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https://www.readbyqxmd.com/read/28219642/synergy-of-raddeanin-a-and-cisplatin-induced-therapeutic-effect-enhancement-in-human-hepatocellular-carcinoma
#1
Li Jian-Nan, Yu Ye, Zhang Yan-Fei, Li Zhi-Meng, Cai Guang-Zhi, Gong Ji-Yu
Cisplatin is a main compound for human hepatocellular carcinoma (HCC) chemotherapies, but it has certain cytotoxicity during applications. To release that, combining with other drugs are being as a regular plan in clinic. In our present study, we are focusing on one of active monomers extracted from Anemone Raddeana Regel, Raddeanin A (RA), which is on behalf of the same character like cisplatin in the tumor remedies. In order to investigate whether combination usage of RA and cisplatin can be priority to the later drug's effect development and its toxicity reduction in HCC, both of two drugs were treated 24 h or 48 h in QGY-7703 cells for estimating their abilities in tumor cell proliferation inhibition...
February 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28207834/a-cyclin-dependent-kinase-inhibitor-dinaciclib-in-preclinical-treatment-models-of-thyroid-cancer
#2
Shu-Fu Lin, Jen-Der Lin, Chuen Hsueh, Ting-Chao Chou, Richard J Wong
BACKGROUND: We explored the therapeutic effects of dinaciclib, a cyclin-dependent kinase (CDK) inhibitor, in the treatment of thyroid cancer. MATERIALS AND METHODS: Seven cell lines originating from three pathologic types of thyroid cancer (papillary, follicular and anaplastic) were studied. The cytotoxicity of dinaciclib was measured using a lactate dehydrogenase assay. The expression of proteins associated with cell cycle and apoptosis was assessed using Western blot analysis and immunofluorescence microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28205224/muc13-overexpression-in-renal-cell-carcinoma-plays-a-central-role-in-tumour-progression-and-drug-resistance
#3
Yonghua Sheng, Choa Ping Ng, Rohan Lourie, Esha T Shah, Yaowu He, Kuan Yau Wong, Inge Seim, Iulia Oancea, Christudas Morais, Penny L Jeffery, John Hooper, Glenda C Gobe, Michael A McGuckin
Metastatic renal cell carcinoma is a largely incurable disease, and existing treatments targeting angiogenesis and tyrosine kinase receptors are only partially effective. Here we reveal that MUC13, a cell surface mucin glycoprotein, is aberrantly expressed by most renal cell carcinomas, with increasing expression positively correlating with tumor grade. Importantly, we demonstrated that high MUC13 expression was a statistically significant independent predictor of poor survival in two independent cohorts, particularly in stage 1 cancers...
February 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28193315/survivin-protects-fused-cancer-cells-from-massive-cell-death
#4
Mihyang Do, In-Hae Kwak, Ju-Hyun Ahn, In Jeong Lee, Jae-Ho Lee
Tetraploidy, a potential precursor of cancer-associated aneuploidy, is produced either by cell fusion or cytokinesis failure. Here, we used low p53-expressing HeLa cells to address the fate of cancer cells after fusion. We found that massive cell death or growth arrest occurred a few days after fusion. Interestingly, cells with larger nuclei preferentially died after fusion, suggesting that a larger deviation of DNA content is a strong inducer of apoptosis. Notably, a fraction of cells escaped cell death. It turned out that the stability of survivin was increased, and its localization changed preferentially to the cytosol in fused cells...
February 14, 2017: BMB Reports
https://www.readbyqxmd.com/read/28192620/ypc-21661-and-ypc-22026-novel-small-molecules-inhibit-znf143-activity-in-vitro-and-in-vivo
#5
Hirotaka Haibara, Ryuta Yamazaki, Yukiko Nishiyama, Masahiro Ono, Tsuneyuki Kobayashi, Atsuko Hokkyo-Itagaki, Fukiko Nishisaka, Hiroyuki Nishiyama, Akinobu Kurita, Takeshi Matsuzaki, Hiroto Izumi, Kimitoshi Kohno
Zinc-finger protein 143 (ZNF143) is a transcription factor that is involved in anticancer drug resistance and cancer cell survival. In the present study, we identified a novel small molecule N-(5-bromo-2-methoxyphenyl)-3-(pyridine-3-yl) propiolamide (YPC-21661) that inhibited ZNF143 promoter activity and down-regulated the expression of the ZNF143-regulated genes, RAD51, PLK1, and Survivin, by inhibiting the binding of ZNF143 to DNA. In addition, YPC-21661 was cytotoxic and induced apoptosis in the human colon cancer cell line, HCT116 and human prostate cancer cell line, PC-3...
