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https://www.readbyqxmd.com/read/29668141/-prevalence-and-risk-factors-associated-to-tuberculosis-and-non-tuberculous-mycobacterial-infections-in-hiv-positive-patients-in-bogot%C3%A3
#1
Magda Beltrán-León, Francy Pérez-Llanos, Liliana Sánchez, Carlos Parra-López, Myriam Navarrete, Ricardo Sánchez, Carlos Awad, Ana María Granada, Edgardo Quintero, Óscar Briceño, Óscar Cruz, Martha Isabel Murcia
INTRODUCTION: Tuberculosis is one of the most widely distributed infectious diseases worldwide. It is the most common cause of mortality among AIDS patients. In Colombia, 12,918 tuberculosis cases were notified, and 926 deaths were reported in 2015. OBJECTIVE: To determine the prevalence and risk factors associated to mycobacterial infections in HIVpositive patients in two public hospitals from Bogotá. MATERIALS AND METHODS: A prospective and descriptive study was carried out by an active search for tuberculosis cases and non-tuberculous mycobacterial infections in HIV-positive patients...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29668065/insight-on-the-regulation-of-chemokine-activities
#2
REVIEW
Valentina Cecchinato, Mariagrazia Uguccioni
The activity of chemokines is regulated by several mechanisms that control the final cellular response. The present review discusses the complexity of the regulation of the chemokine system, and the novel findings describing how in persistent infections, the expression of chemokine receptors on the surface of T cells does not correlate with their homing potential. Thanks to the latest advances in our comprehension of the chemokine system, novel approaches targeting chemokines, chemokine receptors, or protein of their signaling pathway should be considered in order to achieve a personalized therapy...
April 18, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29668038/photodynamic-therapy-induces-antifibrotic-alterations-in-primary-human-vocal-fold-fibroblasts
#3
Chi Zhang, Jiajia Wang, Adriana Chou, Ting Gong, Erin E Devine, Jack J Jiang
OBJECTIVES/HYPOTHESIS: Photodynamic therapy (PDT) is a promising treatment modality for laryngeal dysplasia, early-stage carcinoma, and papilloma, and was reported to have the ability to preserve laryngeal function and voice quality without clinical fibrotic response. We aimed to investigate the mechanism behind the antifibrotic effects of PDT on primary human vocal fold fibroblasts (VFFs) in vitro. STUDY DESIGN: In vitro analysis from one human donor. METHODS: Cell viability of VFFs in response to varying doses of PDT was investigated by the Cell Counting Kit-8 method...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29667905/essential-role-of-mohawk-for-tenogenic-tissue-homeostasis-including-spinal-disc-and-periodontal-ligament
#4
Ryo Nakamichi, Kensuke Kataoka, Hiroshi Asahara
Tendons and ligaments play essential roles in connecting muscle and bone and stabilizing the connections between bones. The damage to tendons and ligaments caused by aging, injury, and arthritis induces the dysfunction of the musculoskeletal system and reduces the quality of life. Current therapy for damaged tendons and ligaments depends on self-repair; however, it is difficult to reconstruct normal tissue. Regeneration therapy for tendons and ligaments has not been achieved, partly because the mechanism, cell biology, and pathophysiology of tendon and ligament development remain unclear...
April 18, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29667769/targeting-the-phosphatidylinositol-3-kinase-akt-mechanistic-target-of-rapamycin-signaling-pathway-in-b-lineage-acute-lymphoblastic-leukemia-an-update
#5
REVIEW
Carolina Simioni, Alberto M Martelli, Giorgio Zauli, Marco Vitale, James A McCubrey, Silvano Capitani, Luca M Neri
Despite considerable progress in treatment protocols, B-lineage acute lymphoblastic leukemia (B-ALL) displays a poor prognosis in about 15-20% of pediatric cases and about 60% of adult patients. In addition, life-long irreversible late effects from chemo- and radiation therapy, including secondary malignancies, are a growing problem for leukemia survivors. Targeted therapy holds promising perspectives for cancer treatment as it may be more effective and have fewer side effects than conventional therapies. The phosphatidylinositol 3-phosphate kinase (PI3K)/Akt/mechanistic target of rapamycin (mTOR) signaling pathway is a key regulatory cascade which controls proliferation, survival and drug-resistance of cancer cells, and it is frequently upregulated in the different subtypes of B-ALL, where it plays important roles in the pathophysiology, maintenance and progression of the disease...
