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https://www.readbyqxmd.com/read/29031817/bcrp-abcg2-and-high-alert-medications-biochemical-pharmacokinetic-pharmacogenetic-and-clinical-implications
#1
REVIEW
Daiki Hira, Tomohiro Terada
The human breast cancer resistance protein (BCRP/ABCG2) is an ATP-binding cassette efflux transporter that uses ATP hydrolysis to expel xenobiotics from cells, including anti-cancer medications. It is expressed in the gastrointestinal tract, liver, kidney, and brain endothelium. Thus, ABCG2 functions as a tissue barrier to drug transport that strongly influences the pharmacokinetics of substrate medications. Genetic polymorphisms of ABCG2 are closely related to inter-individual variations in therapeutic performance...
October 12, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29026346/treatment-with-direct-oral-anticoagulants-in-patients-with-upper-extremity-deep-vein-thrombosis
#2
Francisco Sánchez Montiel, Raein Ghazvinian, Anders Gottsäter, Johan Elf
BACKGROUND: Upper extremity deep vein thrombosis (UEDVT) constitutes around 10% of all DVT, and can cause both pulmonary embolism (PE) and postthrombotic syndrome (PTS) in the arm. The incidence of secondary UEDVT is increasing due to widespread use of central venous catheters in patients with cancer and other chronic diseases. The safety and efficacy of using new direct acting oral anti coagulants (DOAC) in the treatment of UEDVT has not been systematically evaluated. Our aims were to evaulate efficacy, safety, and risk of recurrence of venous thromboembolism (VTE) during DOAC treatment in UEDVT patients...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/29025771/endothelial-activation-and-blood-brain-barrier-disruption-in-neurotoxicity-after-adoptive-immunotherapy-with-cd19-car-t-cells
#3
Juliane Gust, Kevin A Hay, Laïla-Aïcha Hanafi, Daniel Li, David Myerson, Luis F Gonzalez-Cuyar, Cecilia Yeung, W Conrad Liles, Mark Wurfel, Jose A Lopez, Junmei Chen, Dominic Chung, Susanna Harju-Baker, Tahsin Özpolat, Kathleen R Fink, Stanley R Riddell, David G Maloney, Cameron J Turtle
Lymphodepletion chemotherapy followed by infusion of CD19-targeted chimeric antigen receptor-modified T (CAR-T) cells can be complicated by neurologic adverse events (AE) in patients with refractory B-cell malignancies. In 133 adults treated with CD19 CAR-T cells, we found that acute lymphoblastic leukemia, high CD19(+) cells in bone marrow, high CAR-T cell dose, cytokine release syndrome, and preexisting neurologic comorbidities were associated with increased risk of neurologic AEs. Patients with severe neurotoxicity demonstrated evidence of endothelial activation, including disseminated intravascular coagulation, capillary leak, and increased blood-brain barrier (BBB) permeability...
October 12, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/29023465/in-vitro-effects-of-apixaban-on-5-different-cancer-cell-lines
#4
Luigina Guasti, Alessandro Squizzato, Paola Moretto, Davide Vigetti, Walter Ageno, Francesco Dentali, Andrea M Maresca, Leonardo Campiotti, Anna M Grandi, Alberto Passi
BACKGROUND: Cancer is associated with hypercoagulability. However, several data suggest that anticoagulant drugs may have an effect on tumor development and progression mediated by both coagulation dependent processes and non-coagulation dependent processes. Therefore, we investigated the in vitro effects of Apixaban on cell proliferation, mortality, cell migration, gene expression and matrix metalloproteinase in 5 different cancer cell lines. METHODS: The following cancer cell lines, and 2 normal fibroblast cultures (lung and dermal fibroblasts), were studied: OVCAR3 (ovarian cancer), MDA MB 231 (breast cancer), CaCO-2 (colon cancer), LNCaP (prostate cancer) and U937 (histiocytic lymphoma)...
