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https://www.readbyqxmd.com/read/28330997/igfbp3-modulates-lung-tumorigenesis-and-cell-growth-through-igf1-signaling
#1
Yong A Wang, Yunguang Sun, Joshua D Palmer, Charalambos Solomides, Li-Ching Huang, Yu Shyr, Adam P Dicker, Bo Lu
Insulin-like growth factor binding protein 3 (IGFBP3) modulates cell growth through IGF-dependent and -independent mechanisms. Reports suggest that the serum levels of IGFBP3 are associated with various cancers and that IGFBP3 expression is significantly decreased in cisplatin (CDDP)-resistant lung cancer cells. Based on these findings, we investigated whether Igfbp3 deficiency accelerates mouse lung tumorigenesis and if expression of IGFBP3 enhances CDDP response by focusing on the IGF1 signaling cascade. To this end, an Igfbp3-null mouse model was generated in combination with KrasG12D to compare the tumor burden...
March 22, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28326487/enhanced-stim1-expression-is-associated-with-acquired-chemo-resistance-of-cisplatin-in-osteosarcoma-cells
#2
Xilong Sun, Qiang Wei, Jie Cheng, Yanzhu Bian, Congna Tian, Yujing Hu, Huijie Li
Osteosarcoma is the most common primary malignant bone tumor. Although cisplatin is the primary chemotherapy used in osteosarcoma treatment, the cisplatin resistance remains a big challenge for improving overall survival. The store-operated calcium (Ca(2+)) entry (SOCE) and its major mediator Stim1 have been shown to be implicated in a number of pathological processes typical for cancer. In this study, we showed that Stim1 expression was significantly increased in chemo-resistant osteosarcoma tissues compared with chemo-sensitivity tissues...
March 22, 2017: Human Cell
https://www.readbyqxmd.com/read/28325607/japanese-clinical-practice-guideline-for-head-and-neck-cancer
#3
REVIEW
Ken-Ichi Nibu, Ryuichi Hayashi, Takahiro Asakage, Hiroya Ojiri, Yoshihiro Kimata, Takeshi Kodaira, Toshitaka Nagao, Torahiko Nakashima, Takashi Fujii, Hirofumi Fujii, Akihiro Homma, Kazuto Matsuura, Nobuya Monden, Takeshi Beppu, Nobuhiro Hanai, Tadaaki Kirita, Yuzuru Kamei, Naoki Otsuki, Naomi Kiyota, Sadamoto Zenda, Ken Omura, Koichi Omori, Tetsuo Akimoto, Kazuyoshi Kawabata, Seiji Kishimoto, Hiroya Kitano, Iwai Tohnai, Takashi Nakatsuka
OBJECTIVE: The first revision of "Japanese Clinical Practice Guideline for Head and Neck Cancer" was made in 2013 by the clinical practice guideline committee of Japan Society for Head and Neck Cancer, in response to the revision of the TNM classification. METHODS: 34 CQs (Clinical Questions) were newly adopted to describe the diagnosis and treatment methods currently considered most appropriate, and offered recommendation grade made by the consensus of the committee...
