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https://www.readbyqxmd.com/read/28107977/ultrasensitive-detection-of-mucin-1-biomarker-by-immuno-loop-mediated-isothermal-amplification
#1
Hongmei Cao, Xueen Fang, Haipeng Li, Hua Li, Jilie Kong
Mucin 1 (MUC-1), a glycoprotein over-expressed on most malignant epithelial cell surfaces, such as colorectal, lung, prostate, pancreatic, ovarian, and bladder carcinomas, has been confirmed as a useful biomarker for the diagnosis of early cancers. Therefore, it is very important for early cancer diagnoses to develop the sensitive and specific detection approach of MUC-1. In this paper, we report a novel technique of aptamer-based Immuno-Loop-Mediated Isothermal Amplification (Im-LAMP) for the quantitative detection of MUC-1 by MUC-1 aptamer with high affinity for MUC-1...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28106372/folate-engineered-microvesicles-for-enhanced-target-and-synergistic-therapy-towards-breast-cancer
#2
Lian Zhu, Di Dong, Zi-Li Yu, Yi-Fang Zhao, Dai-Wen Pang, Zhi-Ling Zhang
As an ideal nanovector candidate, microvesicles (MVs) have been gradually utilized for packaging kinds of functional molecules for effective tumor diagnosis and therapy; however, the deficiency of their tumor targeting influenced their therapy efficacy. Through a facile phospholipid substitution strategy, MVs based drug delivery system (DDS) was apparently endowed with high tumor targeting towards breast cancer thanks to the modified folate onto the membrane of MVs, simultaneously possessed of synergistic anti-tumor effect, and in vivo tumor imaging attributed to the SA-QDs labeling...
January 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28104771/circulating-noncoding-rnas-as-biomarkers-of-cardiovascular-disease-and-injury
#3
REVIEW
Janika Viereck, Thomas Thum
The discovery of thousands of noncoding RNAs (ncRNAs) has expanded our view on mammalian genomes and transcriptomes, as well as their organization and regulation. Accumulating evidence on aberrantly regulated ncRNAs, including short microRNAs, long ncRNAs and circular RNAs, across various heart diseases indicates that ncRNAs are critical contributors to cardiovascular pathophysiology. In addition, ncRNAs are released into the circulation where they are present in concentration levels that differ between healthy subjects and diseased patients...
January 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/28103909/potential-diagnostic-biomarkers-for-chronic-kidney-disease-of-unknown-etiology-ckdu-in-sri-lanka-a-pilot-study
#4
Saravanabavan Sayanthooran, Dhammika N Magana-Arachchi, Lishanthe Gunerathne, Tilak Abeysekera
BACKGROUND: In Sri Lanka, there exists chronic kidney disease of both known (CKD) and unknown etiologies (CKDu). Identification of novel biomarkers that are customized to the specific causative factors would lead to early diagnosis and clearer prognosis of the diseases. This study aimed to find genetic biomarkers in blood to distinguish and identify CKDu from CKD as well as healthy populations from CKDu endemic and non-endemic areas of Sri Lanka. METHODS: The expression patterns of a selected panel of 12 potential genetic biomarkers were analyzed in blood using RT-qPCR...
January 19, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28103204/transthoracic-ultrasonography-for-the-immunocompromised-patient-a-pilot-project-that-introduces-transthoracic-ultrasonography-for-the-follow-up-of-hematological-patients-in-romania
#5
Ioana Frinc, Petru Ilies, Florin Zaharie, Delia Dima, Alina Tanase, Ljubomir Petrov, Alexandru Irimie, Cristian Berce, Cosmin Lisencu, Ioana Berindan-Neagoe, Ciprian Tomuleasa, Anca Bojan
In the last decade, there is significant progress in clinical hematology with the discovery of targeted molecules and thus the achievement of both hematologic and molecular responses. Nevertheless, chemotherapy remains the treatment of choice for many types of hematological malignancies. Aggressive chemotherapy leads to immunosuppression, accompanied by a high rate of infections and an increased rate of treatment-related mortality. Invasive fungal infections, as well as more common bacterial and viral infections are frequent in immunocompromised patients as they are difficult to diagnose and treat...
January 18, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28103010/a-fluorescent-hsp90-probe-demonstrates-the-unique-association-between-extracellular-hsp90-and-malignancy-in-vivo
#6
Lauren B Crowe, Philip F Hughes, David A Alcorta, Takuya Osada, Aaron P Smith, Juliane Totzke, David R Loiselle, Isaac D Lutz, Madhusudhana Gargesha, Debasish Roy, Jose Roques, David Darr, H Kim Lyerly, Neil L Spector, Timothy Aj Haystead
Extracellular expression of heat shock protein 90 (eHsp90) by tumor cells is correlated with malignancy. Development of small molecule probes that can detect eHsp90 in vivo may therefore have utility in the early detection of malignancy. We synthesized a cell impermeable far-red fluorophore-tagged Hsp90 inhibitor to target eHsp90 in vivo. High resolution confocal and lattice light sheet microscopy show that probe-bound eHsp90 accumulates in punctate structures on the plasma membrane of breast tumor cells and is actively internalized...
January 19, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28101591/functions-of-cancer-derived-extracellular-vesicles-in-immunosuppression
#7
REVIEW
Liliana Czernek, Markus Düchler
Extracellular vesicles, including exosomes, constitute an important element of intercellular communication by carrying a variety of molecules from producer to target cells. The transport of mRNA and miRNA can directly modulate gene expression in the target cells. The miRNA content in exosomes is characteristic for the cell from which the vesicles were derived enabling the usage of exosomes as biomarkers for the diagnosis various diseases, including cancer. Cancer-derived exosomes support the survival and progression of tumors in many ways and also contribute to the neutralization of the anti-cancer immune response...