April 18, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29667744/intraurethral-erbium-yag-laser-for-the-management-of-urinary-symptoms-of-genitourinary-syndrome-of-menopause-a-pilot-study
#6
Adrian Gaspar, Sandra Maestri, Joaquin Silva, Hugo Brandi, Daniel Luque, Neža Koron, Zdenko Vižintin
OBJECTIVES: Genitourinary syndrome of menopause (GSM) combines the conditions of vulvovaginal atrophy (VVA) and urinary tract dysfunction, which is a result of urethral atrophy. There are several treatment methods available for the management of vulvovaginal symptoms of GSM, whereas urinary tract dysfunction often remains overlooked and undertreated. The objective of this pilot study was to assess the safety and efficacy of intraurethral Er:YAG laser treatment of urinary symptoms of GSM...
April 18, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29667717/current-approaches-for-the-treatment-of-male-infertility-with-stem-cell-therapy
#7
REVIEW
Zahra Pourmoghadam, Leili Aghebati-Maleki, Morteza Motalebnezhad, Bahman Yousefi, Mehdi Yousefi
Infertility is the inability to conceive after having regular unprotected sexual intercourse for more than 12 months and it can be caused by reproductive problems of men, women, or both, but sometimes the cause of infertility is unknown. At least 30 million men around the world suffer from infertility, most of whom are in Africa and Eastern Europe. Since infertility problems can have devastating emotional effects on couples as well as negative effects on the society, treatment of infertility is very important, as a result of which many studies have been carried out in this field and many treatments have been proposed...
April 18, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29667617/combination-of-stromal-vascular-fraction-and-ad-comp-ang1-gene-therapy-improves-long-term-therapeutic-efficacy-for-diabetes-induced-erectile-dysfunction
#8
Guo-Nan Yin, Lin Wang, Xiang-Nan Lin, Lei Shi, Zhen-Lin Gao, Feng-Chan Han, Ping Li, Yin-Chuan Jin, Jun-Kyu Suh, Ji-Kan Ryu, Xiong Wang, Hai-Rong Jin
Men with diabetic erectile dysfunction (ED) respond poorly to the currently available oral phosphodiesterase-5 inhibitors. Therefore, functional therapies for diabetic ED are needed. Stromal vascular fraction (SVF) and the adenovirus-mediated cartilage oligomeric matrix angiopoietin-1 (Ad-COMP-Ang1) gene are known to play critical roles in penile erection. We previously reported that SVF and Ad-COMP-Ang1 have only a short-term effect in restoring erectile function. Further improvements to ED therapy are needed for long-lasting effects...
April 17, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29667553/car-t-cell-therapy-a-new-era-in-cancer-immunotherapy
#9
Miliotou N Androulla, Papadopoulou C Lefkothea
BACKGROUND: Cancer is one of the leading causes of death worldwide. Over the years, a number of conventional cytotoxic approaches for neoplastic diseases has been developed. However, due to their limited effectiveness in accordance with the heterogeneity of cancer cells, there is a constant search for therapeutic approaches with improved outcome, such as immunotherapy that utilizes and enhances the normal capacity of the patient's immune system. METHODS: Chimeric Antigen Receptor (CAR) T-cell therapy involves genetic modification of patient's autologous T-cells to express a CAR specific for a tumor antigen, following by ex vivo cell expansion and re-infusion back to the patient...
April 17, 2018: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29667529/emerging-therapeutic-targets-for-neurofibromatosis-type-1
#10
James A Walker, Meena Upadhyaya
Neurofibromatosis type 1 (NF1) is an autosomal dominantly inherited tumor predisposition syndrome with an incidence of one in 3000-4000 individuals with no currently effective therapies. The NF1 gene on chromosome 17 encodes neurofibromin, which functions as a negative regulator of RAS. NF1 is a chronic multi-system disorder affecting many different tissues. Due to cell-specific complexities of RAS signaling, therapeutic approaches for NF1 will likely have to focus on a particular tissue and manifestation of the disease...