March 18, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28325293/a-pirna-like-small-rna-induces-chemoresistance-to-cisplatin-based-therapy-by-inhibiting-apoptosis-in-lung-squamous-cell-carcinoma
#4
Yuyan Wang, Tyler Gable, Mark Z Ma, David Clark, Jun Zhao, Yi Zhang, Wei Liu, Li Mao, Yuping Mei
Lung cancer is the leading cause of cancer-related death worldwide. Although advanced drugs have benefitted patients, therapeutic success has largely been hampered because of rapid development of resistance. Here we report that PIWI-interacting RNA likes (piR-Ls), a novel type of functional sncRNAs, play key roles in chemoresistance to cisplatin (CDDP)-based chemotherapy in lung squamous cell carcinoma (LSCC). piR-L-138 was upregulated upon CDDP-based chemotherapy both in LSCC cells and in patient-derived xenograft (PDX) LSCC models...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28314266/additive-interaction-of-cisplatin-and-histone-deacetylase-inhibitors-combined-treatment-in-rhabdomyosarcoma-cells-an-isobolographic-analysis
#5
Agata Jarząb, Jarogniew J Łuszczki, Małgorzata Guz, Ewelina Gumbarewicz, Krzysztof Polberg, Andrzej Stepulak
BACKGROUND/AIM: The aim of this study was to assess the anticancer effect and the type of pharmacologic drug-drug interaction of cisplatin (CDDP) and histone deacetylase inhibitors (HDIs) combined treatment on the rhabdomyosarcoma cell line. MATERIALS AND METHODS: The antiproliferative actions of cisplatin and suberoylanilide hydroxamic acid (SAHA, vorinostat), as well as valproic acid (VPA) alone and in combination, were evaluated using the tetrazolium dye-based MTT cell proliferation assay and isobolographic analysis...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28291769/downregulation-of-mir-33a-5p-in-hepatocellular-carcinoma-a-possible-mechanism-for-chemotherapy-resistance
#6
Wei Meng, Yan Tai, Hui Zhao, Binsheng Fu, Tong Zhang, Wei Liu, Hua Li, Yang Yang, Qi Zhang, Yuliang Feng, Guihua Chen
BACKGROUND Multi-drug resistance is one of the major problems limiting the efficacy of cisplatin (CDDP) in treatment of hepatocellular carcinoma (HCC), and abnormal microRNA (miRNA) expression in drug-resistant cell lines plays an important role in liver cancer chemotherapy resistance. MATERIAL AND METHODS We established stable Hep3B and 97L HCC cell strains resistant to CDDP, both in vitro and in vivo. A combination of microRNA microarray and RT-qPCR experiments were used to screen differentially expressed miRNAs in HCC cell strains...
March 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28291626/mus81-knockdown-sensitizes-colon-cancer-cells-to-chemotherapeutic-drugs-by-activating-chk1-pathway
#7
Fan Wu, Shu-Chao Su, Guo-Qian Tan, Lun Yan, Ting-Yue Li, Hao-Lu Zhang, Ji-Shang Yu, Bai-Lin Wang
PURPOSE: The inhibition of Mus81, a critical DNA repair gene, is recently related to the chemosensitivity of several human cancer cells such as hepatocellular carcinoma (HCC) cells. However, the role of Mus81 knockdown in chemotherapy response of colon cancer cells remains largely unknown. METHODS AND MATERIALS: The effects of Mus81 knockdown by lentivirus-mediated short hairpin RNA in sensitivity of HCT116 and LS180 colon cancer cell lines to four therapeutic drugs, including cisplatin (CDDP), were evaluated by MTT assay as well as a mouse model...
March 10, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28288892/mr-image-guided-delivery-of-cisplatin-loaded-brain-penetrating-nanoparticles-to-invasive-glioma-with-focused-ultrasound
#8
Kelsie F Timbie, Umara Afzal, Abhijit Date, Clark Zhang, Ji Song, G Wilson Miller, Jung Soo Suk, Justin Hanes, Richard J Price
Systemically administered chemotherapeutic drugs are often ineffective in the treatment of invasive brain tumors due to poor therapeutic index. Within gliomas, despite the presence of heterogeneously leaky microvessels, dense extracellular matrix and high interstitial pressure generate a "blood-tumor barrier" (BTB), which inhibits drug delivery and distribution. Meanwhile, beyond the contrast MRI-enhancing edge of the tumor, invasive cancer cells are protected by the intact blood-brain barrier (BBB). Here, we tested whether brain-penetrating nanoparticles (BPN) that possess dense surface coatings of polyethylene glycol (PEG) and are loaded with cisplatin (CDDP) could be delivered across both the blood-tumor and blood-brain barriers with MR image-guided focused ultrasound (MRgFUS), and whether this treatment could control glioma growth and invasiveness...
