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https://www.readbyqxmd.com/read/28239822/the-relationship-between-the-expression-of-tam-survivin-and-the-degree-of-necrosis-of-the-tumor-after-cisplatin-treatment-in-osteosarcoma
#1
G Chen
OBJECTIVE: To explore the relationship between the expression of TAM, survivin and the degree of necrosis of the tumor after cisplatin treatment in osteosarcoma. MATERIALS AND METHODS: The mice model of osteosarcoma S180 were injected with 6 mg/kg/day of cisplatin (observation group) or the same amount of normal saline (control group) for 4 weeks. Mice were sacrificed at days 1, 4, 9, 14, 18, 22 and 28, respectively, 24 h before administration of the drug or saline, and tumor tissues were collected...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28239804/arsenic-trioxide-regulates-gastric-cancer-cell-apoptosis-by-mediating-camp
#2
A Abudoureyimu, A Muhemaitibake
OBJECTIVE: Gastric cancer is a common digestive tract tumor in clinic with increasing incidence. It is suggested that arsenic trioxide (As2O3) has an inhibitory effect on many kinds of digestive system tumors. This study evaluated the impact of As2O3 on the apoptosis of gastric cancer BGC-823 cells, and analyzed its relationship with cyclic adenosine monophosphate (cAMP). MATERIALS AND METHODS: Gastric cancer cell BGC-823 was intervened by different concentrations of As2O3 at 4 ng/ml, 8 ng/ml, and 16 ng/ml, respectively...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28237700/prostaglandin-e1-reduces-the-keratinocyte-toxicity-of-sorafenib-by-maintaining-signal-transducer-and-activator-of-transcription-3-stat3-activity-and-enhancing-the-camp-response-element-binding-protein-creb-activity
#3
Hiroaki Shichiri, Kazuhiro Yamamoto, Maya Tokura, Takahiro Ishida, Atsushi Uda, Toshinori Bito, Chikako Nishigori, Tsutomu Nakagawa, Takeshi Hirano, Ikuko Yano, Midori Hirai
Hand-foot skin reaction (HFSR) is a common side effect of multiple tyrosine kinase inhibitors (mTKIs). HFSR can necessitate dose reductions or interruption of therapy owing to its negative effect on the quality of life. Therefore, effective use of mTKIs requires measures to prevent HFSR. We evaluated the effect of prostaglandin E1 (PGE1) on HFSR, because PGE1 is already used to treat bed sores and skin ulcers and has established angiogenic and antiproliferative effects in keratinocytes. We found that the pathogenesis of sorafenib-induced HFSR is characterized by a decrease in levels of a phosphorylated signal transducer and activator of transcription 3 (STAT3)...
February 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28237663/novel-multi-substituted-benzyl-acridone-derivatives-as-survivin-inhibitors-for-hepatocellular-carcinoma-treatment
#4
Bin Zhang, Ning Wang, Cunlong Zhang, Chunmei Gao, Wei Zhang, Kang Chen, Weibin Wu, Yuzong Chen, Chunyan Tan, Feng Liu, Yuyang Jiang
Sorafenib was the only small-molecule drug approved by FDA for treatment of the advanced hepatocellular carcinoma (HCC). Recent study indicated that YM155 was a promising agent for HCC cells with high survivin expression, however, the antitumor activity needs to be further improved. Based on molecular docking and rational design method, a series of multi-substituted benzyl acridone derivatives were designed and synthesized. MTT assay indicated that some of the synthesized compounds displayed better antiproliferative activity against HepG2 cells than YM155...
February 17, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28222632/cryptotanshinone-potentiates-the-antitumor-effects-of-doxorubicin-on-gastric-cancer-cells-via-inhibition-of-stat3-activity
#5
Jiye Wang, Guangji Zhang, Chunyan Dai, Xiufei Gao, Jianbin Wu, Li Shen, Zhe Chen, Pei Liu
Objective To investigate the synergistic effects of cryptotanshinone (CPT) and doxorubicin (DOXO) on induction of apoptosis in human gastric cancer cells and the mechanisms. Methods Cell proliferation and apoptosis were detected using the CCK8 assay and AnnexinV/PI staining, respectively. Western blotting was used to determine the levels and phosphorylation of proteins encoded by STAT3-regulated genes and the cleaved forms of caspases and PARP. Results CPT significantly potentiated the antiproliferative effect of DOXO in gastric cancer cell lines...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28221687/erratum-activation-of-nuclear-factor-%C3%AE%C2%BAb-pathway-and-downstream-targets-survivin-and-livin-by-sharpin-contributes-to-the-progression-and-metastasis-of-prostate-cancer
#6
https://www.readbyqxmd.com/read/28219642/synergy-of-raddeanin-a-and-cisplatin-induced-therapeutic-effect-enhancement-in-human-hepatocellular-carcinoma
#7
Jian-Nan Li, Ye Yu, Yan-Fei Zhang, Zhi-Meng Li, Guang-Zhi Cai, Ji-Yu Gong
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 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28218735/aurora-kinase-a-regulates-survivin-stability-through-targeting-fbxl7-in-gastric-cancer-drug-resistance-and-prognosis
#8
M Kamran, Z-J Long, D Xu, S-S Lv, B Liu, C-L Wang, J Xu, E W-F Lam, Q Liu
Aurora kinase A (AURKA) has been implicated in the regulation of cell cycle progression, mitosis and a key number of oncogenic signaling pathways in various malignancies. However, little is known about its role in gastric cancer prognosis and genotoxic resistance. Here we found that AURKA was highly overexpressed in gastric cancer and inversely correlated with disease prognosis. Overexpression of AURKA exacerbated gastric cancer drug resistance through upregulating the expression of the anti-apoptotic protein Survivin...
