keyword
MENU ▼
Read by QxMD icon Read
search

Patient derived xenograft PDX

keyword
https://www.readbyqxmd.com/read/29330203/personalized-rna-medicine-for-pancreatic-cancer
#1
Maud-Emmanuelle Gilles, Liangliang Hao, Ling Huang, Rajesha Rupaimoole, Pedro P Lopez-Casas, Emilia Pulver, Jong Cheol Jeong, Senthil K Muthuswamy, Manuel Hidalgo, Sangeeta N Bhatia, Frank J Slack
PURPOSE: Since drug responses vary between patients, it is crucial to develop pre-clinical or co-clinical strategies that forecast patient response. In this study, we tested whether RNA-based therapeutics were suitable for personalized medicine by using patient-derived-organoid (PDO) and patient-derived-xenograft (PDX) models.  Experimental Design: We performed microRNA (miRNA) profiling of PDX samples to determine the status of miRNA deregulation in individual pancreatic ductal adenocarcinoma (PDAC) patients...
January 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29321663/lpa-signaling-is-regulated-through-the-primary-cilium-a-novel-target-in-glioblastoma
#2
Yuriy V Loskutov, Caryn L Griffin, Kristina M Marinak, Andrey Bobko, Naira V Margaryan, Werner J Geldenhuys, Jann N Sarkaria, Elena N Pugacheva
The primary cilium is a ubiquitous organelle presented on most human cells. It is a crucial signaling hub for multiple pathways including growth factor and G-protein coupled receptors. Loss of primary cilia, observed in various cancers, has been shown to affect cell proliferation. Primary cilia formation is drastically decreased in glioblastoma (GBM), however, the role of cilia in normal astrocyte or glioblastoma proliferation has not been explored. Here, we report that loss of primary cilia in human astrocytes stimulates growth rate in a lysophosphatidic acid (LPA)-dependent manner...
January 11, 2018: Oncogene
https://www.readbyqxmd.com/read/29317342/imaging-guided-photo-therapeutic-nanoporphyrin-synergized-hsp90-inhibitor-in-patient-derived-xenograft-bladder-cancer-model
#3
Qilai Long, Tzu-Yin Lin, Yee Huang, Xiaocen Li, Ai-Hong Ma, Hongyong Zhang, Randy Carney, Susan Airhart, Kit S Lam, Chong-Xian Pan, Yuanpei Li
Photodynamic therapy is a promising and effective non-invasive therapeutic approach for the treatment of bladder cancers. Therapies targeting HSP90 have the advantage of tumor cell selectivity and have shown great preclinical efficacy. In this study, we evaluated a novel multifunctional nanoporphyrin platform loaded with an HSP90 inhibitor 17AAG (NP-AAG) for use as a multi-modality therapy against bladder cancer. NP-AAG was efficiently accumulated and retained at bladder cancer patient-derived xenograft (PDX) over 7 days...
January 6, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29306208/alpha-2-dihydroxy-4-4-dimethoxydihydrochalcone-inhibits-cell-proliferation-invasion-and-migration-in-gastric-cancer-in-part-via-autophagy
#4
Boshun Wan, Junqiu Zhu, Qing Chang, Haihua Zhou, Zhan Shi, Li Min, YueJiao Cai, Honggeng Guan
Gastric cancer is a leading cause of mortality worldwide. Alpha, 2'-dihydroxy-4,4'-dimethoxydihydrochalcone is a type of limonoid mainly isolated from Cedrela odorata (Meliaceae) that has been shown to suppress cell proliferation in several human carcinoma cell lines. In this study, we investigated the anti-cancer ability of alpha, 2'-dihydroxy-4,4'-dimethoxydihydrochalcone and its underlying mechanism in MKN45 cells. Alpha, 2'-dihydroxy-4,4'-dimethoxydihydrochalcone induced excess reactive oxygen species (ROS) accumulation...
