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Biological therapies

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https://www.readbyqxmd.com/read/29793113/assessment-of-the-risk-of-antiangiogenic-agents-before-and-after-surgery
#1
REVIEW
Christina E Bailey, Alexander A Parikh
Angiogenesis plays a critical role in the growth, progression, and metastasis of numerous solid tumor types, and thus, antiangiogenic agents have been studied for many years as potential therapeutic agents. Many different antiangiogenic agents, including monoclonal antibodies and multi-targeted tyrosine kinase inhibitors (TKIs), have been approved for various oncology indications, and promising clinical activity has been demonstrated. However, some of these agents have also been associated with serious safety concerns...
May 8, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29792734/clinical-updates-on-perianal-fistulas-in-crohn-s-disease
#2
Ori Rackovsky, Robert Hirten, Ryan Ungaro, Jean-Frederic Colombel
Perianal fistulizing disease is an aggressive and debilitating phenotype of Crohn's disease (CD), representing a significant therapeutic challenge. New work has led to advancement in epidemiology and long term outcomes of perianal disease. The range of therapeutic options continues to expand, including new biologic agents, biosimilars, and stem cell therapy. Areas covered: We discuss updates to all aspects of management of perianal disease, with a focus on the last three years of published data. Areas considered include new data on epidemiology and prognostication, medical and surgical therapy, and stem cell therapy...
May 24, 2018: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29792508/effects-of-tgf-%C3%AE-overexpression-via-raav-gene-transfer-on-the-early-repair-processes-in-an-osteochondral-defect-model-in-minipigs
#3
Magali Cucchiarini, Ann-Kathrin Asen, Lars Goebel, Jagadeesh K Venkatesan, Gertrud Schmitt, David Zurakowski, Michael D Menger, Matthias W Laschke, Henning Madry
BACKGROUND: Application of the chondrogenic transforming growth factor beta (TGF-β) is an attractive approach to enhance the intrinsic biological activities in damaged articular cartilage, especially when using direct gene transfer strategies based on the clinically relevant recombinant adeno-associated viral (rAAV) vectors. PURPOSE: To evaluate the ability of an rAAV-TGF-β construct to modulate the early repair processes in sites of focal cartilage injury in minipigs in vivo relative to control (reporter lacZ gene) vector treatment...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29792144/biomedical-applications-of-aromatic-azo-compounds-from-chromophore-to-pharmacophore
#4
Yousaf Ali, Shafida Abd Hamid, Umer Rashid
Azo dyes are widely used in textile, fiber, cosmetic, leather, paint and printing industries. Besides their characteristic coloring function, biological properties of certain azo compounds including antibacterial, antiviral, antifungal and cytotoxic are also reported. Azo compounds can be used as drug carriers, either by acting as a 'cargo' that entrap therapeutic agents or by prodrug approach. The drug is released by internal or external stimuli in the region of interest, as observed in colon-targeted drug delivery...
May 23, 2018: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/29792084/lethal-disseminated-tuberculosis-in-patients-under-biological-treatment-two-clinical-cases-and-a-short-review
#5
Elena Dantes, Doina Ecaterina Tofolean, Ariadna Petronela Fildan, Liviu Craciun, Elena Dumea, Ioan Tiberiu Tofolean, Laura Mazilu
Tumour necrosis factor (TNF)-α inhibitors are highly used in Romania for the treatment of autoimmune disorders, such as rheumatoid arthritis (RA), psoriasis, inflammatory bowel diseases, and ankylosing spondylitis. Biological therapy using TNF-α inhibitors is very effective but is associated with an increased risk of opportunistic infections, including active tuberculosis. Here, two cases are presented of patients with RA and psoriasis under biological therapy who developed very aggressive forms of disseminated tuberculosis, with a rapid progression to death...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29791878/computational-design-of-antibodies
#6
REVIEW
Sharon Fischman, Yanay Ofran
Antibody design aims to create new antibodies with biological activity that can be used in therapy and research. Traditional methods for antibody discovery, such as animal immunization and large-scale library screening, generate antibodies that bind to the target of interest, but do not necessarily have the desired functional effect. Computational methods can be utilized as a means to guide the search for biologically relevant antibodies, focusing on specificity and affinity determinants to target a particular region of the antigen...
May 19, 2018: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/29791832/rationale-opportunities-and-reality-of-biosimilar-medications
#7
Gary H Lyman, Robin Zon, R Donald Harvey, Richard L Schilsky
Biologic therapies for cancer and other disorders contribute to improved outcomes for many patients but also account for a large proportion of health care expenditures. Opportunities for cost containment may emerge as the patents on originator products expire and highly similar agents known as..
