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https://www.readbyqxmd.com/read/28821097/thiolated-pectin-doxorubicin-conjugates-synthesis-characterization-and-anticancer-activity-studies
#1
Kamonrak Cheewatanakornkool, Sathit Niratisai, Somkamol Manchun, Crispin R Dass, Pornsak Sriamornsak
In this paper, pectin was cross-linked by a coupling reaction with either thioglycolic acid or cystamine dihydrochloride to form thiolated pectins. The thiolated pectins were then coupled with doxorubicin (DOX) derivative to obtain thiolated pectin-DOX conjugates by two different methods, disulfide bond formation and disulfide bond exchange. The disulfide bond exchange method provided a simple, fast, and efficient approach for synthesis of thiolated pectin-DOX conjugates, compared to the disulfide bond formation...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820908/ribosomopathy-like-properties-of-murine-and-human-cancers
#2
Sucheta Kulkarni, James M Dolezal, Huabo Wang, Laura Jackson, Jie Lu, Brian P Frodey, Atinuke Dosunmu-Ogunbi, Youjun Li, Marc Fromherz, Audry Kang, Lucas Santana-Santos, Panayiotis V Benos, Edward V Prochownik
Ribosomopathies comprise a heterogeneous group of hematologic and developmental disorders, often characterized by bone marrow failure, skeletal and other developmental abnormalities and cancer predisposition. They are associated with mutations and/or haplo-insufficiencies of ribosomal proteins (RPs) and inefficient ribosomal RNA (rRNA) processing. The resulting ribosomal stress induces the canonical p19ARF/Mdm2/p53 tumor suppressor pathway leading to proliferative arrest and/or apoptosis. It has been proposed that this pathway is then inactivated during subsequent neoplastic evolution...
2017: PloS One
https://www.readbyqxmd.com/read/28819703/novel-prostate-cancer-immunotherapy-with-a-dna-encoded-anti-prostate-specific-membrane-antigen-monoclonal-antibody
#3
Kar Muthumani, Liron Marnin, Sagar B Kudchodkar, Alfredo Perales-Puchalt, Hyeree Choi, Sangya Agarwal, Veronica L Scott, Emma L Reuschel, Faraz I Zaidi, Elizabeth K Duperret, Megan C Wise, Kimberly A Kraynyak, Kenneth E Ugen, Niranjan Y Sardesai, J Joseph Kim, David B Weiner
Prostate-specific membrane antigen (PSMA) is expressed at high levels on malignant prostate cells and is likely an important therapeutic target for the treatment of prostate carcinoma. Current immunotherapy approaches to target PSMA include peptide, cell, vector or DNA-based vaccines as well as passive administration of PSMA-specific monoclonal antibodies (mAb). Conventional mAb immunotherapy has numerous logistical and practical limitations, including high production costs and a requirement for frequent dosing due to short mAb serum half-life...
August 17, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28819601/carcinoma-of-unknown-primary-mimicking-multiple-myeloma
#4
Vanamali B Seetharamaiah, B Sunil, M K Padmanabha, N Sparsha
INTRODUCTION: Pathological fractures due to secondaries in the bone are common with carcinoma of lung, breast, prostate, and in multiple myeloma. Multiple pathological fractures after a trivial fall, indicating metastases warrants detailed investigations for the search of primary. Skeletal secondaries should be strongly suspected in addition to obvious diagnosis of multiple myeloma in such cases. CASE REPORT: We report a case of pathological fractures at multiple sites: The vertebral column, proximal shaft of femur, and contralateral fracture neck of femur...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28818992/long-half-life-89-zr-labeled-radiotracers-can-guide-in-suite-percutaneous-molecular-imaging-pet-ct-guided-biopsies-without-reinjection-of-radiotracer
#5
Francois H Cornelis, Jeremy Durack, Neeta Pandit-Taskar, Gary A Ulaner, Jason S Lewis, Michael J Morris, Stephen B Solomon
Rationale: To evaluate the feasibility of in suite Zr89 labeled radiotracer positron emission tomography-computed tomography (PET/CT)-guided biopsies performed without reinjection. Methods: From 2013-2016, 12 patients (7 males, 5 females; mean age 61 years, range 40-75) with suspected metastatic prostate or breast carcinoma on either imaging or biochemical progression underwent 14 percutaneous biopsies after diagnostic PET/CT using (89)Zr labeled radiotracers (mean dose: 180MBq; range: 126-189MBq) targeting prostate specific membrane antigen (PSMA) (n = 7) or human epidermal growth factor receptor 2 (HER2) (n = 5)...