February 13, 2017: Cancer Science
https://www.readbyqxmd.com/read/28191619/hypothyroidism-reduces-mammary-tumor-progression-via-%C3%AE-catenin-activated-intrinsic-apoptotic-pathway-in-rats
#6
C M López Fontana, L E Zyla, F E Santiano, C V Sasso, F D Cuello-Carrión, V Pistone Creydt, M A Fanelli, R W Carón
Experimental hypothyroidism retards mammary carcinogenesis promoting apoptosis of tumor cells. β-catenin plays a critical role in cell adhesion and intracellular signaling pathways conditioning the prognosis of breast cancer. However, the mechanistic connections associated with the expression of β-catenin in thyroid status and breast cancer are not known. Therefore, we studied the relationship between the expression and localization of β-catenin and apoptosis in mammary tumors induced by 7,12-dimethylbenz(a)anthracene (DMBA) in hypothyroid (Hypot) and euthyroid (EUT) rats...
February 13, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28188441/factors-that-may-influence-polymorphous-low-grade-adenocarcinoma-growth
#7
Andresa Borges Soares, Elizabeth Ferreira Martinez, Patricia Fernandes Avila Ribeiro, Icleia Siqueira Barreto, Maria Cássia Aguiar, Cristiane Furuse, Marcelo Sperandio, Victor Angelo Montalli, Ney Soares de Araújo, Vera Cavalcanti de Araújo
There is mounting evidence on the importance of some biological processes in tumor growth, such as vascular supply, apoptosis, autophagy, and senescence. We have investigated these processes in polymorphous low-grade adenocarcinoma (PLGA), in an attempt to identify those that are relevant for this particular lesion. We analyzed 31 cases of PLGA using immunohistochemistry to antibodies against CD34 and CD105 to detect blood vessels; against D2-40 to detect lymphatic vessels; against Bax, Bcl-2, and survivin to explore cell apoptosis; and against Beclin and LCB3 to investigate autophagy and against p21 and p16 to assess senescence...
February 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28187727/cryptotanshinone-enhances-the-effect-of-arsenic-trioxide-in-treating-liver-cancer-cell-by-inducing-apoptosis-through-downregulating-phosphorylated-stat3-in-vitro-and-in-vivo
#8
Li Shen, Guangshun Zhang, Zhaohuan Lou, Guanhua Xu, Guangji Zhang
BACKGROUND: Arsenic trioxide (ATO) is approved for treating terminal-stage liver cancer in China. Cryptotanshinone (CT), a STAT3 inhibitor, has exhibited certain anti-tumor potency; however, the use of CT enhanced ATO for treating liver cancer has not been reported. Here we try to elucidate how CT could enhance the efficacy of ATO for treating liver cancer and its correlation to STAT3 in vitro and in vivo. METHODS: Cell viability of ATO combined with CT was assessed by (1)MTT assay...
February 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28182003/luteolin-selectively-kills-stat3-highly-activated-gastric-cancer-cells-through-enhancing-the-binding-of-stat3-to-shp-1
#9
Shiyu Song, Zhonglan Su, Hui Xu, Mengyuan Niu, Xiufang Chen, Haiyan Min, Bin Zhang, Guibo Sun, Sijing Xie, Hongwei Wang, Qian Gao
The antitumor effect of luteolin, a plant flavonoid, in gastric cancer (GC) cells has not been fully understood. Here we show that luteolin selectively kills STAT3 overactivated GC cells that are often drug resistant. The treatment of luteolin in these GC cells significantly inhibited STAT3 phosphorylation and reduced the expression of STAT3 targeting gene Mcl-1, Survivin and Bcl-xl. Silencing of SHP-1, a protein tyrosine phosphatase, abolished the inhibitory effect of luteolin on STAT3 and cell apoptosis, suggesting that SHP-1 is crucial in luteolin-mediated cellular function...
February 9, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28178219/altholactone-inhibits-nf-%C3%AE%C2%BAb-and-stat3-activation-and-induces-reactive-oxygen-species-mediated-apoptosis-in-prostate-cancer-du145-cells
#10
Chunwa Jiang, Muqaddas Masood, Azhar Rasul, Wei Wei, Ya Wang, Muhammad Ali, Muhammad Mustaqeem, Jiang Li, Xiaomeng Li
Altholactone, a natural compound isolated from Goniothalamus spp., has demonstrated anti-inflammatory and anticancer activities, but its molecular mechanisms are still not fully defined. Nuclear factor kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3) play pivotal roles in the cell survival of many human tumors. The objective of this study was to elucidate the mechanism of action of altholactone against prostate cancer DU145 cells and to evaluate whether its effects are mediated by inhibition of NF-κB and STAT3 activity...
