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https://www.readbyqxmd.com/read/28535587/bicyclol-exerts-an-anti-tumor-effect-via-ros-mediated-endoplasmic-reticulum-stress-in-human-renal-cell-carcinoma-cells
#1
Jing Wu, Weichao Zheng, Ling Rong, Yingru Xing, Dong Hu
Renal cell carcinoma (RCC) is the most common subtype of kidney cancer. Currently, there is a lack of efficient treatment for RCC. Bicyclol, an anti-hepatitis drug, has been demonstrated to possess anti-tumor properties. However, the effect of bicyclol in RCC remains elusive. Therefore, the aim of this study is to investigate the biological effects of bicyclol on RCC and the underlying mechanisms. The data from this study indicated that bicyclol markedly induced cell apoptosis and cell cycle arrest and increased the production of reactive oxygen species (ROS) in RCC cells...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28534978/demethylzeylasteral-ameliorates-inflammation-in-a-rat-model-of-unilateral-ureteral-obstruction-through-inhibiting-activation-of-the-nf%C3%A2-%C3%AE%C2%BAb-pathway
#2
Qiang Wang, Yanmei Xiao, Tongwei Liu, Haibo Yuan, Chunwu Li
The present study investigated the pharmacodynamic role and therapeutic mechanism of demethylzeylasteral in the suppression of inflammation in a rat model of unilateral ureteral obstruction and reduction in nuclear factor (NF)‑κB pathway activity. The rats in the unilateral ureteral obstruction model were treated with 30‑120 mg/kg demethylzeylasteral for 8 weeks. The activities of tumor necrosis factor (TNF)‑α, interleukin (IL)‑6 and caspase‑3/9, and the protein expression levels of cyclooxygenase (COX)‑2 and intercellular adhesion molecule‑1 (ICAM‑1) and NF‑κB p65 were analyzed using ELISA kits and western blot analyses, respectively...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28533936/synthesis-and-evaluation-of-64-cu-psma-617-targeted-for-prostate-specific-membrane-antigen-in-prostate-cancer
#3
Can Cui, Masayuki Hanyu, Akiko Hatori, Yiding Zhang, Lin Xie, Tomoya Ohya, Masami Fukada, Hisashi Suzuki, Kotaro Nagatsu, Cuiping Jiang, Rui Luo, Guoqiang Shao, Mingrong Zhang, Feng Wang
We radiolabeled a ligand, PSMA-617, of prostate-specific membrane antigen (PSMA) with copper-64 ((64)Cu), to evaluate the metabolism, biodistribution, and potential of [(64)Cu]PSMA-617 for PET imaging of prostate cancer. [(64)Cu]PSMA-617 was synthesized by heating PSMA-617 with [(64)Cu]CuCl2 in buffer solution at 90°C for 5 min. In vitro uptake was determined in two cell lines of prostate cancer. In vivo regional distributions were determined in normal and tumor-bearing mice. High radiolabeling efficiency of (64)Cu for PSMA-617 yielded [(64)Cu]PSMA-617 with >99% radiochemical purity...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28533271/vhl-inactivation-in-precancerous-kidney-cells-induces-an-inflammatory-response-via-er-stress-activated-ire1%C3%AE-signaling
#4
Chan-Yen Kuo, Chih-Hung Lin, Tien Hsu
Mutations and epigenetic inactivation of the tumor suppressor gene von Hippel-Lindau (VHL) are major causes of clear-cell renal cell carcinoma (ccRCC) that may originate from chronic inflammation. However, the role of VHL loss-of-function in the development of ccRCC via inflammation remains poorly understood. VHL mutant cells exhibit metabolic abnormalities that can cause chronic endoplasmic reticulum (ER) stress and unfolded protein response (UPR). We hypothesize that unresolved ER stress induces the inflammatory responses observed in ccRCC...
May 22, 2017: Cancer Research
https://www.readbyqxmd.com/read/28533051/features-of-ipsilateral-renal-recurrences-after-partial-nephrectomy-a-proposal-of-a-pathogenetic-classification
#5
Alessandro Antonelli, Maria Furlan, Regina Tardanico, Simona Fisogni, Mario Sodano, Francesca Carobbio, Sandra Belotti, Alberto Cozzoli, Tiziano Zanotelli, Claudio Simeone
BACKGROUND: Poor data are reported on the pathogenesis of ipsilateral relapse (IR) after partial nephrectomy (PN). The objective of this study was to investigate features of IR after PN with the intention to propose a pathogenetic classification. MATERIALS AND METHODS: Retrospective consultation of an institutional database that stores the data of 683 patients submitted to PN since 1993. The clinical, radiological, and follow-up data of the cases submitted to salvage nephrectomy due to an IR were analyzed...
