3)受体(ip3rs)等成分。Homer蛋白是与G蛋白偶联受体、ip3rs、ryanodine受体和TRP通道结合的支架蛋白。然而,它们在唾液腺ca2 +信号传导中的确切作用尚不清楚。在本研究中,我们研究了在生理条件下,Homer2在腮腺腺泡细胞ca2 +信号传导和唾液分泌中的作用。Homer2 (Homer2−/−)的缺失通过刺激carbachol显著降低了[ca2 +] i振荡的振幅,而[ca2 +] i振荡的频率在野生型和Homer2−/−小鼠之间没有差异。Homer2−/−小鼠腮腺中碳乙醇释放的淀粉酶也呈剂量依赖性显著减少。这些结果表明,Homer2在维持小鼠腮腺腺泡细胞[ca2 +] i浓度和唾液分泌中起关键作用。
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引用次数: 1
Change in fibrinogen levels and severe postoperative bleeding in cardiac surgery 心脏手术中纤维蛋白原水平变化与严重术后出血
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.51
Eun-Jung Kim, Joo-Yun Kim, H. Kim, Boo-Young Hwang, Ah-Reum Cho, Young-Hoon Jung, S. Baek, Jeong-Min Hong
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引用次数: 0
The role of lysophosphatidic acid receptor 1 in inflammatory response induced by lipopolysaccharide from Porphyromonas gingivalis in human periodontal ligament stem cells 溶血磷脂酸受体1在牙龈卟啉单胞菌脂多糖诱导的人牙周韧带干细胞炎症反应中的作用
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.42
Dong Hee Kim, Eun Jin Seo, G. Tigyi, B. Lee, I. Jang
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引用次数: 2
Short-chain fatty acids, including acetate, propionate, and butyrate, elicit differential regulation of intracellular Ca2+ mobilization, expression of IL-6 and IL-8, and cell viability in gingival fibroblast cells 短链脂肪酸,包括醋酸酯、丙酸酯和丁酸酯,可引起牙龈成纤维细胞内Ca2+动员、IL-6和IL-8表达和细胞活力的差异调节
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.64
So Hui Kim, Min Seuk Kim
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引用次数: 0
Genome-based identification of strain KCOM 1265 isolated from subgingival plaque at the species level 龈下菌斑分离株KCOM 1265的基因组鉴定
Pub Date : 2020-06-30 DOI: 10.11620/ijob.2020.45.2.70
Soon‐Nang Park, Y. Lim, J. Kook
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引用次数: 0
Implications of specific gene expression patterns in enamel knot in tooth development 牙釉质结在牙齿发育中特定基因表达模式的意义
Pub Date : 2020-03-30 DOI: 10.11620/ijob.2020.45.1.25
Tae-Young Kim, Sanjiv Neupane, Y. P. Aryal, Eui-Seon Lee, Ji-Youn Kim, Jo-Young Suh, Youngkyun Lee, Wern-Joo Sohn, S. An, J. Ha, Chang-Hyeon An, Jae-Young Kim
Enamel knot (EK)—a signaling center—refers to a transient morphological structure comprising epithelial tissue. EK is believed to regulate tooth development in early organogenesis without its own cellular alterations, including proliferation and differentiation. EKs show a very simple but conserved structure and share functions with teeth of recently evolved vertebrates, suggesting conserved signaling in certain organs, such as functional teeth, through the course of evolution. In this study, we examined the expression patterns of key EK-specific genes including Dusp26 , Fat4, Meis2, Sln , and Zpld1 during mice embryogenesis. Expression patterns of these genes may reveal putative differentiation mechanisms underlying tooth morphogenesis.
釉质结(EK)是一种信号中心,是指由上皮组织组成的瞬时形态结构。EK被认为在早期器官发生时调节牙齿发育,而没有自身的细胞改变,包括增殖和分化。ek显示出一个非常简单但保守的结构,并与最近进化的脊椎动物的牙齿共享功能,这表明在进化过程中某些器官(如功能性牙齿)的保守信号。在这项研究中,我们检测了小鼠胚胎发育过程中关键的ek特异性基因Dusp26、Fat4、Meis2、Sln和Zpld1的表达模式。这些基因的表达模式可能揭示牙齿形态发生的分化机制。
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引用次数: 1
Malignant transformation of oral lichen planus and related genetic factors 口腔扁平苔藓的恶性转化及相关遗传因素
Pub Date : 2020-03-30 DOI: 10.11620/ijob.2020.45.1.1
E. C. Hwang, Se-Young Choi, Jeong Hee Kim
Oral lichen planus (OLP) is a chronic inflammatory disease observed in approximately 0.5–2.2% of the population, and it is recognized as a premalignant lesion that can progress into oral squamous cell carcinoma (OSCC). The rate of malignant transformation is approximately 1.09–2.3%, and the risk factors for malignant transformation are age, female, erosive type, and tongue site location. Malignant transformation of OLP is likely related to the low frequency of apoptotic phenomena. Therefore, apoptosis-related genetic factors, like p53, BCL-2, and BAX are reviewed. Increased p53 expression and altered expression of BCL-2 and BAX were observed in OLP patients, and the malignant transformation rate in these patients was relatively higher. The involvement of microRNA (miRNA) in the malignant transformation of OLP is also reviewed. Because autophagy is involved in cell survival and death through the regulation of various cellular processes, autophagy-related genetic factors may function as factors for malignant transformation. In OLP, decreased levels of ATG9B mRNA and a higher expression of IGF1 were observed, suggesting a reduction in cell death and autophagic response. Activated IGF1-PI3K/AKT/mTor cascade may play an important role in a signaling pathway related to the malignant transformation of OLP to OSCC. Recent research has shown that miRNAs, such as miR-199 and miR-122, activate the cascade, increasing the prosurvival and proproliferative signals.