February 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28176915/downregulation-of-dcr3-sensitizes-hepatocellular-carcinoma-cells-to-trail-induced-apoptosis
#11
Chaojie Liang, Yingchen Xu, Guangming Li, Tuanjie Zhao, Feng Xia, Guanqun Li, Dongxin Zhang, Jixiang Wu
Decoy receptor 3 (DcR3) has been recently described as an antiapoptosis and prometastasis factor since it can competitively bind to FasL, TL1A, and LIGHT, and it is highly expressed in many malignant tumors. Downregulation of DcR3 can promote tumor cell apoptosis and inhibit metastasis. A previous study demonstrated that reduction of DcR3 could induce tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated apoptosis in pancreatic cancer cells. However, whether such an effect is seen in hepatocellular carcinoma (HCC) remains to be explored...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28170128/effect-of-the-histone-deacetylase-inhibitor-resminostat-on-head-and-neck-squamous-cell-carcinoma-cell-lines
#12
Elisabeth Enzenhofer, Lorenz Kadletz, Isabella Stanisz, Ulana Kotowski, Rudolf Seemann, Rainer Schmid, Dietmar Thurnher, Gregor Heiduschka
BACKGROUND: Carcinogenesis is determined by various epigenetic events, such as histone deacetylation. The purpose of this study was to investigate the effect of the new histone deacetylase inhibitor resminostat on head and neck squamous cell carcinoma (HNSCC) cell lines. METHODS: The cytotoxicity of resminostat and cisplatin on HNSCC cell lines SCC25, CAL27, and FaDu was determined using CCK-8 cell proliferation assay and combination index analysis. Cells were irradiated with 2 to 8 Gray...
February 7, 2017: Head & Neck
https://www.readbyqxmd.com/read/28165568/microrna15b-regulates-apoptosis-of-cutaneous-squamous-cell-carcinoma-scl-1-cell-line-a-mechanism-study
#13
S-H Zhang, Z-Y Li, Z-J Liu, G-Y Miao, B-G Liu
OBJECTIVE: Cutaneous squamous cell carcinoma is a malignant tumor, which is mostly common in skin epidermis or appendages. microRNA has been proved to regulate growth and survival of cells. Our study was focused on the effect of microRNA15b on cell viability and apoptosis of cutaneous squamous cell carcinoma SCL-1 cell line. MATERIALS AND METHODS: MicroRNA15b and control microRNA were synthesized and transfected into SCL-1 cells, respectively. Effects of transfection on SCL-1 cells were evaluated by MTT assays and flow cytometry...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28150398/c-myc-regulates-radiation-induced-g2-m-cell-cycle-arrest-and-cell-death-in-human-cervical-cancer-cells
#14
Fengmei Cui, Jun Hou, Chengcheng Huang, Xiujin Sun, Yanan Zeng, Huiying Cheng, Hao Wang, Chao Li
AIM: The study was conducted to investigate the role of c-Myc in the regulation of ionizing radiation-induced cell cycle arrest and cell death in human cervical cancer cells. METHODS: Control and c-Myc-silenced Hela cells were collected at different time points after (60) Co γ-ray radiation. Flow cytometry was used to measure cell cycle distribution and apoptosis. Immunofluorescence was applied to determine the percentage of cells in M phase. Transmission electron microscopy and immunoblotting were used to detect the induction of autophagy after radiation...
February 2, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28143460/chlorella-sorokiniana-induces-mitochondrial-mediated-apoptosis-in-human-non-small-cell-lung-cancer-cells-and-inhibits-xenograft-tumor-growth-in-vivo
#15
Ping-Yi Lin, Ching-Tsan Tsai, Wan-Ling Chuang, Ya-Hsuan Chao, I-Horng Pan, Yu-Kuo Chen, Chi-Chen Lin, Bing-Yen Wang
BACKGROUND: Lung cancer is one of the leading causes of cancer related deaths worldwide. Marine microalgae are a source of biologically active compounds and are widely consumed as a nutritional supplement in East Asian countries. It has been reported that Chlorella or Chlorella extracts have various beneficial pharmacological compounds that modulate immune responses; however, no studies have investigated the anti-cancer effects of Chlorella sorokiniana (CS) on non-small cell lung cancer (NSCLC)...