February 20, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28218042/doxorubicin-has-a-synergistic-cytotoxicity-with-cucurbitacin-b-in-anaplastic-thyroid-carcinoma-cells
#9
Si Hyoung Kim, Jun Goo Kang, Chul Sik Kim, Sung-Hee Ihm, Moon Gi Choi, Hyung Joon Yoo, Seong Jin Lee
In this study, the combined effect of doxorubicin with cucurbitacin B on survival of anaplastic thyroid carcinoma cells was evaluated. For experiments, 8505C and CAL62 human anaplastic thyroid carcinoma cells were used. Cell viability, the percentage of viable cells, and cytotoxic activity were measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, multiplexed cytotoxicity assay, and cytotoxicity assay, respectively. Reactive oxygen species production was measured. In experiments, doxorubicin and cucurbitacin B reduced cell viability in a dose- and time-dependent manner...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28214203/prognostic-value-of-survivin-and-dna-topoisomerase-ii%C3%AE-in-diffuse-and-anaplastic-astrocytomas
#10
R K Varughese, A J Skjulsvik, S H Torp
Distinguishing WHO grade II astrocytomas from grade III is a difficult task. This study looks into the potential prognostic use of mitotic activity and the proliferation markers Ki67/MiB-1 (Ki67), survivin and DNA topoisomerase IIα (TIIα) in 59 WHO grade II diffuse astrocytomas (DA) and 33 WHO grade III anaplastic astrocytomas (AA), IDH1 R132H-mutated and not otherwise specified (NOS) by means of immunohistochemistry. All proliferation markers showed higher expression in AA compared with DA. Only Ki67 had significantly greater expression in astrocytomas, NOS vs...
January 21, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28207834/a-cyclin-dependent-kinase-inhibitor-dinaciclib-in-preclinical-treatment-models-of-thyroid-cancer
#11
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
#12
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
#13
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
#14
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/28191782/preventing-pluripotent-cell-teratoma-in-regenerative-medicine-applied-to-hematology-disorders
#15
Aurelie Bedel, François Beliveau, Isabelle Lamrissi-Garcia, Benoit Rousseau, Isabelle Moranvillier, Benoit Rucheton, Veronique Guyonnet-Dupérat, Bruno Cardinaud, Hubert de Verneuil, François Moreau-Gaudry, Sandrine Dabernat
Iatrogenic tumorigenesis is a major limitation for the use of human induced pluripotent stem cells (hiPSCs) in hematology. The teratoma risk comes from the persistence of hiPSCs in differentiated cell populations. Our goal was to evaluate the best system to purge residual hiPSCs before graft without compromising hematopoietic repopulation capability. Teratoma risk after systemic injection of hiPSCs expressing the reporter gene luciferase was assessed for the first time. Teratoma formation in immune-deficient mice was tracked by in vivo bioimaging...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191619/hypothyroidism-reduces-mammary-tumor-progression-via-%C3%AE-catenin-activated-intrinsic-apoptotic-pathway-in-rats
#16
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
#17
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
#18
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/28187036/a-brief-report-of-immunohistochemical-markers-to-identify-aggressive-hepatoblastoma
#19
Vivekanand Singh, Michelle Manalang, Meenal Singh, Udayan Apte
Hepatoblastoma (HB) is the most common malignant liver tumor in children. Although survival of patients has improved significantly over the last 2 decades, a significant number of patients do not respond to standard chemotherapy. We conducted a pilot study to understand if there was immunophenotypic difference between tumors that respond well to chemotherapy versus that do not. We selected 10 cases of HB from children presenting at our hospital. All patients had initial tissue diagnosis, underwent chemotherapy followed by surgical resection...
February 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28185769/intact-wound-repair-activity-of-human-mesenchymal-stem-cells-after-ym155-mediated-selective-ablation-of-undifferentiated-human-embryonic-stem-cells
#20
Keun-Tae Kim, Ho-Chang Jeong, C-Yoon Kim, Eun-Young Kim, Si-Hyun Heo, Seung-Ju Cho, Ki-Sung Hong, Hyuk-Jin Cha
BACKGROUND: Risk of teratoma formation during human pluripotent stem cell (hPSC)-based cell therapy is one of the technical hurdles that must be resolved before their wider clinical application. To this end, selective ablation of undifferentiated hPSCs has been achieved using small molecules whose application should be safe for differentiated cells derived from the hPSCs. OBJECTIVE: However, the functional safety of such small molecules in the cells differentiated from hPSCs has not yet been extensively validated...
January 31, 2017: Journal of Dermatological Science
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