April 26, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28532095/antitumor-activity-and-safety-evaluation-of-nanaparticle-based-delivery-of-quercetin-through-intravenous-administration-in-mice
#6
Jian Li, Ming Shi, Baoling Ma, Ruixu Niu, Haizhao Zhang, Li Kun
The present study focused on the inhibition effects and the safety evaluation of the quercetin when it was loaded into the nanoliposomes on cervical cancer in vitro and in vivo. Quercetin loaded nanoliposomes (Que-NLs) were first prepared by thin film hydration method and the characterizations of Que-NLs were measured with TEM and dynamic light scattering (DLS) techniques. Then the anti-cervical cancer efficiencies were evaluated by MTT and U14 tumor-bearing mice models in vitro and in vivo respectively. The body changes, organ index, biochemical criterions and histopathological of livers and kidneys in tumor-bearing mice were further assayed to evaluate the safety of Que-NLs...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28529539/jiangtang-decoction-ameliorate-diabetic-nephropathy-through-the-regulation-of-pi3k-akt-mediated-nf-%C3%AE%C2%BAb-pathways-in-kk-ay-mice
#7
Jin-Ni Hong, Wei-Wei Li, Lin-Lin Wang, Hao Guo, Yong Jiang, Yun-Jia Gao, Peng-Fei Tu, Xue-Mei Wang
BACKGROUND: Jiangtang decoction (JTD) is a China patented drug which contains Euphorbia humifusa Willd, Salvia miltiorrhiza Bunge, Astragalus mongholicus Bunge, Anemarrhena asphodeloides Bunge, and Coptis chinensis Franch. For decades, it has also been used clinically to treat diabetic nephropathy (DN) effectively; however, the associated mechanisms remain unknown. Thus, the present study aimed to examine the protective efficacy of JTD in DN and elucidate the underlying molecular mechanisms...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28529267/endometrial-adenocarcinoma-with-choriocarcinomatous-differentiation-in-the-uterus-of-a-goat
#8
Masashi Kawashima, Risa Segawa, Toshinori Yoshida, Hirotada Murayama, Rei Nagahara, Masayuki Kimura, Natsumi Endo, Tomomi Tanaka, Makoto Shibutani
An 11-year-old female goat had invasive and metastatic endometrial adenocarcinoma in the uterus. There was a notable proliferation of endometrial epithelial cells in a tubular growth pattern, with a desmoplastic response. The endometrial epithelial tumor cells metastasized to the kidney, liver and lung. In contrast to the primary and metastatic tumor cells, pleomorphic tumor cells with a choriocarcinoma-like growth pattern infiltrated the mesometrium. Cell proliferation activity was high in both types of tumor cells...
May 19, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28529243/over-expression-of-mir-21-and-lower-pten-levels-in-wilms-tumor-with-aggressive-behavior
#9
Mingyu Cui, Wei Liu, Lijuan Zhang, Feng Guo, Yang Liu, Fang Chen, Ting Liu, Rui Ma, Rongde Wu
Wilms' tumor (WT) is the most common pediatric kidney tumor. MiR-21 is one of the most frequently overexpressed microRNAs in solid tumors, while phosphatase and tensin homolog deleted from chromosome 10 (PTEN) is the most highly mutated tumor suppressor gene. The aim of this study was to investigate the relationship between miR-21 and PTEN in WT. The expression levels of miR-21 and the PTEN protein were determined by qRT-PCR and Western blot analyses in WT specimens, respectively. In WT tissues, the miR-21 expression levels were significantly higher and the PTEN protein levels were significantly lower, compared to the adjacent non-tumorous renal tissues...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28527702/crispr-cas9-induced-disruption-of-wt1a-and-wt1b-reveals-their-different-roles-in-kidney-and-gonad-development-in-nile-tilapia
#10
Dongneng Jiang, Jinlin Chen, Zheng Fan, Dejie Tan, Jiue Zhao, Hongjuan Shi, Zhilong Liu, Wenjing Tao, Minghui Li, Deshou Wang
Wilms tumor 1 (Wt1) is an essential factor for urogenital system development. Teleosts have two wt1s, named as wt1a and wt1b. In this study, the expression pattern of wt1a and wt1b and their functions on the urogenital system were analyzed by in situ hybridization and CRISPR/Cas9. wt1a was found to be expressed in the glomerulus at 3 dah (days after hatching), earlier than wt1b. wt1a and wt1b were simultaneously expressed in the somatic cells of gonads at 3 dah, while their cell locations were similar, but not identical in adult fish gonads...