2017: PloS One
https://www.readbyqxmd.com/read/29023416/neuro-coagulopathy-blood-coagulation-factors-in-central-nervous-system-diseases
#5
REVIEW
Ciro De Luca, Assunta Virtuoso, Nicola Maggio, Michele Papa
Blood coagulation factors and other proteins, with modulatory effects or modulated by the coagulation cascade have been reported to affect the pathophysiology of the central nervous system (CNS). The protease-activated receptors (PARs) pathway can be considered the central hub of this regulatory network, mainly through thrombin or activated protein C (aPC). These proteins, in fact, showed peculiar properties, being able to interfere with synaptic homeostasis other than coagulation itself. These specific functions modulate neuronal networks, acting both on resident (neurons, astrocytes, and microglia) as well as circulating immune system cells and the extracellular matrix...
October 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29017954/low-level-led-photodynamic-therapy-using-curcumin-loaded-tetraether-liposomes
#6
Lili Duse, Shashank Reddy Pinnapireddy, Boris Strehlow, Jarmila Jedelská, Udo Bakowsky
Oncological use of photodynamic therapy is an evolving field in cancer therapeutics. Photosensitisers are prone to accumulation inside healthy tissues causing undesirable effects. To avoid this, we have developed tetraether lipid liposomal formulations containing curcumin which is a naturally occurring anti-cancer substance and deemed to be safe towards healthy cells. Upon excitation with light at a specific wavelength, curcumin produces reactive oxygen species (ROS) in presence of oxygen, thereby exhibiting a cytotoxic effect towards the surrounding tissues, giving a total control on the onset of therapy...
October 7, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28991883/inflammation-related-morbidity-and-mortality-among-hiv-positive-adults-how-extensive-is-it
#7
Brian B Hart, Anna D Nordell, Jason F Okulicz, Adrian Palfreeman, Andrzej Horban, Eynat Kedem, Jacqueline Neuhaus, David R Jacobs, Daniel A Duprez, James D Neaton
OBJECTIVE: To determine the rate of grade 4, potentially life-threatening, events not attributable to AIDS, cardiovascular disease (CVD) or non-AIDS cancer among participants on antiretroviral therapy (ART), and to describe associations of these events with interleukin-6 and D-dimer. DESIGN: Cohort study. METHODS: HIV-infected participants on ART (N=3,568) with an HIV RNA level ≤ 500 copies/mL were followed for grade 4, AIDS, CVD, non-AIDS cancer and all-cause mortality events...
October 4, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28982515/robotic-total-pelvic-exenteration-with-intracorporeal-sigmoid-conduit-and-colostomy-step-by-step-technique
#8
Matthew J Maurice, Daniel Ramirez, Emre Gorgun, Georges-Pascal Haber
OBJECTIVE: To describe our technique for robotic total pelvic exenteration with intracorporeal sigmoid conduit and colostomy using the da Vinci Si robot. METHODS: Three 8-mm robotic ports and two 12-mm laparoscopic ports are placed in a "W" configuration, approximately 2-3 cm more cephalad than for radical prostatectomy (Fig. 1). The robot is docked between the legs with the patient in steep Trendelenburg. The ureters are dissected out from the iliac vessels to the rectovesical pouch, where they are clipped and transected...
July 2017: Urology
https://www.readbyqxmd.com/read/28974047/heparin-mimetics-their-therapeutic-potential
#9
REVIEW
Shifaza Mohamed, Deirdre R Coombe
Heparin mimetics are synthetic and semi-synthetic compounds that are highly sulfated, structurally distinct analogues of glycosaminoglycans. These mimetics are often rationally designed to increase potency and binding selectivity towards specific proteins involved in disease manifestations. Some of the major therapeutic arenas towards which heparin mimetics are targeted include: coagulation and thrombosis, cancers, and inflammatory diseases. Although Fondaparinux, a rationally designed heparin mimetic, is now approved for prophylaxis and treatment of venous thromboembolism, the search for novel anticoagulant heparin mimetics with increased affinity and fewer side effects remains a subject of research...
October 2, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28970170/microbial-serine-protease-inhibitors-and-their-therapeutic-applications
#10
REVIEW
B S Harish, Kiran Babu Uppuluri
Serine protease inhibitors, inhibit serine proteases either partially or completely after forming complexes with their respective proteases. Protease actions are significant for many physiological pathways found in living forms and any anomalies may lead to numerous physiological complications. Each cell or organism has its own mechanism for controlling these protease actions. It is often regulated by the action of inhibitors or activators. Among the proteases, serine proteases are the most common that are involved in many life and death processes...