March 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28288821/reversal-of-cisplatin-resistance-in-human-gastric-cancer-cells-by-a-wogonin-conjugated-pt-iv-prodrug-via-attenuating-casein-kinase-2-mediated-nuclear-factor-%C3%AE%C2%BAb-pathways
#9
Feihong Chen, Xiaodong Qin, Gang Xu, Shaohua Gou, Xiufeng Jin
Pt(IV) prodrugs, with two additional coordination sites in contrast to Pt(II) drugs, have been actively studied nowadays, for they can perform well in enhancing the accumulation and retention of the corresponding Pt(II) drugs in cancer cells. Our designed Pt(II) drug, DN604, was recently found to exhibit significant anticancer activity and low toxicity. While, wogonin, a naturally O-methylated flavones, has been widely investigated for its tumor therapeutic potential. Thus, two Pt(IV)-based prodrugs were derived by addition of a wogonin unit to the axial position of DN604 and its analogue DN603 via a linker group...
March 10, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28288818/3-o-z-coumaroyloleanolic-acid-overcomes-cks1b-induced-chemoresistance-in-lung-cancer-by-inhibiting-hsp90-and-mek-pathways
#10
He Wang, Mingna Sun, Jiayi Guo, Lei Ma, Hui Jiang, Liang Gu, Huaying Wen, Siyan Liao, Jingqi Chen, Bohang Zeng, Yongmei Li, Yueshan Li, Xiyong Yu, Yinghong Feng, Yi Zhou
Expression of CDC28 protein kinase regulatory subunit 1 (Cks1), an adaptor for cyclin-dependent kinases, is tightly regulated at transcriptional and posttranslational levels. Increased expression of Cks1 has been documented to be attributable to cancer progression, chemoresistance, and chemosensitivity. Here we report that ectopic overexpression of Cks1b in human lung cancer cells (Cks1b-OE) induces chemoresistance of the cells to cisplatin (CDDP) and doxorubicin (DOX) through mechanisms independent of its canonical Skp2-p27 pathway...
March 10, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28287251/cisplatin-induced-apoptosis-of-ovarian-cancer-a2780s-cells-by-activation-of-erk-p53-puma-signals
#11
Hao Song, Mei Wei, Wenfen Liu, Shulin Shen, Jiaqun Li, Liming Wang
Cisplatin (CDDP) is one of the most effective anticancer agents widely used in the treatment of solid tumors, including ovarian cancer. It is generally considered as a cytotoxic drug which kills cancer cells by causing DNA damage, and subsequently inducing apoptosis in cancer cells. However, the underlying mechanisms leading to cell apoptosis remain obscure. In this study, the signaling pathways involved in CDDP -induced apoptosis were examined using CDDP-sensitive ovarian cancer A2780s cells. A2780s cells were treated with CDDP (1...
March 13, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28278370/exploring-the-influence-of-the-aromaticity-on-the-anti-cancer-and-anti-vascular-activities-of-organoplatinum-ii-complexes
#12
Ana Zamora, Sergio A Pérez, Matthias Rothemund, Venancio Rodríguez, Rainer Schobert, Christoph Janiak, José Ruiz
A series of new organometallic Pt(II) complexes of the type [Pt(C^N)Cl(DMSO)] (C^N = N,N-dimethyl-1-(2-aryl)methanamine-K2C2,N; aryl = phenyl 2a, biphenyl 2b, p-terphenyl 2c, naphthyl 2d, anthracenyl 2e, pyrenyl 2f) have been synthesized to explore the influence of the aromaticity on their anticancer activity. The best performers 2b and 2d are more active than CDDP in epithelial ovarian carcinoma cells A2780, with 2d having a higher selectivity factor than CDDP in all the tested cell lines. In addition, all the new compounds overcome the acquired resistance in A2780cisR cells and interestingly, show low micromolar IC50 values towards the triple negative breast tumour cell line MDA-MB-231 and the highly metastatic 518A2 melanoma cells...
