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https://www.readbyqxmd.com/read/28742387/vitamin-d-loaded-nanostructured-lipid-carrier-nlc-a-new-strategy-for-enhancing-efficacy-of-doxorubicin-in-breast-cancer-treatment
#1
Mehdi Sabzichi, Jamal Mohammadian, Maryam Mohammadi, Farhad Jahanfar, Ali Akbar Movassagh Pour, Hamed Hamishehkar, Alireza Ostad-Rahimi
The dangerous dose-dependent side effects of anticancer agents triggered the finding of new approaches for elevated chemotherapy efficacy. This study investigated the potential application of nanostructured lipid careers (NLCs) in increasing vitamin D3 (VitD) effectiveness in breast cancer cell (MCF-7) in concurrent administration with doxorubicin (Dox). VitD-loaded NLCs were characterized by particle size, zeta potential, Fourier transform infrared spectroscopy, and scanning electron microscope. Cytotoxicity and molecular effects of formulation were evaluated by MTT, DAPI staining, flow cytometry, and real-time quantitative PCR assays...
July 25, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28742385/sequential-therapy-of-breast-cancer-cell-lines-with-vitamin-c-and-quercetin-improves-the-efficacy-of-chemotherapeutic-drugs
#2
Fatemeh Ramezani, Nasser Samadi, Zohreh Mostafavi-Pour
OBJECTIVE: Prevention by antioxidant agents including vitamin C (VC) and quercetin (QU), which are nontoxic, cost effective, and physiologically bioavailable, is a promising approach in breast cancer handling. The aim of this work is to investigate the influence of VC+QU on cytotoxicity profile of doxorubicin (DOX) plus paclitaxel (PAC) in breast cancer cells. METHODS: The effect of each drug on its own or in combination was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
July 25, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28741504/eradicating-quiescent-tumor-cells-by-targeting-mitochondrial-bioenergetics
#3
REVIEW
Xiaonan Zhang, Angelo De Milito, Asuman Demiroglu-Zergeroglu, Joachim Gullbo, Padraig D'Arcy, Stig Linder
The presence of quiescent cell populations in solid tumors represents a major challenge for disease eradication. Such cells are generally present in poorly vascularized tumor areas, show limited sensitivity to traditional chemotherapeutical drugs, and tend to resume proliferation, resulting in tumor reseeding and growth. There is growing recognition of the importance of developing therapies that target these quiescent cell populations to achieve long-lasting remission. Recent studies have shown that the combination of hypoxia and reduced nutrient availability in poorly vascularized areas results in limited tumor metabolic plasticity coupled with an increased sensitivity to perturbations in mitochondrial flux...
November 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28741098/regulation-of-paclitaxel-activity-by-microtubule-associated-proteins-in-cancer-chemotherapy
#4
REVIEW
Xingjuan Shi, Xiaoou Sun
Microtubules, highly dynamic components of the cytoskeleton, participate in diverse cellular activities such as mitosis, cell migration, and intracellular trafficking. Dysregulation of microtubule dynamics contributes to the development of serious diseases, including cancer. The dynamic properties and functions of microtubule network are regulated by microtubule-associated proteins. Paclitaxel, an anti-microtubule agent of the taxane family, has shown a success in clinical treatment of many cancer patients...
July 24, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28740895/using-low-dose-radiation-to-potentiate-the-effect-of-induction-chemotherapy-in-head-and-neck-cancer-results-of-a-prospective-phase-2-trial
#5
Susanne M Arnold, Mahesh Kudrimoti, Emily V Dressler, John F Gleason, Natalie L Silver, William F Regine, Joseph Valentino
PURPOSE: Low-dose fractionated radiation therapy (LDFRT) induces effective cell killing through hyperradiation sensitivity and potentiates effects of chemotherapy. We report our second investigation of LDFRT as a potentiator of the chemotherapeutic effect of induction carboplatin and paclitaxel in locally advanced squamous cell cancer of the head and neck (SCCHN). EXPERIMENTAL DESIGN: Two cycles of induction therapy were given every 21 days: paclitaxel (75 mg/m(2)) on days 1, 8, and 15; carboplatin (area under the curve 6) day 1; and LDFRT 50 cGy fractions (2 each on days 1, 2, 8, and 15)...