January 2, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29305587/consensus-molecular-subtypes-of-colorectal-cancer-are-recapitulated-in-in-vitro-and-in-vivo-models
#5
Janneke F Linnekamp, Sander R van Hooff, Pramudita R Prasetyanti, Raju Kandimalla, Joyce Y Buikhuisen, Evelyn Fessler, Prashanthi Ramesh, Kelly A S T Lee, Grehor G W Bochove, Johan H de Jong, Kate Cameron, Ronald van Leersum, Hans M Rodermond, Marek Franitza, Peter Nürnberg, Laura R Mangiapane, Xin Wang, Hans Clevers, Louis Vermeulen, Giorgio Stassi, Jan Paul Medema
Colorectal cancer (CRC) is a highly heterogeneous disease both from a molecular and clinical perspective. Several distinct molecular entities, such as microsatellite instability (MSI), have been defined that make up biologically distinct subgroups with their own clinical course. Recent data indicated that CRC can be best segregated into four groups called consensus molecular subtypes (CMS1-4), each of which has a unique biology and gene expression pattern. In order to develop improved, subtype-specific therapies and to gain insight into the molecular wiring and origin of these subtypes, reliable models are needed...
January 5, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29305553/preclinical-efficacy-of-daratumumab-in-t-cell-acute-lymphoblastic-leukemia-t-all
#6
Karen L Bride, Tiffaney L Vincent, Soo-Yeon Im, Richard Aplenc, David M Barrett, William L Carroll, Robin Carson, Yunfeng Dai, Meenakshi Devidas, Kimberly P Dunsmore, Tori Fuller, Tina Glisovic-Aplenc, Terzah M Horton, Stephen P Hunger, Mignon L Loh, Shannon L Maude, Elizabeth A Raetz, Stuart S Winter, Stephan A Grupp, Michelle L Hermiston, Brent L Wood, David T Teachey
As a consequence of acquired or intrinsic disease resistance, the prognosis for patients with relapsed or refractory T-cell acute lymphoblastic leukemia (T-ALL) is dismal. Novel, less toxic drugs are clearly needed. One of the most promising emerging therapeutic strategies for cancer treatment is targeted immunotherapy. Immune therapies have improved outcomes for patients with other hematologic malignancies including B-ALL, however no immune therapy has been successfully developed for T-ALL. We hypothesize targeting CD38 will be effective against T-ALL...
January 5, 2018: Blood
https://www.readbyqxmd.com/read/29301832/pharmacological-inhibition-of-nos-activates-ask1-jnk-pathway-augmenting-docetaxel-mediated-apoptosis-in-triple-negative-breast-cancer
#7
Daniel Dávila-González, Dong Soon Choi, Roberto R Rosato, Sergio Granados-Principal, John G Kuhn, Wen-Feng Li, Wei Qian, Wen Chen, Anthony J Kozielski, Helen H Wong, Bhuvanesh Dave, Jenny C Chang
PURPOSE: Chemoresistance in triple negative breast cancer (TNBC) is associated with the activation of a survival mechanism orchestrated by the endoplasmic reticulum (EnR) stress response and by inducible nitric oxide synthase (iNOS). Our aim was to determine the effects of pharmacological NOS-inhibition on TNBC. EXPERIMENTAL DESIGN: TNBC cell lines, SUM-159PT, MDA-MB-436, and MDA-MB-468, were treated with docetaxel and NOS-inibitor (L-NMMA) for 24, 48 and 72 hours...
January 4, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29298689/anti-gd2-4-1bb-chimeric-antigen-receptor-t-cell-therapy-for-the-treatment-of-chinese-melanoma-patients
#8
Jiayi Yu, Xiaowen Wu, Junya Yan, Huan Yu, Longwen Xu, Zhihong Chi, Xinan Sheng, Lu Si, Chuanliang Cui, Jie Dai, Meng Ma, Tianxiao Xu, Yan Kong, Jun Guo
BACKGROUND: Chimeric antigen receptor (CAR)-engineered T cells have demonstrated promising clinical efficacy in patients with B cell lymphoma. However, the application of CAR-T cell therapy in the treatment of other solid tumors has been limited. We incorporated 4-1BB into the anti-GD2 CAR-T cells to test their cytotoxicity in melanoma in vitro and in vivo. Moreover, we reported the expression of ganglioside GD2 in non-Caucasian melanoma populations for the first time, thus providing a basis for future clinical research...