March 9, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28271051/syndrome-of-inappropriate-secretion-of-antidiuretic-hormone-caused-by-carboplatin-after-switching-from-cisplatin-in-a-metastatic-urethral-cancer-patient
#13
Yosuke Sugiyama, Taku Naiki, Masahiro Kondo, Keitaro Iida, Yuki Kondo, Yoshihiko Tasaki, Tomoya Kataoka, Asami Hotta, Takahiro Yasui, Kazunori Kimura
There is no established chemotherapy regimen in metastatic primary urethral cancer (mPUC). The efficacy of a cisplatin (CDDP)-based regimen has been reported, however, when the syndrome of inappropriate secretion of antidiuretic hormone (SIADH) occurs, the chemotherapy regimen should be changed to another platinum compound. In this report, we describe a 66-year-old woman who was diagnosed as mPUC with, CDDP-induced SIADH. After switching her to CBDCA and careful managing her sodium balance, three courses of the chemotherapy regimen were completed...
May 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28262615/dehydrobruceine-b-enhances-the-cisplatin-induced-cytotoxicity-through-regulation-of-the-mitochondrial-apoptotic-pathway-in-lung-cancer-a549-cells
#14
Zhuqing Huang, Guotao Yang, Tao Shen, Xiaoning Wang, Haizhen Li, Dongmei Ren
Dehydrobruceine B (DHB) is a quassinoid isolated from Brucea javanica. We have shown previously that DHB induced apoptosis on two kinds of lung cancer cell lines, A549 and NCI-H292. In the present study, we investigated the interactions of DHB and cisplatin (CDDP) on apoptotic-related cancer cell death. Synergistic effects on cell proliferation and apoptosis were observed when A549 cells were treated with DHB plus CDDP. DHB combined CDDP exposure increased depolarization of mitochondrial membrane potential (MMP) and release of cytochrome c from mitochondria into the cytoplasm...
March 2, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28260147/establishment-and-characterization-of-a-squamous-cell-carcinoma-cell-line-designated-hzk-1-derived-from-a-metastatic-lymph-node-tumor-of-the-tongue
#15
Tetsuya Hirabayashi, Haruka Takahashi, Miho Watanabe, Toshiaki Tachibana
The hZK-1 cell line was successfully established from the metastatic foci of a lymph node of an 82-year-old Japanese woman with squamous cell carcinoma of the tongue. The pathological diagnosis of the tumor was moderately to well-differentiated squamous cell carcinoma. The hZK-1 cells were angular in shape, and had neoplastic and pleomorphic features. Adjacent hZK-1 cells were joined by desmosomes and well-developed microvilli, and many free ribosomes were observed in the cytoplasm. The doubling time of the hZK-1 cells was approximately 36, 33, and 29 h at the 10th, 20th, and 30th passages, respectively...
March 4, 2017: Human Cell
https://www.readbyqxmd.com/read/28260105/depletion-of-tfap2e-attenuates-adriamycin-mediated-apoptosis-in-human-neuroblastoma-cells
#16
Reina Hoshi, Yosuke Watanabe, Yoshiaki Ishizuka, Takayuki Hirano, Eri Nagasaki-Maeoka, Shinsuke Yoshizawa, Shota Uekusa, Hiroyuki Kawashima, Kensuke Ohashi, Kiminobu Sugito, Noboru Fukuda, Hiroki Nagase, Masayoshi Soma, Toshinori Ozaki, Tsugumichi Koshinaga, Kyoko Fujiwara
Neuroblastoma is a childhood malignancy originating from the sympathetic nervous system and accounts for approximately 15% of all pediatric cancer-related deaths. To newly identify gene(s) implicated in the progression of neuroblastoma, we investigated aberrantly methylated genomic regions in mouse skin tumors. Previously, we reported that TFAP2E, a member of activator protein-2 transcription factor family, is highly methylated within its intron and its expression is strongly suppressed in mouse skin tumors compared with the normal skin...
