Filtered By:
Procedure: Gastroschisis Repair
Therapy: Radiation Therapy

This page shows you your search results in order of relevance.

Order by Relevance | Date

Total 30 results found since Jan 2013.

Abstract B42: Silencing of DNA repair proteins with ECO/siRNA nanoparticles for the enhancement of radiation response in glioblastoma
In this study we investigate the use of these nanoparticles to deliver siRNA to inhibit ATM and DNApk activity and enhance radiation response in both glioma and glioma stem cell lines.Established glioma (U251) and glioma stem cell (NSC11) lines were used to evaluate the effectiveness of ECO nanoparticle delivery of siRNA in vitro . Cellular uptake of ECO nanoparticles loaded with fluorescent siRNA was assessed using flow cytometry and fluorescent microscopy, demonstrating the rapid uptake of ECO/siRNA nanoparticles in comparison to commercially available transfection agents. Protein and mRNA analyses revealed the kinetics ...
Source: Cancer Research - January 15, 2017 Category: Cancer & Oncology Authors: Jennifer A. Lee, Nadia Ayat, Anita Tandle, Zheng-Rong Lu, Kevin Camphausen Tags: Drug Delivery and Nanomedicine Source Type: research

Cancers, Vol. 12, Pages 3260: Improving Radiation Response in Glioblastoma Using ECO/siRNA Nanoparticles Targeting DNA Damage Repair
Camphausen Radiation therapy is a mainstay in the standard of care for glioblastoma (GBM), thus inhibiting the DNA damage response (DDR) is a major strategy to improve radiation response and therapeutic outcomes. Small interfering RNA (siRNA) therapy holds immeasurable potential for the treatment of GBM, however delivery of the siRNA payload remains the largest obstacle for clinical implementation. Here we demonstrate the effectiveness of the novel nanomaterial, ECO (1-aminoethylimino[bis(N-oleoylcysteinylaminoethyl) propionamide]), to deliver siRNA targeting DDR proteins ataxia telangiectasia mutated and DNA-dependen...
Source: Cancers - November 4, 2020 Category: Cancer & Oncology Authors: Jennifer A. Lee Nadia Ayat Zhanhu Sun Philip J. Tofilon Zheng-Rong Lu Kevin Camphausen Tags: Article Source Type: research

NT-16 * NANOPARTICLE-MEDIATED DELIVERY OF ANTI-Ape1 siRNA SENSITIZES PEDIATRIC BRAIN TUMOR CELLS TO RADIATION THERAPY BY INHIBITING DNA REPAIR
Pediatric brain tumors are the leading cause of death in children, and survival is frequently accompanied by one or more radiation-induced adverse developmental and psychosocial sequelae. Radiotherapy (RT) is an integral component of the treatment for medulloblastoma (MB) and the only effective adjuvant therapy for ependymoma (EP). Therefore, there is an urgent need to develop strategies to enhance the tumoricidal action of RT while sparing adjacent normal tissue. The multifunctional DNA repair protein Ape1/Ref-1 has been implicated in conferring radiation resistance in pediatric brain tumors. However, inhibiting Ape1 acti...
Source: Neuro-Oncology - November 3, 2014 Category: Cancer & Oncology Authors: Kievit, F., Stephen, Z., Wang, K., Dayringer, C., Ellenbogen, R., Silber, J., Zhang, M. Tags: NOVEL THERAPEUTICS (CLINICAL AND/OR LABORATORY RESEARCH) Source Type: research

Abstract 3943: siRNA-mediated HuR silencing sensitizes triple-negative breast cancer cells to radiation therapy
HuR is a ubiquitously expressed member of the Elav/Hu family of RNA-binding proteins which can associate with mRNAs containing AU-rich elements in their 3′-untranslated regions. It is predominantly a nuclear protein that translocates to the cytoplasm in response to stress signals and stabilizes mRNAs encoding proteins implicated in cell proliferation, angiogenesis, apoptosis, and stress response. Studies examining HuR expression in human cancers indicated that elevated cytoplasmic HuR expression is associated with a high histologic grade, large tumor size, and poor survival of patients with cancer, leading to the hypothe...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Basalingappa, K. M., Mehta, M., Griffith, J. N., Muralidharan, R., Gorospe, M., Ramesh, R., Munshi, A. Tags: Tumor Biology Source Type: research