September 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28968987/chemotherapy-administration-to-breast-cancer-patients-affects-extracellular-vesicles-thrombogenicity-and-function
#11
Anat Aharon, Anni Sabbah, Shahar Ben-Shaul, Hila Berkovich, David Loven, Benjamin Brenner, Gil Bar-Sela
Breast cancer (BC) is the most prevalent type of malignancy in women. Extracellular vesicles (EVs) are subcellular membrane blebs that include exosomes and microparticles. STUDY AIMS: To elucidate the effects of chemotherapy administration on BC patients' EVs characteristics and their effects on endothelial cells (EC) functions. METHODS: EVs were isolated from the blood samples of 54 BC patients treated by chemotherapy (25 neo-adjuvant, 29 adjuvant) and from 20 healthy women (control group)...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28965258/low-voltage-coagulation-polyglycolic-acid-sheets-and-fibrin-glue-to-control-air-leaks-in-lung-surgery
#12
Norikazu Kawai, Takeshi Kawaguchi, Shuko Suzuki, Motoaki Yasukawa, Takashi Tojo, Shigeki Taniguchi
OBJECTIVE: We evaluated the efficacy of low-voltage coagulation (LVC) with polyglycolic acid (PGA) sheets (Neoveil, GUNZE Ltd., Japan) and fibrin glue to control intraoperative alveolar air leaks after lung surgery. METHODS: We included 176 patients with non-small cell lung cancer who underwent thoracoscopic lobectomies. When alveolar air leak was confirmed after lung resection, we applied LVC system to the pleural defect followed by layers of PGA sheets and fibrin glue (n = 40)...
September 30, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28962123/whole-genome-gene-expression-changes-and-hematological-effects-of-rikkunshito-in-patients-with-advanced-non-small-cell-lung-cancer-receiving-first-line-chemotherapy
#13
Yung-Che Chen, An-Shen Lin, Yu-Chiang Hung, Kuang-Den Chen, Ching-Yuan Wu, Chien-Hao Lie, Chang-Chun Hsiao, Chung-Jen Chen, Shih-Feng Liu, Wen-Feng Fang, Jen-Chieh Chang, Ting-Ya Wang, Yi-Hsi Wang, Yu-Hsiu Chung, Tung-Ying Chao, Sum-Yee Leung, Mao-Chang Su, Meng-Chih Lin
It has been demonstrated that the traditional Chinese medicine rikkunshito, ameliorates anorexia in several types of human cancer and attenuates lung injury by inhibiting neutrophil infiltration. The current study investigated the clinical and hematological effects of rikkunshito and its underlying mechanisms of action in the treatment of advanced non-small cell lung cancer (NSCLC). The Illumina microarray BeadChip was used to analyze the whole-genome expression profiles of peripheral blood mononuclear cells in 17 patients with advanced NSCLC...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28960809/acquired-haemophilia-in-cancer-a-systematic-and-critical-literature-review
#14
REVIEW
M Napolitano, S Siragusa, S Mancuso, C M Kessler
AIM: There is a paucity of data on the clinical presentation and management of cancer patients with acquired haemophilia (AH), we here report a systematic literature review on acquired haemophilia in the context of cancer. METHODS: Treatment outcomes of AH were defined as complete response (CR), partial response (PR) or no response (NR), based on inhibitor eradication, coagulation factor VIII levels and bleeding control. Reported deaths were either related to cancer or bleeding...
September 27, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28952794/management-of-a-tibial-plafond-lung-cancer-metastasis-using-an-intramedullary-hindfoot-fusion-nail
#15
Andrew R Hsu, Adam D Lindsay
Metastatic disease to the tibial plafond is rare with few reports in the literature. No consensus exists regarding surgical reconstruction of large structural defects of the ankle due to these lesions, as each treatment must be tailored to the individual patient's goals and prognosis. Cancer metastases pose a unique challenge to limb salvage as there is often bone loss and poor soft tissue quality combined with the need for postoperative adjuvant therapy. The goal of surgery is to obtain early weightbearing, pain relief, and a durable reconstruction that will outlive the patient...