October 2016: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28740556/yd277-suppresses-triple-negative-breast-cancer-partially-through-activating-the-endoplasmic-reticulum-stress-pathway
#6
Zekun Chen, Qiuju Wu, Ye Ding, Wenhui Zhou, Rong Liu, Haiying Chen, Jia Zhou, Jing Feng, Ceshi Chen
Triple-negative breast cancer (TNBC) is an aggressive malignancy with poor clinical outcomes. YD277 is a novel small molecule derived from ML264, a KLF5 inhibitor that elicits cytotoxic effects in colon cancer cell lines. Our previous studies suggest that Krüpple-like factor 5 (KLF5) is a promising therapeutic target for TNBC. In this study, we demonstrated that YD277 significantly induced G1 cell cycle arrest and apoptosis in MDA-MB-231 and MDA-MB-468 TNBC cells, independent of KLF5 inhibition. YD277 also reduced the protein expression levels of Cyclin D1, Bcl2 and Bclxl and promoted the expression of p21 and p27...
2017: Theranostics
https://www.readbyqxmd.com/read/28740523/the-effects-of-zoledronic-acid-on-ecg-a-prospective-study-on-patients-with-bone-metastatic-cancer
#7
Derya Demirtas, Cemil Bilir, Abdullah Orhan Demirtas, Huseyin Engin
INTRODUCTION: There are controversial results in the risk of atrial fibrillation as well as arrhythmogenic potential of bis-phosphonates. METHOD: 37 patients and 40 healthy controls were evaluated prospectively with regard to the cardiac side effects related to the use of zoledronic acid (ZA) and its effects on electrocardiography (ECG) parameters. RESULT: As the basal ECG results of the patients diagnosed with cancer compared with the control group, it was determined that QT maximum was significantly lower, QT minimum was significantly higher...
January 2017: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28739752/severe-cardiotoxicity-in-a-patient-with-colorectal-cancer-treated-with-bevacizumab
#8
Jian Chen, Fengcai DU, Baohong Hu, Cheng Chi, Hongjin Chu, Lixin Jiang, Peng Li, Zhaohua Gong
BACKGROUND/AIM: Bevacizumab combined with standard chemotherapeutics has become a choice of treatment for several kinds of cancers. Hypertension, third-degree albuminuria, thrombosis and cardiotoxicity are the reported side-effects of bevacizumab. Among them, cardiotoxicity is a most severe, but rare outcome. We report a case of a 62-year-old female with colorectal carcinoma who was given bevacizumab-containing chemotherapy for more than 20 months and achieved a stable disease during the entire course of treatment...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739724/therapeutic-role-of-mir-140-5p-for-the-treatment-of-non-small-cell-lung-cancer
#9
Valentina Flamini, Wen G Jiang, Yuxin Cui
BACKGROUND/AIM: Lung cancer is the second most common cancer in both men and women, after prostate and breast cancer, respectively. There are two main types of primary lung cancer, non-small cell lung cancer (NSCLC), which accounts for approximately 85-90% of all lung cancer cases, and small cell lung cancer (SCLC), which accounts for the other 10-15% of lung cancers. MiRNAs are small molecules that post-transcriptionally regulate many genes and contribute to many disease aetiologies, including tumours...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739680/bdnf-an-oncogene-or-tumor-suppressor
#10
REVIEW
Daniel P Radin, Parth Patel
Neurotrophins are a family of growth factors that are vital to the proper development of the central nervous system. Their effects on cells are governed by the expression and activation of the tyrosine kinase receptors TrkA, TrkB and TrkC. TrkB has been immensely implicated in mediating neuronal migration, development and differentiation. It has also been shown to protect several neuronal cell types from an array of cytotoxic stressors after activation by its conjugate ligand brain-derived neurotrophic factor (BDNF)...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739502/development-of-biomedical-5-fluorouracil-nanoplatforms-for-colon-cancer-chemotherapy-influence-of-process-and-formulation-parameters
#11
Elena Pretel, José L Arias, Laura Cabeza, Consolación Melguizo, José C Prados, Mireia Mallandrich, Joaquim Suñer, Beatriz Clares
In the present investigation solvent displacement or nanoprecipitation, and double emulsion/solvent evaporation methods were utilized to optimize poly(D,L-lactide-co-glycolide) nanoparticles for the vehiculization of the 5-fluorouracil. Formulation components from both the aqueous and organic phases, as well as, operating conditions were varied. Particles were characterized in terms of particle size and morphology, electrical properties, rheology, drug loading, stability, and drug release. Furthermore, in vitro cytotoxicity on human colon cells and different colon carcinoma cells was evaluated...