口腔扁平苔藓(OLP)是一种慢性炎症性疾病,约占人口的0.5-2.2%,被认为是一种可进展为口腔鳞状细胞癌(OSCC)的癌前病变。恶性转化率约为1.09-2.3%,发生恶性转化的危险因素有年龄、女性、糜烂类型、舌部部位等。OLP的恶性转化可能与细胞凋亡现象的低频率有关。因此,本文对凋亡相关的遗传因子如p53、BCL-2、BAX等进行综述。OLP患者中p53表达升高,BCL-2、BAX表达改变,其恶性转化率较高。本文也对microRNA在OLP恶性转化中的作用进行了综述。由于自噬通过调节多种细胞过程参与细胞的生存和死亡,自噬相关的遗传因素可能作为恶性转化的因素发挥作用。在OLP中,观察到ATG9B mRNA水平降低,IGF1表达升高,表明细胞死亡和自噬反应减少。激活的IGF1-PI3K/AKT/mTor级联可能在OLP向OSCC恶性转化的信号通路中发挥重要作用。最近的研究表明,miR-199和miR-122等mirna可激活该级联,增加促生存和促增殖信号。
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引用次数: 1
Inhibitory effect of Chaenomelis Fructus ethanol extract on receptor activator of nuclear factor-kappa B ligand-mediated osteoclastogenesis 木瓜乙醇提取物对核因子κ B配体介导的破骨细胞发生受体激活物的抑制作用
Pub Date : 2020-03-30 DOI: 10.11620/ijob.2020.45.1.15
G. Park, D. Gu, Seoung‐Hoon Lee
The fruit of Chaenomeles sinensis (Thouin) Koehne (Chaenomelis Fructus) known as “Mo-Gua” in Korea has been commonly used in traditional medicine to treat inflammatory diseases, such as sore throat. However, its effect on bone metabolism has not been elucidated yet. Here, we examined the effect of Chaenomelis Fructus ethanol extract (CFE) on receptor activator of nuclear factor (NF)-κB ligand (RANKL)-mediated osteoclast differentiation and formation. CF-E considerably inhibited osteoclast differentiation and tartrate-resistant acid phosphatase-positive multinuclear cell formation from bone marrow-derived macrophages and osteoclast precursor cells in a dose-dependent manner. In addition, the formation of actin rings and resorption pits were significantly suppressed in CF-E-treated osteoclasts as compared with the findings in non-treated control cells. Consistent with these phenotypic inhibitory results, the expressions of osteoclast differentiation marker genes (Acp5, Atp6v0d2 , Oscar, CtsK, and Tm7sf4) and Nfatc1 , a pivotal transcription factor for osteoclastogenesis, were markedly decreased by CF-E treatment. The inhibitory effect of CF-E on RANKL-induced osteoclastogenesis was associated with the suppression of NFATc1 expression, not by regulation of mitogen-activated protein kinases and NF-κB activation but by the inactivation of phospholipase C gamma 1 and 2. These results indicate that CF-E has an inhibitory effect on osteoclast differentiation and formation, and they suggest the possibility of CF-E as a traditional therapeutic agent against bone-resorptive diseases, such as osteoporosis, rheumatoid arthritis, and periodontitis.
在韩国被称为“毛瓜”的木瓜果实在传统医学中被广泛用于治疗喉咙痛等炎症性疾病。然而,其对骨代谢的影响尚不清楚。本实验研究了木瓜果乙醇提取物(CFE)对核因子-κB受体激活剂(RANKL)介导的破骨细胞分化和形成的影响。CF-E以剂量依赖的方式显著抑制骨髓源性巨噬细胞和破骨细胞前体细胞的破骨细胞分化和抗酒石酸酸性磷酸酶阳性多核细胞形成。此外,与未处理的对照细胞相比,cf - e处理的破骨细胞中肌动蛋白环和吸收坑的形成明显受到抑制。与这些表型抑制结果一致,CF-E处理显著降低了破骨细胞分化标志基因(Acp5、Atp6v0d2、Oscar、CtsK和Tm7sf4)和破骨细胞生成关键转录因子Nfatc1的表达。CF-E对rankl诱导的破骨细胞形成的抑制作用与抑制NFATc1表达有关,而不是通过调节丝裂原活化蛋白激酶和NF-κB活化,而是通过磷脂酶C γ 1和2的失活。这些结果表明,CF-E对破骨细胞的分化和形成具有抑制作用,并提示CF-E可能作为骨吸收性疾病(如骨质疏松症、类风湿关节炎和牙周炎)的传统治疗剂。
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International Journal of Oral Biology
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