January 3, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29296768/patient-derived-xenografts-of-low-grade-b-cell-lymphomas-demonstrate-roles-of-the-tumor-microenvironment
#9
W Richard Burack, Janice M Spence, John P Spence, Stephen A Spence, Philip J Rock, Gautam N Shenoy, Leonard D Shultz, Richard B Bankert, Steven H Bernstein
To discern features of non-Hodgkin lymphomas (NHL) that are autonomous from those that are shaped by the tumor environment (TE), we used patient-derived xenografts (PDX) to probe the effects on neoplastic cells of manipulating the TE. Properties of neoplastic cells that are often considered to be autonomous include their relative independence from stromal support, their relative survival and/or proliferation advantages compared with nonneoplastic cells, and their state of differentiation. Prior approaches to creation of PDX models likely select for neoplasms, which are the most capable of engraftment, potentially masking the effects of the TE...
July 11, 2017: Blood Advances
https://www.readbyqxmd.com/read/29291014/antitumor-effects-of-regorafenib-and-sorafenib-in-preclinical-models-of-hepatocellular-carcinoma
#10
Maria Kissel, Sandra Berndt, Lukas Fiebig, Simon Kling, Qunsheng Ji, Qingyang Gu, Tina Lang, Frank-Thorsten Hafner, Michael Teufel, Dieter Zopf
The purpose of this study was to investigate the antitumor activity of regorafenib and sorafenib in preclinical models of HCC and to assess their mechanism of action by associated changes in protein expression in a HCC-PDX mouse model. Both drugs were administered orally once daily at 10 mg/kg (regorafenib) or 30 mg/kg (sorafenib), which recapitulate the human exposure at the maximally tolerated dose in mice. In a H129 hepatoma model, survival times differed significantly between regorafenib versus vehicle (p=0...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290814/dual-targeting-of-acute-leukemia-and-supporting-niche-by-cxcr4-directed-theranostics
#11
Stefan Habringer, Constantin Lapa, Peter Herhaus, Margret Schottelius, Rouzanna Istvanffy, Katja Steiger, Julia Slotta-Huspenina, Andreas Schirbel, Heribert Hänscheid, Stefan Kircher, Andreas K Buck, Katharina Götze, Binje Vick, Irmela Jeremias, Markus Schwaiger, Christian Peschel, Robert Oostendorp, Hans-Jürgen Wester, Götz-Ulrich Grigoleit, Ulrich Keller
C-X-C chemokine receptor 4 (CXCR4) is a transmembrane receptor with pivotal roles in cell homing and hematopoiesis. CXCR4 is also involved in survival, proliferation and dissemination of cancer, including acute lymphoblastic and myeloid leukemia (ALL, AML). Relapsed/refractory ALL and AML are frequently resistant to conventional therapy and novel highly active strategies are urgently needed to overcome resistance. Methods: We used patient-derived (PDX) and cell line-based xenograft mouse models of ALL and AML to evaluate the efficacy and toxicity of a CXCR4-targeted endoradiotherapy (ERT) theranostic approach...
2018: Theranostics
https://www.readbyqxmd.com/read/29285283/diffusion-weighted-mri-derived-adc-values-reflect-collagen-i-content-in-pdx-models-of-uterine-cervical-cancer
#12
Anette Hauge, Catherine S Wegner, Jon-Vidar Gaustad, Trude G Simonsen, Lise Mari K Andersen, Einar K Rofstad
Apparent diffusion coefficient (ADC) values derived from diffusion-weighted magnetic resonance imaging (DW-MRI) are known to reflect the cellular environment of biological tissues. However, emerging evidence accentuates the influence of stromal elements on ADC values. The current study sought to elucidate whether a correlation exists between ADC and the fraction of collagen I-positive tissue across different tumor models of uterine cervical cancer. Early and late generation tumors of four patient-derived xenograft (PDX) models of squamous cell carcinoma (BK-12, ED-15, HL-16, and LA-19) were included...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29284644/cox-2-seh-dual-inhibitor-ptupb-potentiates-the-anti-tumor-efficacy-of-cisplatin
#13
Fuli Wang, Hongyong Zhang, Ai-Hong Ma, Weimin Yu, Maike Zimmermann, Jun Yang, Sung Hee Hwang, Daniel Zhu, Tzu-Yin Lin, Michael Malfatti, Kenneth W Turteltaub, Paul T Henderson, Susan Airhart, Bruce D Hammock, Jianlin Yuan, Ralph W de Vere White, Chong-Xian Pan
Cisplatin-based therapy is highly toxic, but moderately effective in most cancers. Concurrent inhibition of cyclooxygenase-2 (COX-2) and soluble epoxide hydrolase (sEH) results in anti-tumor activity, and has organ protective effects. The goal of this study was to determine the anti-tumor activity of PTUPB, an orally bioavailable COX-2/sEH dual inhibitor, in combination with cisplatin and gemcitabine (GC) therapy. NSG mice bearing bladder cancer patient-derived xenografts were treated with vehicle, PTUPB, cisplatin, GC or combinations thereof...