May 17, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28527294/activation-of-hypoxia-signaling-in-stromal-progenitors-impairs-kidney-development
#11
Katharina Gerl, Dominik Steppan, Michaela Fuchs, Charlotte Wagner, Carsten Willam, Armin Kurtz, Birgül Kurt
Intrauterine hypoxia is a reason for impaired kidney development. The cellular and molecular pathways along which hypoxia exerts effects on nephrogenesis are not well understood. They are likely triggered by hypoxia-inducible transcription factors (HIFs), and their effects appear to be dependent on the cell compartment contributing to kidney formation. In this study, we investigated the effects of HIF activation in the developing renal stroma, which also essentially modulates nephron development from the metanephric mesenchyme...
May 17, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28527194/biodistribution-and-excretion-of-colloidal-gold-nanoparticles-after-intravenous-injection-effects-of-particle-size
#12
Issei Takeuchi, Sho Nobata, Naoto Oiri, Keishiro Tomoda, Kimiko Makino
BACKGROUND: Inorganic gold nanoparticles (NPs) have a huge potential in targeted drug delivery. Simple preparation and surface modification procedure with their special physicochemical properties of gold NPs attract their use such as tumor targeting and the detection of cancerous cell. OBJECTIVE: Various studies were reported, however, details of biodistribution profile of gold NPs were not enough evaluated. We have studied biodistribution profile of gold NPs having various particle sizes (20, 50 and 100 nm)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28526733/discovery-and-optimization-of-hkt288-a-cadherin-6-targeting-adc-for-the-treatment-of-ovarian-and-renal-cancer
#13
Carl U Bialucha, Scott D Collins, Xiao Li, Parmita Saxena, Xiamei Zhang, Clemens Dürr, Bruno LaFont, Pierric Prieur, Yeonju Shim, Rebecca Mosher, David Lee, Lance Ostrom, Tiancen Hu, Sanela Bilic, Ivana Liric Rajlic, Vladimir Capka, Wei Jiang, Joel P Wagner, GiNell Elliott, Artur Veloso, Jessica C Piel, Meghan M Flaherty, Keith G Mansfield, Emily K Meseck, Tina Rubic-Schneider, Anne Serdakowski London, William R Tschantz, Markus Kurz, Duc Nguyen, Aaron Bourret, Matthew J Meyer, Jason E Faris, Mary J Janatpour, Vivien W Chan, Nicholas C Yoder, Kalli C Catcott, Molly A McShea, Xiuxia Sun, Hui Gao, Juliet Williams, Francesco Hofmann, Jeffrey A Engelman, Seth A Ettenberg, William R Sellers, Emma Lees
Despite an improving therapeutic landscape, significant challenges remain in treating the majority of advanced ovarian and renal cancer patients. We identified the cell-cell adhesion molecule cadherin-6 (CDH6) as a lineage gene having significant differential expression in ovarian and kidney cancer. HKT288 is an optimized CDH6-targeting DM4-based antibody drug conjugate (ADC) developed for the treatment of these diseases. Our study provides mechanistic evidence supporting the importance of linker choice for optimal anti-tumor activity and highlights CDH6 as a novel antigen for biotherapeutic development...
May 19, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28525943/effect-of-au-dextran-nps-as-anti-tumor-agent-against-eac-and-solid-tumor-in-mice-by-biochemical-evaluations-and-histopathological-investigations
#14
Dalia Medhat, Jihan Hussein, Mehrez E El-Naggar, Mohamed F Attia, Mona Anwar, Yasmine Abdel Latif, Hoda F Booles, Safaa Morsy, Abdel Razik Farrag, Wagdy K B Khalil, Zakaria El-Khayat
Dextran-capped gold nanoparticles (Au-dextran NPs) were prepared exploiting the natural polysaccharide polymer as both reducing and stabilizing agent in the synthesis process, aiming at studying their antitumor effect on solid carcinoma and EAC-bearing mice. To this end, Au-dextran NPs were designed via simple eco-friendly chemical reaction and they were characterized revealing the monodispersed particles with narrow distributed size of around 49nm with high negative charge. In vivo experiments were performed on mice...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28523611/exogenous-phosphatidylcholine-supplementation-retrieve-aluminum-induced-toxicity-in-male-albino-rats
#15
Asmaa Fahmy Khafaga
This study investigated the ameliorative potential of exogenous phosphatidylcholine (PC) against aluminum-induced toxicity in male albino rats. Four groups of rats were used for this study (N = 8): group I served as the control, group II (PC treated) received L-α-phosphatidylcholine (egg yolk-derived) 100 mg/kg bwt/day orally, group III (aluminum treated) received aluminum chloride 100 mg/kg bwt/day orally, and group VI (aluminum + PC treated) received similar oral dose of aluminum and PC (100 mg/kg bwt/day)...