August 17, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28814301/incidence-of-cancer-among-licenced-commercial-pilots-flying-north-atlantic-routes
#6
Eva Maria Gudmundsdottir, Jon Hrafnkelsson, Vilhjalmur Rafnsson
BACKGROUND: To evaluate cancer incidence among licenced commercial pilots in association with cosmic radiation. METHODS: Cohort study where ionizing radiation dose of cosmic radiation was estimated from airline data and software program and cancer incidence was obtained by record linkage with nation-wide cancer registry. All licenced commercial male airline pilots were followed from 1955 to 2015, ever or never employed at airline with international routes. Standardized incidence ratios were calculated and relative risk by Poisson regression, to examine exposure-response relation...
August 16, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28813102/terpene-esters-from-natural-products-synthesis-and-evaluation-of-cytotoxic-activity
#7
Mauricio M Victor, Jorge M David, Maria C K Sakukuma, Letícia V Costa-Lotufo, Andrea F Moura, Ana J Araújo
Natural steroids and triterpenes such as b-sitosterol, stigmasterol, lupeol, ursolic and betulinic acids were transformed into its hexanoic and oleic esters, to evaluate the influence of chemical modification towards the cytotoxic activities against tumor cells. The derivatives were evaluated against five tumor cell lines [OVCAR-8 (ovarian carcinoma); SF-295 (glioblastoma); HCT-116 (colon adenocarcinoma); HL-60 (leukemia); and PC-3 (prostate carcinoma)] and the results showed only betulinic acid hexyl ester exhibits cytotoxic potential activity...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28812471/effectiveness-and-tolerability-of-parenteral-testosterone-undecanoate-a-post-marketing-surveillance-study
#8
Jan Wolf, Dieter Keipert, Heiko Motazedi, Michael Ernst, Joanne Nettleship, Louis Gooren
This observational post-marketing study of parenteral testosterone undecanoate (TU) in a non-selected population aimed to: examine the effectiveness of TU as treatment of hypogonadism; record adverse drug reactions (ADR) quantitatively particularly regarding polycythemia, prostate safety and cardiovascular-related metabolic risk factors; and verify whether recommended injection intervals apply to routine clinical practice. Eight hundred and seventy subjects from 259 outpatient units scheduled to visit the clinic six times were included...
August 16, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/28807337/evaluation-of-cd43-expression-in-non-hematopoietic-malignancies
#9
Bjorn H Batdorf, Steven H Kroft, Paul R Hosking, Alexandra M Harrington, Alexander C Mackinnon, Horatiu Olteanu
OBJECTIVES: CD43 is normally expressed only on the surface of leukocytes, and is considered a sensitive and specific marker for hematologic malignancies. As such, it may have diagnostic utility in confirming hematolymphoid lineage in cases that are negative for CD45. Aberrant CD43 expression has been described in non-hematopoietic tumors, although literature data on this topic is variable and sometimes contradictory. To clarify and expand on existing literature findings, we evaluated CD43 expression by immunohistochemistry (IHC) in a large cohort (307) of non-hematopoietic neoplasms, including poorly differentiated malignancies...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28803033/the-risk-of-tumour-recurrence-in-patients-undergoing-renal-transplantation-for-end-stage-renal-disease-after-previous-treatment-for-a-urological-cancer-a-systematic-review
#10
REVIEW
Romain Boissier, Vital Hevia, Harman Max Bruins, Klemens Budde, Arnaldo Figueiredo, Enrique Lledó-García, Jonathon Olsburgh, Heinz Regele, Claire Fraser Taylor, Rhana Hassan Zakri, Cathy Yuhong Yuan, Alberto Breda
CONTEXT: Renal transplantation is the gold standard renal replacement therapy in end-stage renal disease owing to its superior survival and quality of life compared with dialysis. When the potential recipient has a history of cancer, the waiting period before radiotherapy is usually based on the Cincinnati Registry. OBJECTIVE: To systematically review all available evidence on the risk of cancer recurrence in end-stage renal disease patients with a history of urological cancer...