December 28, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29277895/enzalutamide-and-cxcr7-inhibitor-combination-treatment-suppresses-cell-growth-and-angiogenic-signaling-in-castration-resistant-prostate-cancer-models
#14
Yong Luo, Abul Kalam Azad, Styliani Karanika, Spyridon P Basourakos, Xuemei Zuo, Jianxiang Wang, Luan Yang, Guang Yang, Dimitrios Korentzelos, Jianhua Yin, Sanghee Park, Penglie Zhang, James J Campbell, Thomas J Schall, Guangwen Cao, Likun Li, Timothy C Thompson
Previous studies have shown that increased levels of chemokine receptor CXCR7 are associated with the increased invasiveness of prostate cancer cells. We now show that CXCR7 expression is upregulated in VCaP and C4-2B cells after enzalutamide (ENZ) treatment. ENZ treatment induced apoptosis (sub-G1) in VCaP and C4-2B cells, and this effect was further increased after combination treatment with ENZ and CCX771, a specific CXCR7 inhibitor. The levels of p-EGFR (Y1068), p-AKT (T308) and VEGFR2 were reduced after ENZ and CCX771 combination treatment compared to single agent treatment...
December 26, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29277785/establishment-of-a-patient-derived-xenograft-for-development-of-personalized-her2-targeting-therapy-in-gastric-cancer
#15
Seol Hwa Shin, Seok Soon Park, Eun Jin Ju, Jin Park, Eun Jeong Ko, Jung Jin Hwang, Young-Ah Suh, Se Jin Jang, Jung Shin Lee, Bong-Kook Ko, Kyu-Tae Kim, Jong-Seo Lee, Si Yeol Song, Seong-Yun Jeong, Eun Kyung Choi
BACKGROUND/AIM: To maximize success rate for development of HER2-targeted therapeutics, patient-derived xenograft (PDX) models reflecting HER2-positive gastric cancer (HER2+ GC) patients were established. MATERIALS AND METHODS: GC tissues obtained from surgery of GC patients were implanted into immune-deficient mice, and tumor tissue of HER2+ PDXs were verified of the patient-mimic HER2 expression by immunohistochemistry and explored for the feasibility by testing with Herceptin, the approved therapeutics and novel HER2 antibody therapeutics being developed...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29277771/effects-of-sirna-silencing-of-tug1-and-lcal6-long-non-coding-rnas-on-patient-derived-xenograft-of-non-small-cell-lung-cancer
#16
Tian Fang, Hairong Huang, Xiaoyou Li, Jing Liao, Zhijian Yang, Robert M Hoffman, X I Cheng, Lei Liang, Wenjuan Hu, Shifeng Yun
BACKGROUND/AIM: The aim of the present study was to establish a patient-derived xenograft (PDX) mouse model of non-small cell lung cancer (NSCLC) and investigate the anti-tumor efficacy of silencing of TUG1 and LCAL6 long non-coding RNA in the PDX model. MATERIALS AND METHODS: PDXs were established by subcutaneously implanting NSCLC surgical tumor fragments into immunodeficient mice. PDX characterization was performed by histopathological, immunohistochemical and real-time polymerase chain reaction (RT-PCR) analyses for NSCLC subtype-specific markers and expression of LCAL6 and TUG1...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29248719/usp9x-promotes-survival-in-human-pancreatic-cancer-and-its-inhibition-suppresses-pancreatic-ductal-adenocarcinoma-in-vivo-tumor-growth
#17
Anupama Pal, Michele Dziubinski, Marina Pasca Di Magliano, Diane M Simeone, Scott Owens, Dafydd Thomas, Luke Peterson, Harish Potu, Moshe Talpaz, Nicholas J Donato
Usp9x has emerged as a potential therapeutic target in some hematologic malignancies and a broad range of solid tumors including brain, breast, and prostate. To examine Usp9x tumorigenicity and consequence of Usp9x inhibition in human pancreatic tumor models, we carried out gain- and loss-of-function studies using established human pancreatic tumor cell lines (PANC1 and MIAPACA2) and four spontaneously immortalized human pancreatic patient-derived tumor (PDX) cell lines. The effect of Usp9x activity inhibition by small molecule deubiquitinase inhibitor G9 was assessed in 2D and 3D culture, and its efficacy was tested in human tumor xenografts...