Auranofin, an Anti-rheumatic Gold Drug, Aggravates the Radiation-Induced Acute Intestinal Injury in Mice
Conclusion In this study, we found that a non-toxic dose of auranofin significantly aggravated the severity of the radiation-induced intestinal injury. This suggests that auranofin treatment can be an independent factor that influences the risk of intestinal complications after pelvic or abdominal radiotherapy. Ethics Statement All the protocols used in this study were approved by the Institutional Animal Care and Use Committee of the Korean Institute of Radiological and Medical Sciences (IACUC permit number: KIRAMS217-0007). Author Contributions H-JL, JS, and Y-BL designed the experiments. EL and JK conducted the exp...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

RNF8 plays an important role in the radioresistance of human nasopharyngeal cancer cells in vitro.
Authors: Wang M, Chen X, Chen H, Zhang X, Li J, Gong H, Shiyan C, Yang F Abstract Tumor residue or recurrence is common after radiation therapy for nasopharyngeal cancer (NPC) since the tumor cells can repair irradiation-induced DNA damage. The ubiquitination cascade mediates the assembly of repair and signaling proteins at sites of DNA double-strand breaks (DSBs). Ring finger protein 8 (RNF8) is an E3 ubiquitin ligase that triggers ubiquitination at the site of DSBs. The present study aimed to identify whether and how RNF8 small interfering RNA (siRNA) treatment enhances the radiosensitivity of irradiated human ...
Source: Oncology Reports - May 9, 2015 Category: Cancer & Oncology Tags: Oncol Rep Source Type: research

Abstract 854: Inhibition of PRMT5 results in radiosensitization in lung cancer cell lines
Conclusion: PRMT5 inhibition by siRNA or its specific inhibitors lead to radiosensitivity in A549 lung cancer cell line. This effect may be partially dependent on p53-dependent cell cycle arrest. Further work to inhibit PRMT5 in other lung cancer cell lines with different p53 activities will be investigated. Citation Format: Smitha Sharma, X Wu, P Smith, N Denko, C Li, H Lai, F Yan, K Shilo, A Chakravarti, S Sif, R Baiocchi, G Otterson, Meng Xu-Welliver. Inhibition of PRMT5 results in radiosensitization in lung cancer cell lines. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Sharma, S., Wu, X., Smith, P., Denko, N., Li, C., Lai, H., Yan, F., Shilo, K., Chakravarti, A., Sif, S., Baiocchi, R., Otterson, G., Xu-Welliver, M. Tags: Clinical Research (Excluding Clinical Trials) Source Type: research

DCLK1 Inhibition Sensitizes Colorectal Cancer Cells to Radiation Treatment
Int J Mol Cell Med. 2021 Winter;10(1):23-33. doi: 10.22088/IJMCM.BUMS.10.1.23. Epub 2021 May 22.ABSTRACTColorectal cancer (CRC) is one of the most prevalent diagnosed cancers and a common cause of cancer-related mortality. Despite effective clinical responses, a large proportion of patients undergo resistance to radiation therapy. Therefore, the identification of efficient targeted therapy strategies would be beneficial to overcome cancer radioresistance. Doublecortin-like kinase 1 (DCLK1) is an intestinal and pancreatic stem cell marker that showed overexpression in a variety of cancers. The transfection of DCLK1 siRNA to...
Source: Molecular Medicine - July 16, 2021 Category: Molecular Biology Authors: Chiman Mohammadi Ali Mahdavinezhad Massoud Saidijam Fatemeh Bahreini Abdolazim Sedighi Pashaki Mohammad Hadi Gholami Rezvan Najafi Source Type: research

Rt-40 * the down-regulation of h-ferritin as an adjuvant therapy in human glioma
This study supports the potential of H-ferritin siRNA as an adjuvant therapy in glioma treatment.
Source: Neuro-Oncology - November 3, 2014 Category: Cancer & Oncology Authors: Pang, M., Liu, X., Madhankumar, A. B., Slagle-Webb, B., Connor, J. Tags: RADIATION THERAPY (CLINICAL AND/OR LABORATORY RESEARCH) Source Type: research