August 9, 2017: European Urology
https://www.readbyqxmd.com/read/28797006/amiloride-is-effective-in-the-management-of-abiraterone-induced-mineralocorticoid-excess-syndrome-without-interfering-with-its-antineoplastic-activity
#11
Francesca Bedussi, Diego Galli, Martina Fragni, Francesca Valcamonico, Elisa Rossini, Alberto Dalla Volta, Sara Vezzoli, Elisa Roca, Vittorio Ferrari, Barbara Lazzari, Maurizio Memo, Sandra Sigala, Alfredo Berruti
BACKGROUND: The administration of abiraterone acetate (abiraterone) leads to an adrenocorticotropic hormone (ACTH)-driven increase in mineralocorticoid hormones, requiring glucocorticoid supplementation that may stimulate the growth of prostate cancer (PCa). Amiloride is a drug that selectively reduces the aldosterone-sensitive Na+/K+ exchange and could be effective in the management of mineralocorticoid excess syndrome (MCES). METHODS: The efficacy of amiloride + hydrochlorothiazide (HCT) in the clinical management of abiraterone-induced MCES was assessed in 5 consecutive patients with castration-resistant PCa (CRPC)...
August 11, 2017: Pharmacology
https://www.readbyqxmd.com/read/28795320/ezh2-promotes-cell-proliferation-by-regulating-the-expression-of-runx3-in-laryngeal-carcinoma
#12
Rong Lian, Huimin Ma, Zhiyan Wu, Guozheng Zhang, Lei Jiao, Wenjie Miao, Qianqian Jin, Ruixue Li, Ping Chen, Haixu Shi, Wenfa Yu
Enhancer of zeste homolog 2 (EZH2) is a highly conserved histone methyltransferase, which is overexpressed in different types of cancers such as breast and prostate cancer. It is reported that EZH2 can directly down-regulate RUNX3 by increasing histone H3 methylation. However, the role of EZH2 in the development and progression of laryngeal carcinoma has not yet been investigated, and the relationship between EZH2 and RUNX3 in laryngeal carcinoma is rarely reported. The current study aims to determine the role of EZH2 in the progression of laryngeal carcinoma, and investigate the interaction between EZH2 and the tumor suppressor RUNX3...
August 9, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28790299/differentiation-diagnosis-of-hypo-intense-t2-area-in-unilateral-peripheral-zone-of-prostate-using-magnetic-resonance-spectroscopy-mrs-prostate-carcinoma-versus-prostatitis
#13
Tong-Hua Zhang, Chun-Hong Hu, Jian-Xin Chen, Zheng-Dao Xu, Jun-Kang Shen
No abstract text is available yet for this article.
August 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28790115/msh2-loss-in-primary-prostate-cancer
#14
Liana Guedes, Emmanuel S Antonarakis, Michael T Schweizer, Nooshin Mirkheshti, Fawaz Almutairi, Jong Chul Park, Stephanie A Glavaris, Jessica L Hicks, Mario A Eisenberger, Angelo M De Marzo, Jonathan I Epstein, William B Isaacs, James R Eshleman, Colin C Pritchard, Tamara L Lotan
PURPOSE: Inactivation of mismatch repair (MMR) genes may predict sensitivity to immunotherapy in metastatic prostate cancers. We studied primary prostate tumors with MMR defects. EXPERIMENTAL DESIGN: 1133 primary prostatic adenocarcinomas and 43 prostatic small cell carcinomas (NEPC) were screened by MSH2 immunohistochemistry with confirmation by next-generation sequencing (NGS). Microsatellite instability (MSI) was assessed by PCR and NGS (mSINGS). RESULTS: Of primary adenocarcinomas and NEPC, 1...
August 8, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28780673/investigating-the-genetic-relationship-between-alzheimer-s-disease-and-cancer-using-gwas-summary-statistics
#15
Yen-Chen Anne Feng, Kelly Cho, Sara Lindstrom, Peter Kraft, Jean Cormack, Liming Liang, Jane A Driver
Growing evidence from both epidemiology and basic science suggest an inverse association between Alzheimer's disease (AD) and cancer. We examined the genetic relationship between AD and various cancer types using GWAS summary statistics from the IGAP and GAME-ON consortia. Sample size ranged from 9931 to 54,162; SNPs were imputed to the 1000 Genomes European panel. Our results based on cross-trait LD Score regression showed a significant positive genetic correlation between AD and five cancers combined (colon, breast, prostate, ovarian, lung; r g = 0...