December 14, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29245078/analysis-of-nras-gain-in-657-patients-with-melanoma-and-evaluation-of-its-sensitivity-to-a-mek-inhibitor
#18
Junya Yan, Xiaowen Wu, Jiayi Yu, Huan Yu, Tianxiao Xu, Kevin M Brown, Xue Bai, Jie Dai, Meng Ma, Huan Tang, Lu Si, Zhihong Chi, Xinan Sheng, Chuanliang Cui, Yan Kong, Jun Guo
BACKGROUND: Neuroblastoma rat-sarcoma (NRAS) mutations have been described in Chinese patients with melanoma. However, the status and the clinical significance of NRAS gain have not been investigated on a large scale. METHODS: A total of 657 melanoma samples were included in the study. NRAS copy number was examined using the QuantiGene Plex DNA assay. The sensitivities of cell lines and patient-derived xenograft (PDX) models containing NRAS gain to a MAP/ERK kinase (MEK) inhibitor (binimetinib) were also evaluated...
December 11, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29242606/murine-stroma-adopts-a-human-like-metabolic-phenotype-in-the-pdx-model-of-colorectal-cancer-and-liver-metastases
#19
Arnaud Blomme, Gaetan Van Simaeys, Gilles Doumont, Brunella Costanza, Justine Bellier, Yukihiro Otaka, Félicie Sherer, Pierre Lovinfosse, Sébastien Boutry, Ana Perez Palacios, Edwin De Pauw, Touko Hirano, Takehiko Yokobori, Roland Hustinx, Akeila Bellahcène, Philippe Delvenne, Olivier Detry, Serge Goldman, Masahiko Nishiyama, Vincent Castronovo, Andrei Turtoi
Cancer research is increasingly dependent of patient-derived xenograft model (PDX). However, a major point of concern regarding the PDX model remains the replacement of the human stroma with murine counterpart. In the present work we aimed at clarifying the significance of the human-to-murine stromal replacement for the fidelity of colorectal cancer (CRC) and liver metastasis (CRC-LM) PDX model. We have conducted a comparative metabolic analysis between 6 patient tumors and corresponding PDX across 4 generations...
December 15, 2017: Oncogene
https://www.readbyqxmd.com/read/29242316/colorectal-cancer-consensus-molecular-subtypes-translated-to-preclinical-models-uncover-potentially-targetable-cancer-cell-dependencies
#20
Anita Sveen, Jarle Bruun, Peter W Eide, Ina A Eilertsen, Lorena Ramirez, Astrid Murumägi, Mariliina A Arjama, Stine A Danielsen, Kushtrim Kryeziu, Elena Elez, Josep Tabernero, Justin Guinney, Hector G Palmer, Arild Nesbakken, Olli Kallioniemi, Rodrigo Dienstmann, Ragnhild A Lothe
PURPOSE: Response to standard oncological treatment is limited in colorectal cancer (CRC). The gene expression-based consensus molecular subtypes (CMS) provide a new paradigm for stratified treatment and drug repurposing, however, drug discovery is currently limited by the lack of translation of CMS to preclinical models. EXPERIMENTAL DESIGN: We analyzed CMS in primary CRCs, cell lines and patient-derived xenografts (PDXs). For classification of preclinical models, we developed an optimized classifier enriched for cancer cell-intrinsic gene expression signals, and performed high-throughput in vitro drug screening (n=459 drugs) to analyze subtype-specific drug sensitivities...
December 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
keyword
keyword
58003
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"