September 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28950217/breast-cancer-extracellular-vesicles-induce-platelet-activation-and-aggregation-by-tissue-factor-independent-and-dependent-mechanisms
#16
Fausto G Gomes, Vanessa Sandim, Vitor H Almeida, Araci M R Rondon, Barbara B Succar, Eugenio D Hottz, Ana Carolina Leal, Brunno Renato F Verçoza, Juliany Cola F Rodrigues, Patrícia T Bozza, Russolina B Zingali, Robson Q Monteiro
INTRODUCTION: Cancer-associated thrombosis is one of the major causes of worse prognosis among tumor-bearing patients. Extracellular vesicles derived from cancer cells, which can be divided mainly into microvesicles and exosomes, can participate in several tumor progression phenomena. Tumor-derived microvesicles positive for tissue factor (TF) have been associated with thrombotic risk in certain cancer types. Cancer cell-derived exosomes, however, have not. In this study we evaluated the capacity of extracellular vesicles (EVs, containing both microvesicles and exosomes) derived from breast-cancer cell lines in promoting platelet activation, aggregation and plasma coagulation, in experiments that access both TF-dependent and -independent activities...
September 21, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28943552/aortic-aneurysm-associated-disseminated-intravascular-coagulation-dic-that-responded-well-to-a-switch-from-warfarin-to-rivaroxaban
#17
Yasuko Kadohira, Shinya Yamada, Erika Matsuura, Tomoe Hayashi, Eriko Morishita, Shinji Nakao, Hidesaku Asakura
We describe a case in which uncontrolled chronic disseminated intravascular coagulation (DIC) caused by an aortic aneurysm that was exacerbated by chemotherapy for lung cancer, showed dramatic improvement when warfarin, which was being administered for atrial fibrillation, was replaced by rivaroxaban, a direct oral anticoagulant (DOAC). The present case is interesting because a DOAC was effective in treating DIC due to an aortic aneurysm, whereas warfarin, another oral anticoagulant, was ineffective. In controlling DIC, it is important to inhibit activated coagulation factors such as thrombin and activated factor X, rather than the coagulation factors, which act as substrates...
September 25, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28938620/pathological-expression-of-tissue-factor-confers-promising-antitumor-response-to-a-novel-therapeutic-antibody-sc1-in-triple-negative-breast-cancer-and-pancreatic-adenocarcinoma
#18
Xuesai Zhang, Qingrou Li, Hui Zhao, Lanping Ma, Tao Meng, Jianchang Qian, Rui Jin, Jingkang Shen, Ker Yu
The pathological presence of tissue factor (TF) in cancer cells promotes tumor-initiated thrombosis and cancer metastasis. We found that TF is aberrantly present in large percentage of aggressive triple negative breast cancer (TNBC) and pancreatic adenocarcinoma (PaC), two most lethal forms of malignancy that urgently need effective treatment. TF expression in TNBC clustered with higher levels of vimentin, basal-type keratins KRT5/14 and caveolin-1 but lower levels of luminal-type biomarkers. We developed a novel and specific anti-TF therapeutic antibody SC1, which displayed an exceedingly high potency against TF extracellular domain (EC50: 0...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28934828/-treatment-strategies-after-non-curative-endoscopic-resection-of-early-gastric-cancer
#19
REVIEW
Shin Hee Kim, Su Jin Hong
The cases of non-curative endoscopic resection (NCR) of early gastric cancer have increased due to the widespread use of endoscopic submucosal dissection (ESD). NCR is associated with augmenting chances of local recurrence and lymph node metastasis (LNM). Therefore, some additional treatment strategies after NCR are needed. Treatment strategies for NCR should be determined by considering the risk of residual tumor or local recurrence and LNM. Additional surgical treatment such as gastrectomy and lymph node dissection are recommended in patients who have high-risk of LNM...
September 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28934826/-endoscopic-treatment-of-gastric-adenoma
#20
REVIEW
Cheal Wung Huh, Byung Wook Kim
Gastric adenoma (dysplasia) is a precancerous lesion. Therefore, managements of gastric adenomas are important for preventing the development of gastric cancers and for detecting gastric cancers at earlier stages. The Vienna classification divides gastric adenomas into two categories: high-grade dysplasia and low-grade dysplasia. Generally, endoscopic resection is performed for adenoma with high-grade dysplasia due to the coexistence of carcinoma and the potential of progression to carcinomas. However, the treatments of adenoma with low-grade dysplasia remain controversial...
September 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
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