August 5, 2017: Human Genetics
https://www.readbyqxmd.com/read/28775319/circulating-tumour-cell-release-after-cement-augmentation-of-vertebral-metastases
#16
Malte Mohme, Sabine Riethdorf, Marc Dreimann, Stefan Werner, Cecile L Maire, Simon A Joosse, Frederic Bludau, Volkmar Mueller, Rui P L Neves, Nikolas H Stoecklein, Katrin Lamszus, Manfred Westphal, Klaus Pantel, Harriet Wikman, Sven O Eicker
Cement augmentation via percutaneous vertebroplasty or kyphoplasty for treatment of spinal metastasis is a well-established treatment option. We assessed whether elevated intrametastatic pressure during cement augmentation results in an increased dissemination of tumour cells into the vascular circulation. We prospectively collected blood from patients with osteolytic spinal column metastases and analysed the prevalence of circulating tumour cells (CTCs) at three time-points: preoperatively, 20 minutes after cement augmentation, and 3-5 days postoperatively...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28767733/lactate-dehydrogenase-and-creatine-kinase-as-poor-prognostic-factors-in-lung-cancer-a-retrospective-observational-study
#17
Lei Liu, Ying He, Ge Ge, Lei Li, Ping Zhou, Yihan Zhu, Huairong Tang, Yan Huang, Weimin Li, Li Zhang
PURPOSE: Circulating molecules play important roles in lung cancer diagnosis. In addition, plasma lactate dehydrogenase (LDH) and creatine kinase (CK) have been shown to be closely related to tumor progression in breast cancer, prostate cancer, and colonel cancer. However, the relationships between LDH and CK levels with metastasis occurrence and the survival status of lung cancer patients remain unclear. EXPERIMENTAL DESIGN: A total of 1142 lung cancer patients were enrolled in this study and were separated into negative or positive groups, according to the plasma levels of CK or LDH...
2017: PloS One
https://www.readbyqxmd.com/read/28767087/novel-methylselenoesters-as-antiproliferative-agents
#18
Nuria Díaz-Argelich, Ignacio Encío, Daniel Plano, Aristi P Fernandes, Juan Antonio Palop, Carmen Sanmartín
Selenium (Se) compounds are potential therapeutic agents in cancer. Importantly, the biological effects of Se compounds are exerted by their metabolites, with methylselenol (CH₃SeH) being one of the key executors. In this study, we developed a new series of methylselenoesters with different scaffolds aiming to modulate the release of CH₃SeH. The fifteen compounds follow Lipinski's Rule of Five and with exception of compounds 1 and 14, present better drug-likeness values than the positive control methylseleninic acid...
August 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28766961/hoxa13-is-associated-with-unfavorable-survival-and-acts-as-a-novel-oncogene-in-prostate-carcinoma
#19
Yan Dong, Ying Cai, Bo Liu, Xiang Jiao, Zhong-Tai Li, Da-Yong Guo, Xin-Wei Li, Yong-Jun Wang, Deng-Ke Yang
AIM: To investigate the clinical relevance and functional role of HOXA13 in prostate cancer Methods: PCR, western blot and immunohistochemistry were performed to determine the expression. Kaplan-Meier and Cox regression survival analyses investigated the clinical relevance. Cell viability, flow cytometry and transwell assays were used to determine the functional roles. RESULTS: HOXA13 expression is sharply increased in carcinoma tissues and is significantly associated with poor prognosis of prostate cancer patients...
July 2017: Future Oncology
https://www.readbyqxmd.com/read/28765515/the-prognostic-implication-of-intraductal-carcinoma-of-the-prostate-in-metastatic-castration-resistant-prostate-cancer-and-its-potential-predictive-value-in-those-treated-with-docetaxel-or-abiraterone-as-first-line-therapy
#20
Jinge Zhao, Pengfei Shen, Guangxi Sun, Ni Chen, Jiandong Liu, Xin Tang, Rui Huang, Diming Cai, Jing Gong, Xingming Zhang, Zhibin Chen, Xiang Li, Qiang Wei, Peng Zhang, Zhenhua Liu, Jiyan Liu, Hao Zeng
Intraductal carcinoma of the prostate (IDC-P) is recognized as a newly pathological entity in 2016 WHO classification. It's role in metastatic castration-resistant prostate cancer (CRPC) remains obscure. We aimed to explore the association of IDC-P with clinical outcome and to further identify its potential predictive role in making first-line treatment decisions for mCRPC. We retrospectively analyzed data of 131 mCRPC patients. IDC-P was diagnosed by re-biopsy at the time of mCRPC. Among total patients, 45 and 41 received abiraterone or docetaxel as first-line therapies, respectively...
July 24, 2017: Oncotarget
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