May 24, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29791703/biological-intercalary-reconstruction-with-bone-grafts-after-joint-sparing-resection-of-the-lower-limb-is-this-an-effective-and-durable-solution-for-joint-preservation
#8
Francesco Muratori, Francesca Totti, Antonio D'Arienzo, Maurizio Scorianz, Guido Scoccianti, Giovanni Beltrami, Francesco Rosario Campo, Carmine Citarelli, Rodolfo Capanna, Domenico Andrea Campanacci
Due to advances in neoadjuvant therapies and preoperative imaging modalities, joint-sparing resections have become appealing in bone tumor surgery. However, the intercalary reconstruction of metadiaphyseal bone defects of the femur and the tibia after juxta-articular tumor resection remains challenging. Both biological and prosthetic reconstructions have been used for joint-sparing resections, but little is known about the long-term outcome of these procedures. The authors reviewed a consecutive series of 64 patients treated with joint-sparing intercalary resection and reconstruction with bone grafts...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791525/2-3-8-trisubstituted-quinolines-with-antimalarial-activity
#9
Pablo D G Martinez, Susann H Krake, Maitia L Poggi, Simon F Campbell, Paul A Willis, Luiz C Dias
Combination therapy drugs are considered a fundamental way to control malaria as it mimimizes the risk of emergence of resistance to the individual partner drugs. Consequently, this type of therapy constitutes a driving force for the discovery of new drugs with different modes of action, since this will provide options for combining different drugs to achieve the optimum antimalarial treatment. In this context, a 2,3,8-trisubstitued quinoline compound was found in a high throughput screen (HTS) to show an excellent inhibition of P...
May 21, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29791151/recent-advances-and-progress-on-melanin-like-materials-and-their-biomedical-applications
#10
Long Huang, Meiying Liu, Hongye Huang, Yuanqing Wen, Xiaoyong Zhang, Yen Wei
Melanins are well-known biopolymers that are ubiquitous in nature, distributed widely in microorganisms, plants, and animals, and play significant physiological roles. They are mostly biopolymers formed from phenolic compounds by polymerization via quinones. Poly(dopamine) (PDA), a melanin-like material, is similar in structure and properties to eumelanin and has attracted considerable interest for various types of biological applications. This review outlines the recent advances in the structure and synthesis of PDA and discusses applications of PDA in many biological fields, such as biological imaging, photothermal therapy, and drug delivery systems...
May 23, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29791047/cell-surface-engineering-for-advanced-cell-therapy
#11
Jung Kyu Lee, Insung S Choi, Tong In Oh, EunAh Lee
Stem cells opened great opportunity to overcome diseases that conventional therapy had only limited success. Use of scaffolds made from biomaterials not only helps handling of stem cells for delivery or transplantation but also supports enhanced cell survival. Likewise, cell encapsulation can provide stability for living animal cells even in a state of separateness. Although various chemical reactions were tried to encapsulate stolid microbial cells such as yeasts, a culture environment for the growth of animal cells allows only highly biocompatible reactions...
May 23, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29790379/a-review-of-hydrogen-sulfide-synthesis-metabolism-and-measurement-is-modulation-of-hydrogen-sulfide-a-novel-therapeutic-for-cancer
#12
Xu Cao, Lei Ding, Zhi-Zhong Xie, Yong Yang, Matthew Whiteman, Philip K Moore, Jin-Song Bian
Hydrogen sulfide (H2S) has been recognized as the third gaseous transmitter alongside nitric oxide (NO) and carbon monoxide (CO). In the past decade, numerous studies have demonstrated an active role of H2S in the context of cancer biology. The three H2S producing enzymes namely cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3MST) have been found highly expressed in numerous types of cancer. Moreover, inhibition of CBS has shown anti-tumor activity particularly in colon cancer, ovarian cancer and breast cancer, whereas the consequence of CSE or 3MST inhibition remains largely unexplored in cancer cells...
May 23, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29790373/non-clinical-studies-of-progesterone
#13
R Sitruk-Ware
Progesterone is a steroid hormone that is essential for the regulation of reproductive function. Progesterone has been approved for several indications including the treatment of anovulatory menstrual cycles, assisted reproductive technology, contraception during lactation and, when combined with estrogen, for the prevention of endometrial hyperplasia in postmenopausal hormonal therapy. In addition to its role in reproduction, progesterone regulates a number of biologically distinct processes in other tissues, particularly in the nervous system...
May 23, 2018: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/29790189/the-identification-of-a-novel-antibody-for-cd133-using-human-antibody-phage-display
#14
Paige M Glumac, Colleen L Forster, Hong Zhou, Paari Murugan, Shilpa Gupta, Aaron M LeBeau
BACKGROUND: The transmembrane glycoprotein CD133 is believed to be a marker of adult prostate stem cells and cancer stem/initiating cells. Investigating the role of CD133 in the normal biology of the prostate and in cancer is complicated by the lack of a sensitive and accurate antibody for its detection. Here, we describe the characterization of a unique antibody identified using human antibody phage display that can recognize CD133 in both formalin-fixed tissues and cell lines. METHODS: A human single-chain variable fragment (scFv) antibody phage display library possessing a diversity of 8 × 109 was screened against fully glycosylated recombinant CD133...