July 21, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28738565/zwitterionic-hydrophilic-interaction-liquid-chromatography-tandem-mass-spectrometry-with-hybridspe-precipitation-for-the-determination-of-intact-cisplatin-in-human-plasma
#12
Feifan Xie, Pieter Colin, Jan Van Bocxlaer
Cisplatin is a first-line chemotherapeutic for the treatment of a wide variety of cancers since its discovery in the 1960s. Although various techniques have been reported for the measurement of total platinum in biological matrices, such as inductively coupled plasma-mass spectrometry and derivatization procedures, a specific, sensitive and robust assay for the quantification of intact cisplatin is still lacking. Therefore, we present a rapid, selective, sensitive, and reliable UHPLC-MS/MS based method for the determination of intact cisplatin in human plasma in support of a Phase II clinical trial...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738540/regulatory-players-of-dna-damage-repair-mechanisms-role-in-cancer-chemoresistance
#13
REVIEW
Kunnathur Murugesan Sakthivel, Sreedharan Hariharan
DNA damaging agents are most common in chemotherapeutic molecules that act against cancer. However, cancer cells possess inherent biological features to overcome DNA damages by activating various distinct repair mechanisms and pathways. Importantly, various oncogenes, cancer stem cells (CSCs), hypoxic environment, transcription factors and bystander signaling that are activated in the cancer cells influence DNA repair, thereby effectively repairing the DNA damage. Repaired cancer cells often become more resistance to further therapy and results in disease recurrence...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738532/genipin-attenuates-cisplatin-induced-nephrotoxicity-by-counteracting-oxidative-stress-inflammation-and-apoptosis
#14
Eglal Mahgoub, Shanmugam Muthu Kumaraswamy, Kamal Hassan Kader, Balaji Venkataraman, Shreesh Ojha, Ernest Adeghate, Mohanraj Rajesh
Cisplatin (CP) is a potent and widely used chemotherapeutic agent. However, the clinical benefits of CP are compromised because it elicits nephrotoxicity and ototoxicity. In this study, we investigated the nephroprotective effects of the phytochemical genipin (GP) isolated from the gardenia (Gardenia jasminoides) fruit, using a murine model of CP-induced nephropathy. GP pretreatment attenuated the CP-induced renal tissue injury by diminishing the serum blood urea nitrogen, creatinine, and cystatin C levels, as well as those of kidney injury molecule-1...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28737825/combination-of-rapamycin-and-garlic-derived-s-allylmercaptocysteine-induces-colon-cancer-cell-apoptosis-and-suppresses-tumor-growth-in-xenograft-nude-mice-through-autophagy-p62-nrf2-pathway
#15
Siying Li, Guang Yang, Xiaosong Zhu, Lin Cheng, Yueyue Sun, Zhongxi Zhao
The natural plant-derived product S-allylmercapto-cysteine (SAMC) has been studied in cancer therapy as a single and combination chemotherapeutic agent. The present study was employed to verify the combination use of SAMC and rapamycin that is the mTOR inhibitor with anticancer ability but has limited efficacy due to drug resistance, and to explore the underlying mechanisms. We combined rapamycin and SAMC for colorectal cancer treatment in the HCT‑116 cancer cells and a xenograft murine model. The in vivo study was established by xenografting HCT‑116 cells in BALB/c nude mice...