Silencing of DNA repair sensitizes pediatric brain tumor cells to ɣ-irradiation using gold nanoparticles
We present a nanoparticle (NP)-mediated delivery vehicle that effectively carries and protects siRNA in pediatric ependymoma (EP) and medulloblastoma (MB) cells. The delivery vehicle consists of gold NPs coated with a polymeric shell comprising polyethylene glycol (PG), chitosan and polyethyleneimine (Au-CP-PEI). NPs loaded with siRNA knocked down Ape1 expression by over 75% in both MB and EP cells. Further, this reduction in Ape1 expression is associated with an increase in DNA damage after irradiation. The results indicate that NP-associated delivery of siApe1 is a feasible approach to circumventing pediatric brain tumor...
Source: Environmental Toxicology and Pharmacology - April 28, 2017 Category: Environmental Health Source Type: research

Silencing of DNA repair sensitizes pediatric brain tumor cells to γ-irradiation using gold nanoparticles
We present a nanoparticle (NP)-mediated delivery vehicle that effectively carries and protects siRNA in pediatric ependymoma (EP) and medulloblastoma (MB) cells. The delivery vehicle consists of gold NPs coated with a polymeric shell comprising polyethylene glycol (PG), chitosan and polyethyleneimine (Au-CP-PEI). NPs loaded with siRNA knocked down Ape1 expression by over 75% in both MB and EP cells. Further, this reduction in Ape1 expression is associated with an increase in DNA damage after irradiation. The results indicate that NP-associated delivery of siApe1 is a feasible approach to circumventing pediatric brain tumor...
Source: Environmental Toxicology and Pharmacology - May 11, 2017 Category: Environmental Health Source Type: research

Cancers, Vol. 12, Pages 1122: The Role of lncRNAs TAPIR-1 and -2 as Diagnostic Markers and Potential Therapeutic Targets in Prostate Cancer
Muders Sommer Baretton Wirth Horn In search of new biomarkers suitable for the diagnosis and treatment of prostate cancer, genome-wide transcriptome sequencing was carried out with tissue specimens from 40 prostate cancer (PCa) and 8 benign prostate hyperplasia patients. We identified two intergenic long non-coding transcripts, located in close genomic proximity, which are highly expressed in PCa. Microarray studies on a larger cohort comprising 155 patients showed a profound diagnostic potential of these transcripts (AUC~0.94), which we designated as tumor associated prostate cancer increased lncRNA (TAP...
Source: Cancers - April 29, 2020 Category: Cancer & Oncology Authors: Friedrich Wiedemann Reiche Puppel Pfeifer Zipfel Binder K öhl M üller Engeland Aigner F üssel Fr öhner Peitzsch Dubrovska Rade Christ Schreiber Hackerm üller Lehmann Toma Muders Sommer Baretton Wirth Horn Tags: Article Source Type: research

Hypoxia-induced autophagy confers resistance of breast cancer cells to ionizing radiation.
Authors: He WS, Dai XF, Jin M, Liu CW, Rent JH Abstract Hypoxia is a hallmark of solid tumors, which presents a major obstacle to the effectiveness of radiation therapy. However, the function and the importance of molecular response have not been well defined. In the present study, hypoxia-induced autophagy and its effect on the response of breast cancer cells to ionizing radiation were examined. Results showed that hypoxic exposure induced a marked accumulation of autophagosomes accompanied by mRNA induction of the autophagy-related genes Beclin-1, Atg5, Atg7, and Atg12. The elevated autophagic activity was associ...
Source: Oncology Research - December 1, 2014 Category: Cancer & Oncology Tags: Oncol Res Source Type: research

TR-04 * NANOPARTICLE siRNA DELIVERY VEHICLES INHIBIT DNA REPAIR AND SENSITIZE PEDIATRIC BRAIN TUMOR CELLS TO RADIATION THERAPY
Source: Neuro-Oncology - April 23, 2015 Category: Cancer & Oncology Authors: Kievit, F., Stephen, Z., Wang, K., Dayringer, C., Silber, J., Ellenbogen, R., Zhang, M. Tags: TRANSLATIONAL THERAPEUTICS Source Type: research