April 18, 2018: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/29667478/retro-inverso-follicle-stimulating-hormone-peptide-mediated-polyethylenimine-complexes-for-targeted-ovarian-cancer-gene-therapy
#11
Mengyu Zhang, Mingxing Zhang, Jing Wang, Qingqing Cai, Ran Zhao, Yi Yu, Haiyan Tai, Xiaoyan Zhang, Congjian Xu
BACKGROUND: The development of nanoparticle drug delivery systems with targeted ligands has the potential to increase treatment efficiency in ovarian cancer. METHODS: We developed a 21-amino acid peptide, YTRDLVYGDPARPGIQGTGTF (L-FP21) conjugated to polyethylenimine (PEI) and methoxy polyethylene glycol (mPEG) to prepare a nanoparticle drug vehicle to target follicle-stimulating hormone receptor (FSHR) in ovarian cancer. At the same time, we optimized the ligand of the nanoparticle vehicle using D-peptides, which consist of D-amino acids (D-FP21)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29667445/the-mechanism-of-lauric-acid-modified-protein-nanocapsules-escape-from-intercellular-trafficking-vesicles-and-its-implication-for-drug-delivery
#12
Lijuan Jiang, Xin Liang, Gan Liu, Yun Zhou, Xinyu Ye, Xiuli Chen, Qianwei Miao, Li Gao, Xudong Zhang, Lin Mei
Protein nanocapsules have exhibited promising potential applications in the field of protein drug delivery. A major issue with various promising nano-sized biotherapeutics including protein nanocapsules is that owing to their particle size they are subject to cellular uptake via endocytosis, and become entrapped and then degraded within endolysosomes, which can significantly impair their therapeutic efficacy. In addition, many nano-sized biotherapeutics could be also sequestered by autophagosomes and degraded through the autolysosomal pathway...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29667444/akt2-sirna-delivery-with-amphiphilic-based-polymeric-micelles-show-efficacy-against-cancer-stem-cells
#13
Diana Rafael, Petra Gener, Fernanda Andrade, Joaquin Seras-Franzoso, Sara Montero, Yolanda Fernández, Manuel Hidalgo, Diego Arango, Joan Sayós, Helena F Florindo, Ibane Abasolo, Simó Schwartz, Mafalda Videira
Development of RNA interference-based therapies with appropriate therapeutic window remains a challenge for advanced cancers. Because cancer stem cells (CSC) are responsible of sustaining the metastatic spread of the disease to distal organs and the progressive gain of resistance of advanced cancers, new anticancer therapies should be validated specifically for this subpopulation of cells. A new amphihilic-based gene delivery system that combines Pluronic® F127 micelles with polyplexes spontaneously formed by electrostatic interaction between anionic siRNA and cationic polyethylenimine (PEI) 10K, was designed (PM)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29667346/in-situ-vaccination-harvesting-low-hanging-fruit-on-the-cancer-immunotherapy-tree
#14
REVIEW
Mee Rie Sheen, Steven Fiering
After 100 years of debate, it is clear that cancer is recognized by the immune system and this has generated immense interest in cancer immunotherapy. The systemic nature of the immune system gives immunotherapy the ability to treat metastatic disease, which currently requires chemotherapy that frequently fails. Like chemotherapy, most immunotherapy is systemically applied in an effort to generate systemic antitumor immune response. However, local administration of immunostimulatory reagents into a recognized tumor by in situ vaccination (ISV) can also generate systemic antitumor immunity to fight metastatic disease...
April 18, 2018: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/29667344/concise-review-aggressive-colorectal-cancer-role-of-epithelial-cell-adhesion-molecule-in-cancer-stem-cells-and-epithelial-to-mesenchymal-transition
#15
REVIEW
Maximilian Boesch, Gilbert Spizzo, Andreas Seeber
Colorectal cancer (CRC) is one of the most common malignancies worldwide. In spite of various attempts to ameliorate outcome by escalating treatment, significant improvement is lacking particularly in the adjuvant setting. It has been proposed that cancer stem cells (CSCs) and the epithelial-to-mesenchymal transition (EMT) are at least partially responsible for therapy resistance in CRC. The epithelial cell adhesion molecule (EpCAM) was one of the first CSC antigens to be described. Furthermore, an EpCAM-specific antibody (edrecolomab) has the merit of having launched the era of monoclonal antibody treatment in oncology in the 1990s...