July 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28736641/bone-marrow-tolerance-during-postoperative-chemotherapy-in-colorectal-carcinomas
#16
Neil B Newman, Rebecca A Moss, Nell Maloney-Patel, Kristen Donohue, Teresa V Brown, Michael J Nissenblatt, Shou-En Lu, Salma K Jabbour
BACKGROUND: This study seeks to quantify and compare bone marrow tolerance during postoperative chemotherapy therapy between rectal cancer vs. colon cancer patients. During rectal cancer treatment, patients receive neoadjuvant chemoradiation (CRT) irradiation which can exacerbate the hematologic toxicity (HT) via incidental irradiation of the pelvic bone marrow (PBM) during myelosuppressive postoperative chemotherapy. In contrast, colon cancer patients receive the same postoperative myelosuppressive chemotherapy but do not routinely receive preoperative chemoradiation therapy...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736333/synthesis-and-characterization-of-a-multifunctional-gold-doxorubicin-nanoparticle-system-for-ph-triggered-intracellular-drug-release
#17
Ganesh V Khutale, Alan Casey
A nanoparticle drug carrier system has been developed to alter the cellular uptake and chemotherapeutic performance of an available chemotherapeutic drug. The system comprises of a multifunctional gold nanoparticle based drug delivery system (Au-PEG-PAMAM-DOX) as a novel platform for intracellular delivery of doxorubicin (DOX). Spherical gold nanoparticles were synthesized by a gold chloride reduction, stabilized with thiolated polyethylene glycol (PEG) and then covalently coupled with a polyamidoamine (PAMAM) G4 dendrimer...
July 20, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28735162/tumor-infiltrating-lymphocytes-in-breast-cancer-according-to-tumor-subtype-current-state-of-the-art
#18
REVIEW
Cinzia Solinas, Luisa Carbognin, Pushpamali De Silva, Carmen Criscitiello, Matteo Lambertini
The recent success of the immune checkpoint blockade in cancer immunotherapy has modified the treatment algorithms in a variety of aggressive neoplastic diseases. Nevertheless, optimal selection of ideal candidates to these drugs remains a challenge. The presence, location and composition of a pre-existing tumor immune infiltrate seem to impact on the benefit from these treatments. The association between the presence of baseline tumor-infiltrating lymphocytes (TIL) and patients' outcomes has been widely investigated in breast cancer, although immunotherapeutic strategies have historically been less successful with respect to other neoplastic diseases such as melanoma and kidney cancer...
July 20, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28735042/improved-selectivity-and-cytotoxic-effects-of-irinotecan-via-liposomal-delivery-a-comparative-study-on-hs68-and-hela-cells
#19
Ana Casadó, Margarita Mora, M Lluïsa Sagristá, Santi Rello-Varona, Pilar Acedo, Juan Carlos Stockert, Magdalena Cañete, Angeles Villanueva
Irinotecan (CPT-11) is an effective chemotherapeutic agent widely used to treat different cancers. Otherwise, the liposomal delivery of anti-tumor agents has been shown to be a promising strategy. The aim of this study has been to analyze the effect of liposomal CPT-11 (CPT-11lip) on two human cell lines (Hs68 and HeLa) to establish the suitability of this CPT-11 nanocarrier. We have demonstrated the highest uptake of CPT-11lip in comparison with that of CPT-11sol, in lactate buffer, and that CPT-11lip was internalized in the cells through an endocytic process whereas CPT-11sol does so by passive diffusion...
July 19, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28734545/engineered-hydrogels-in-cancer-therapy-and-diagnosis
#20
REVIEW
Mohammadmajid Sepantafar, Reihan Maheronnaghsh, Hossein Mohammadi, Fatemeh Radmanesh, Mohammad Mahdi Hasani-Sadrabadi, Marzieh Ebrahimi, Hossein Baharvand
Over the last decade, numerous investigations have attempted to clarify the intricacies of tumor development to propose effective approaches for cancer treatment. Thanks to the unique properties of hydrogels, researchers have made significant progress in tumor model reconstruction, tumor diagnosis, and associated therapies. Notably, hydrogel-based systems can be adjusted to respond to cancer-specific hallmarks and/or external stimuli. These well-known drug reservoirs can be used as smart carriers for multiple cargos, including both naked and nanoparticle-encapsulated chemotherapeutics, genes, and radioisotopes...
July 19, 2017: Trends in Biotechnology
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