May 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28522149/measuring-absolute-blood-perfusion-in-mice-using-dynamic-contrast-enhanced-ultrasound
#16
Abbas Shirinifard, Suresh Thiagarajan, Melissa D Johnson, Christopher Calabrese, András Sablauer
We investigated the feasibility of estimating absolute tissue blood perfusion using dynamic contrast-enhanced ultrasound (CEUS) imaging in mice. We developed a novel method of microbubble administration and a model-free approach to estimate absolute kidney perfusion, and explored the kidney as a reference organ to estimate absolute perfusion of a neuroblastoma tumor. We performed CEUS on the kidneys of CD1 nude mice using the VisualSonics VEVO 2100 imaging system. We estimated individual kidney blood perfusion using the burst-replenishment (BR) technique...
May 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28521424/reninoma-coexisting-with-adrenal-adenoma-during-pregnancy-a-case-report
#17
Mei Xue, Yan Chen, Jin Zhang, Youyan Guan, Lin Yang, Bing Wu
Reninoma is a rare form of secondary hypertension. The present study reported a case of reninoma that coexisted with an adrenal adenoma in a young female with secondary hypertension during pregnancy. The patient, a 31-year-old female exhibiting hypertension for >1 year, developed a mass in the right adrenal gland, which was detected by an ultrasound scan in the 33rd gestational week. In addition, a well-defined solid mass on the left kidney was detected by a magnetic resonance imaging scan1 month subsequent to the termination of the pregnancy...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521298/insulin-like-growth-factor-2-axis-supports-the-serum-independent-growth-of-malignant-rhabdoid-tumor-and-is-activated-by-microenvironment-stress
#18
Ting Li, Jin Wang, Pengfei Liu, Jiadong Chi, Han Yan, Lei Lei, Zexing Li, Bing Yang, Xi Wang
Malignant rhabdoid tumors (MRTs) are rare, lethal, pediatric tumors predominantly found in the kidney, brain and soft tissues. MRTs are driven by loss of tumor suppressor SNF5/INI1/SMARCB1/BAF47. The prognosis of MRT is poor using currently available treatments, so new treatment targets need to be identified to expand treatment options for patients experiencing chemotherapy resistance. The growth hormone insulin-like growth factor 2 (IGF2) signaling pathway is a promising target to overcome drug resistance in many cancers...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28521173/thymoquinone-ameliorates-renal-damage-in-unilateral-ureteral-obstruction-in-rats
#19
Sara Hosseinian, Abolfazl Khajavi Rad, Alireza Ebrahimzadeh Bideskan, Mohammad Soukhtanloo, Hamidreza Sadeghnia, Mohammad Naser Shafei, Fatemeh Motejadded, Reza Mohebbati, Samira Shahraki, Farimah Beheshti
BACKGROUND: It is well established that renin-angiotensin system (RAS) play a central role in pathophysiology of renal damage following unilateral ureteral obstruction (UUO). The present study investigated the effects of thymoquinone and RAS blockade on renal tissue damage and renal expression of angiotensin II after UUO in rats. METHODS: Forty male rats were divided to five groups: Sham-operated group, UUO group and rats with UUO treated with losartan, captopril and thymoquinone...
March 14, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28520410/proteolytically-stable-cyclic-decapeptide-for-breast-cancer-cell-targeting
#20
Yogita Raghuwanshi, Hashem Rajab Etayash, Rania Soudy, Igor Paiva, Afsaneh Lavasanifar, Kamaljit Kaur
Starting with a previously reported linear breast cancer targeting decapeptide WxEAAYQkFL, here we report the synthesis of a novel cyclic peptide analogue cyclicWXEAAYQkFL. The N- to C-terminus amide cyclized peptide with one D-amino acid (k) displayed higher uptake by breast cancer cells, with minimal uptake by the non-cancerous cells compared to the linear peptide with two D-amino acids (x and k), and was stable toward proteolytic degradation. When immobilized on gold microcantilever surface, the cyclic peptide was able to capture breast cancer cells specifically and sense samples with ≥25 cancer cells/mL...
May 18, 2017: Journal of Medicinal Chemistry
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