April 17, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29667293/enhanced-in-vitro-biocompatibility-and-water-dispersibility-of-magnetite-and-cobalt-ferrite-nanoparticles-employed-as-ros-formation-enhancer-in-radiation-cancer-therapy
#16
Stefanie Klein, Melek Kızaloğlu, Luis Portilla, Hyoungwon Park, Tobias Rejek, Julian Hümmer, Karsten Meyer, Rainer Hock, Luitpold V R Distel, Marcus Halik, Carola Kryschi
Efficient magnetic reactive oxygen species (ROS) formation enhancing agents after X-ray treatment are realized by functionalizing superparamagnetic magnetite (Fe3 O4 ) and Co-ferrite (CoFe2 O4 ) nanoparticles with self-assembled monolayers (SAMs). The Fe3 O4 and CoFe2 O4 nanoparticles are synthesized using Massart's coprecipitation technique. Successful surface modification with the SAM forming compounds 1-methyl-3-(dodecylphosphonic acid) imidazolium bromide, or (2-{2-[2-hydroxy-ethoxy]-ethoxy}-ethyl phosphonic acid provides biocompatibility and long-term stability of the Fe3 O4 and CoFe2 O4 nanoparticles in cell media...
April 18, 2018: Small
https://www.readbyqxmd.com/read/29667279/baicalein-disturbs-the-morphological-plasticity-and-motility-of-breast-adenocarcinoma-cells-depending-on-the-tumor-microenvironment
#17
Takeshi Terabayashi, Katsuhiro Hanada, Kou Motani, Hidetaka Kosako, Mami Yamaoka, Toshihide Kimura, Toshimasa Ishizaki
During tumor invasion, cancer cells change their morphology and mode of migration based on communication with the surrounding environment. Numerous studies have indicated that paracrine interactions from non-neoplastic cells impact the migratory and invasive properties of cancer cells. Thus, these interactions are potential targets for anticancer therapies. In this study, we showed that the flavones member baicalein suppresses the motility of breast cancer cells that is promoted by paracrine interactions. First, we identified laminin-332 (LN-332) as a principle paracrine factor in conditioned medium from mammary epithelium-derived MCF10A cells that regulates the morphology and motility of breast adenocarcinoma MDA-MB-231 cells...
April 18, 2018: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/29667156/how-we-manage-patients-with-plasmacytomas
#18
REVIEW
Despina Fotiou, Meletios A Dimopoulos, Efstathios Kastritis
PURPOSE OF REVIEW: To discuss the diagnostic approach, treatment options, and future considerations in the management of plasmacytomas, either solitary or in the context of overt multiple myeloma (MM). RECENT FINDINGS: Advanced imaging techniques such as whole-body magnetic resonance imaging and positron emission tomography/computerized tomography are essential for the diagnostic workup of solitary plasmacytomas (SP) to rule out the presence of other disease foci...
April 17, 2018: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/29667105/the-role-of-autophagy-in-the-resistance-to-braf-inhibition-in-braf-mutated-melanoma
#19
Xiao Liu, Jinfeng Wu, Haihong Qin, Jinhua Xu
Malignant melanoma is the most aggressive and notorious skin cancer, and metastatic disease is associated with very poor long-term survival outcomes. Although metastatic melanoma patients with oncogenic mutations in the BRAF gene initially respond well to the treatment with specific BRAF inhibitors, most of them will eventually develop resistance to this targeted therapy. As a highly conserved catabolic process, autophagy is responsible for the maintenance of cellular homeostasis and cell survival, and is involved in multiple diseases, including cancer...
April 17, 2018: Targeted Oncology
https://www.readbyqxmd.com/read/29667069/the-versatile-role-of-exosomes-in-cancer-progression-diagnostic-and-therapeutic-implications
#20
REVIEW
Vignesh Sundararajan, Fazlul H Sarkar, Thamil Selvee Ramasamy
BACKGROUND: Recent advances in cancer biology have highlighted the relevance of exosomes and nanovesicles as carriers of genetic and biological messages between cancer cells and their immediate and/or distant environments. It has been found that these molecular cues may play significant roles in cancer progression and metastasis. Cancer cells secrete exosomes containing diverse molecules that can be transferred to recipient cells and/or vice versa to induce a plethora of biological processes, including angiogenesis, metastasis formation, therapeutic resistance, epithelial-mesenchymal transition and epigenetic/stemness (re)programming...
April 17, 2018: Cellular Oncology (Dordrecht)
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