May 22, 2018: Prostate
https://www.readbyqxmd.com/read/29789718/pdlim7-and-cdh18-regulate-the-turnover-of-mdm2-during-cdk4-6-inhibitor-therapy-induced-senescence
#15
Mary E Klein, Mark A Dickson, Cristina Antonescu, Li-Xuan Qin, Scott J Dooley, Afsar Barlas, Katia Manova, Gary K Schwartz, Aimee M Crago, Samuel Singer, Andrew Koff, William D Tap
CDK4/6 inhibitors are being used to treat a variety of human malignancies. In well-differentiated and dedifferentiated liposarcoma their clinical promise is associated with their ability to downregulate the MDM2 protein. The downregulation of MDM2 following treatment with CDK4/6 inhibitors also induces many cultured tumor cell lines derived from different types of malignancies to progress from quiescence into senescence. Here we used cultured human cell lines and defined a role for PDLIM7 and CDH18, regulating MDM2 protein in CDK4/6 inhibitor-treated cells...
May 23, 2018: Oncogene
https://www.readbyqxmd.com/read/29789637/the-proton-pump-inhibitor-pantoprazole-disrupts-protein-degradation-systems-and-sensitizes-cancer-cells-to-death-under-various-stresses
#16
Yu Cao, Min Chen, Dehua Tang, Hongli Yan, Xiwei Ding, Fan Zhou, Mingming Zhang, Guifang Xu, Weijie Zhang, Shu Zhang, Yuzheng Zhuge, Lei Wang, Xiaoping Zou
Proton pump inhibitors (PPIs) play a role in antitumor activity, with studies showing specialized impacts of PPIs on cancer cell apoptosis, metastasis, and autophagy. In this study, we demonstrated that pantoprazole (PPI) increased autophagosomes formation and affected autophagic flux depending on the pH conditions. PPI specifically elevated SQSTM1 protein levels by increasing SQSTM1 transcription via NFE2L2 activation independent of the specific effect of PPI on autophagic flux. Via decreasing proteasome subunits expression, PPI significantly impaired the function of the proteasome, accompanied by the accumulation of undegraded poly-ubiquitinated proteins...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789601/hmga1-exacerbates-tumor-growth-through-regulating-the-cell-cycle-and-accelerates-migration-invasion-via-targeting-mir-221-222-in-cervical-cancer
#17
Fangfang Fu, Tian Wang, Zhangying Wu, Yourong Feng, Wenwen Wang, Su Zhou, Xiangyi Ma, Shixuan Wang
High-mobility group AT-hook1 (HMGA1, formerly HMG-I/Y), an architectural transcription factor, participates in a number of tumor biological processes. However, its effect on cervical cancer remains largely indistinct. In this study, we found that HMGA1 was generally overexpressed in cervical cancer tissues and was positively correlated with lymph node metastasis and advanced clinical stage. Via exogenously increasing or decreasing the expression of HMGA1, we showed that HMGA1 affected the proliferation, colony formation, migration and invasion of cervical cancer cells in vitro...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789534/the-novel-klf4-plac8-signaling-pathway-regulates-lung-cancer-growth
#18
Yunlu Jia, Xiaogang Ying, Jichun Zhou, Yongxia Chen, Xiao Luo, Shudu Xie, Qin Chuan Wang, Wenxian Hu, Linbo Wang
Accumulating evidence suggests that placenta-specific 8 (PLAC8) plays an important role in normal cellular process and human diseases, including multiple types of human tumors, and its role is highly relied upon in cellular and physiologic contexts. However, there are no reports on its expression profile and biological roles during lung cancer development. In the current study, both the clinical implications and biological effects of PLAC8 in lung cancer (LC) progression were investigated, and we identified and described the novel Krüppel-like factor 4 (KLF4)/PLAC8 regulatory pathway in cancer progression...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29788889/targeting-key-transporters-in-tumor-glycolysis-as-a-novel-anticancer-strategy
#19
Yunli Shi, Shengnan Liu, Shabir Ahmad, Qingzhi Gao
Increased glycolysis has been one of the metabolic characteristics known as the Warburg effect. The functional and therapeutic importance of the Warburg effect in targeted therapy is scientifically recognized and the glucose metabolic pathway has become a desirable target of anticancer strategies. Glucose transporters (GLUTs) play an important role in cancer glycolysis to sustain cancer cell proliferation, metastasis and survival. Utilizing the knowledge of differential expression and biological functions of GLUTs offers us the possibility of designing and delivering chemotherapeutics toward targeted tumor tissues for improved cancer selectivity...
May 22, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29788868/contribution-of-spinal-cord-oligodendrocytes-to-neuroinflammatory-diseases-and-pain
#20
Sergio M Borghi, Victor Fattori, Miriam S N Hohmann, Waldiceu A Verri
BACKGROUND: Neuroinflammatory diseases that affect spinal cord or associated spinal nerves represent challenging conditions for management in current medicine because of their complex pathology, poor prognosis, and high morbidity, which strikingly reduces the quality of life of patients. In this sense, a better understanding of the cellular and molecular mechanisms of spinal cord neuroinflammation might contribute to the development of novel therapies. Oligodendrocytes have unique and vital biological properties in central nervous system (CNS) homeostasis and physiology...
May 21, 2018: Current Medicinal Chemistry
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