February 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28259989/mefenamic-acid-enhances-anticancer-drug-sensitivity-via-inhibition-of-aldo-keto-reductase-1c-enzyme-activity
#17
Masashi Shiiba, Hitomi Yamagami, Ayumi Yamamoto, Yasuyuki Minakawa, Atsushi Okamoto, Atsushi Kasamatsu, Yosuke Sakamoto, Katsuhiro Uzawa, Yuichi Takiguchi, Hideki Tanzawa
Resistance to anticancer medications often leads to poor outcomes. The present study explored an effective approach for enhancing chemotherapy targeted against human cancer cells. Real-time quantitative real-time polymerase chain reaction (qRT-PCR) analysis revealed overexpression of members of aldo-keto reductase (AKR) 1C family, AKR1C1, AKR1C2, AKR1C3, and AKR1C4, in cisplatin, cis-diamminedichloroplatinum (II) (CDDP)-resistant human cancer cell lines, HeLa (cervical cancer cells) and Sa3 (oral squamous cell carcinoma cells)...
March 1, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28259921/high-expression-of-pink1-promotes-proliferation-and-chemoresistance-of-nsclc
#18
Rui Zhang, Jun Gu, Jie Chen, Jun Ni, Jieru Hung, Zhiwen Wang, Xiaochen Zhang, Jian Feng, Lili Ji
PTEN-induced putative kinase 1 (PINK1) was identified initially as a gene upregulated in cancer cells which regulates cellular processes of significance in cancer cell biology, including cell survival, stress resistance and the cell cycle. However, the expression and function of PINK1 in non-small cell lung cancer (NSCLC) has not been determined yet. We demonstrated high PINK1 expression in NSCLC tumor tissues and cell lines as assessed by western blot and immunohistochemistry (IHC) assays. In addition, IHC analysis revealed that PINK1 expression was associated with a more invasive tumor phenotype and poor prognosis...
March 2, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28255230/reversal-of-multidrug-resistance-in-human-lung-cancer-cells-by-delivery-of-3-octadecylcarbamoylacrylic-acid-cisplatin-based-liposomes
#19
Juan Song, Weifang Ren, Tingting Xu, Yi Zhang, Hongyu Guo, Shanshan Zhu, Li Yang
Liposome-based drug delivery system would be an innovative and promising candidate to circumvent multidrug resistance (MDR) of cisplatin (CDDP). However, the reversal efficacy of liposomal CDDP was severely impaired by weak cellular uptake and insufficient intracellular drug release. In this study, 3-octadecylcarbamoylacrylic acid-CDDP nanocomplex (OMI-CDDP-N)-based liposomes (OCP-L) with high cellular uptake and sufficient intracellular drug release were designed to circumvent MDR of lung cancer. OMI-CDDP-N was synthesized through a pH-sensitive monocarboxylato and an O→Pt coordinate bond, which is more efficient than CDDP...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28244322/impact-of-the-pd2spermine-chelate-on-osteosarcoma-metabolism-an-nmr-metabolomics-study
#20
Inês Lamego, M Paula M Marques, Iola F Duarte, Ana S Martins, Helena Oliveira, Ana M Gil
A metabolomics study of Pd2Spermine(Spm) on osteosarcoma MG-63 and osteoblastic HOb cells is presented to assess the impact of the potential palladium drug on cell metabolism compared with cisplatin (cDDP). Despite its higher cytotoxicity, Pd2Spm induced lower (and reversible) metabolic impact on MG-63 cells and the absence of apoptosis; conversely, it induced significant deviations in osteoblastic amino acid metabolism. However, when in combination with doxorubicin and methotrexate, Pd2Spm induced strong metabolic deviations on lipids, choline compounds, amino acids, nucleotides, and compounds related to antioxidative mechanisms (e...
March 14, 2017: Journal of Proteome Research
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