February 1, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28139689/nf-%C3%AE%C2%BAb-suppresses-apoptosis-and-promotes-bladder-cancer-cell-proliferation-by-upregulating-survivin-expression-in-vitro-and-in-vivo
#16
Xiaolu Cui, Dezhi Shen, Chuize Kong, Zhe Zhang, Yu Zeng, Xuyong Lin, Xiankui Liu
Nuclear factor kappa-B (NF-κB) activation is a common phenomenon in cancers, which results in the aberrant expression of NF-κB target genes and leads to malignant transformation, metastatic dissemination, abnormal cell proliferation or resistance to cell death. Survivin is a unique member of the IAP family, a well-known cancer-specific molecule and a molecular marker of poor clinical outcome in several cancer types, including bladder cancer. YM-155, a potent survivin suppressor, has been shown to have anti-tumor activity in preclinical cell lines, xenograft models and phase I/II studies...
January 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28133985/apoptosis-and-injuries-of-heavy-ion-beam-and-x-ray-radiation-on-malignant-melanoma-cell
#17
Jin Qin, Sha Li, Chao Zhang, Dong-Wei Gao, Qiang Li, Hong Zhang, Xiao-Dong Jin, Yang Liu
This study aims to investigate the influence of high linear energy transfer (LET) heavy ion ((12)C(6+)) and low LET X-ray radiation on apoptosis and related proteins of malignant melanoma on tumor-bearing mice under the same physical dosage. C57BL/6 J mice were burdened by tumors and randomized into three groups. These mice received heavy ion ((12)C(6+)) and X-ray radiation under the same physical dosage, respectively; their weight and tumor volumes were measured every three days post-radiation. After 30 days, these mice were sacrificed...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28123591/isoimperatorin-induces-apoptosis-of-the-sgc-7901-human-gastric-cancer-cell-line-via-the-mitochondria-mediated-pathway
#18
Kehui Tong, Chang Xin, Wenzhong Chen
The present study was designed to investigate the antiproliferative activity of isoimperatorin against SGC-7901 cells and to examine the possible mechanisms. The antiproliferative activity of isoimperatorin against SGC-7901 cells was evaluated using an MTT assay, and the mechanisms were investigated using flow cytometry and western blot assays, which were used to determine the apoptotic rate and expression levels of mitochondria-mediated apoptosis-associated proteins, including Survivin, myeloid leukemia cell-1 (Mcl-1), B cell lymphoma-extra large (Bcl-xl), B cell lymphoma 2 (Bcl-2), second mitochondria-derived activator of caspase (Smac), Bcl-2-associated X factor (Bax), cleaved (c)-caspase-3 and c-caspase-9 in SGC-7901 cells...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28123569/anticancer-activity-of-sesquiterpenoids-extracted-from-solanum-lyratum-via-the-induction-of-mitochondria-mediated-apoptosis
#19
Min Chen, Jian Wu, Xing-Xing Zhang, Qiong Wang, Shi-Hai Yan, Hai-Dan Wang, Sheng-Lin Liu, Xi Zou
Sesquiterpenoids are a major type of compound found in Solanum lyratum (S. lyratum). The present study aimed to investigate whether sesquiterpenoids from S. lyratum demonstrated cytotoxicity against the MCF-7, HCT-8, A-549, SGC-7901 and BEL-7402 cell lines, and the mechanism of solajiangxin H and lyratol D, which exhibited high cytotoxicity against SGC-7901 cells (half maximal inhibitory concentration, IC50=4.8 and 5.9 µg/ml), was associated with mitochondria-mediated apoptosis. The results of the Cell Counting Kit-8 assay indicated that 15 sesquiterpenoids had cytotoxicity against the aforementioned cultured cells...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28123543/increased-chemosensitivity-and-radiosensitivity-of-human-breast-cancer-cell-lines-treated-with-novel-functionalized-single-walled-carbon-nanotubes
#20
Yijun Jia, Ziyi Weng, Chuanying Wang, Mingjie Zhu, Yunshu Lu, Longlong Ding, Yongkun Wang, Xianhua Cheng, Qing Lin, Kejin Wu
Hypoxia is a major cause of treatment resistance in breast cancer. Single-walled carbon nanotubes (SWCNTs) exhibit unique properties that make them promising candidates for breast cancer treatment. In the present study, a new functionalized single-walled carbon nanotube carrying oxygen was synthesized; it was determined whether this material could increase chemosensitivity and radiosensitivity of human breast cancer cell lines, and the underlying mechanisms were investigated. MDA-MB-231 cells growing in folic acid (FA) free medium, MDA-MB-231 cells growing in medium containing FA and ZR-75-1 cells were treated with chemotherapy drugs or radiotherapy with or without tombarthite-modified-FA-chitosan (R-O2-FA-CHI)-SWCNTs under hypoxic conditions, and the cell viability was determined by water-soluble tetrazolium salts-1 assay...
January 2017: Oncology Letters
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