January 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28101227/downregulation-of-mir-23b-in-plasma-is-associated-with-poor-prognosis-in-patients-with-colorectal-cancer
#8
Chang-Hua Kou, Tian Zhou, Xi-Lin Han, Hui-Jie Zhuang, Hai-Xin Qian
MicroRNAs (miRNAs) are short, non-coding RNA molecules that act as regulators of gene expression. Circulating blood miRNAs have potential as cancer biomarkers. The main objective of the present study was to assess the effect of miRNA-23b (miR-23b) expression in plasma on the diagnosis and prognosis of colorectal cancer (CRC). Reverse transcription-quantitative polymerase chain reaction (PCR) was used to measure miR-23b expression levels, and methylation-specific PCR was used to test the promoter methylation status...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100051/basement-membrane-mimics-of-biofunctionalized-nanofibers-for-a-bipolar-cultured-human-primary-alveolar-capillary-barrier-model
#9
Akihiro Nishiguchi, Smriti Singh, Matthias Wessling, Charles James Kirkpatrick, Martin Moeller
In vitro reconstruction of an alveolar barrier for modeling normal lung functions and pathological events serve as reproducible, high-throughput pharmaceutical platforms for drug discovery, diagnosis, and regenerative medicine. Despite much effort, the reconstruction of organ-level alveolar barrier functions has failed due to the lack of structural similarity to the natural basement membrane, functionalization with specific ligands for alveolar cell function, the use of primary cells and biodegradability. Here we report a bipolar cultured alveolar-capillary barrier model of human primary cells supported by a basement membrane mimics of fully-synthetic bifunctional nanofibers...
January 18, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28098202/superresolution-imaging-of-clinical-formalin-fixed-paraffin-embedded-breast-cancer-with-single-molecule-localization-microscopy
#10
Matthew K Creech, Jing Wang, Xiaolin Nan, Summer L Gibbs
Millions of archived formalin-fixed, paraffin-embedded (FFPE) specimens contain valuable molecular insight into healthy and diseased states persevered in their native ultrastructure. To diagnose and treat diseases in tissue on the nanoscopic scale, pathology traditionally employs electron microscopy (EM), but this platform has significant limitations including cost and painstaking sample preparation. The invention of single molecule localization microscopy (SMLM) optically overcame the diffraction limit of light to resolve fluorescently labeled molecules on the nanoscale, leading to many exciting biological discoveries...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28092102/micrornas-potential-candidates-for-diagnosis-and-treatment-of-colorectal-cancer
#11
REVIEW
Abdullah Moridikia, Hamed Mirzaei, Amirhossein Sahebkar, Jafar Salimian
Colorectal cancer (CRC) is known as the third common cancer worldwide and an important public health problem in different populations. Several genetics and environmental risk factors are involved in the development and progression of CRC including chromosomal abnormalities, epigenetic alterations, and unhealthy lifestyle. Identification of risk factors and biomarkers could lead to a better understanding of molecular pathways involved in CRC pathogenesis. MicroRNAs (miRNAs) are important regulatory molecules which could affect a variety of cellular and molecular targets in CRC...
January 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28088342/nanoparticle-standards-for-immuno-based-quantitation-of-%C3%AE-synuclein-oligomers-in-diagnostics-of-parkinson-s-disease-and-other-synucleopathies
#12
Yvonne Herrmann, Tuyen Bujnicki, Christian Zafiu, Andreas Kulawik, Katja Kühbach, Luriano Peters, Judith Fabig, Johannes Willbold, Oliver Bannach, Dieter Willbold
Parkinson's disease is a neurodegenerative disorder that is characterized by symptoms such as rigor, tremor and bradykinesia. A reliable and early diagnosis could improve the development of early therapeutic strategies before death of dopaminergic neurons leads to the first clinical symptoms. The sFIDA (surface-based fluorescence intensity distribution analysis) assay is a highly sensitive method to determine the concentration of α-synuclein (α-syn) oligomers, which are presumably the major toxic isoform of α-syn and potentially the most direct biomarker for PD...
January 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28087392/predictors-and-mechanisms-of-epilepsy-occurrence-in-cerebral-gliomas-what-to-look-for-in-clinicopathology
#13
Cheng Huang, Xiao-Sa Chi, Xin Hu, Ni Chen, Qiao Zhou, Dong Zhou, Jin-Mei Li
Gliomas, especially low-grade gliomas, are highly epileptogenic brain tumors. Histopathological information is valuable in evaluating the diagnosis and/or biologic behavior of various gliomas. Here we explored the clinical data and histopathological predictors of the occurrence of epilepsy in patients with gliomas. A retrospective study examined 310 consecutive patients who had undergone surgical treatment for gliomas in our institution from January 2013 to January 2015. Clinical data and pathological examination results were analyzed...
January 11, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28076849/a-plasma-metabolomic-signature-discloses-human-breast-cancer
#14
Mariona Jové, Ricardo Collado, José Luís Quiles, Mari-Carmen Ramírez-Tortosa, Joaquim Sol, Maria Ruiz-Sanjuan, Mónica Fernandez, Capilla de la Torre Cabrera, Cesar Ramírez-Tortosa, Sergio Granados-Principal, Pedro Sánchez-Rovira, Reinald Pamplona
PURPOSE: Metabolomics is the comprehensive global study of metabolites in biological samples. In this retrospective pilot study we explored whether serum metabolomic profile can discriminate the presence of human breast cancer irrespective of the cancer subtype. METHODS: Plasma samples were analyzed from healthy women (n = 20) and patients with breast cancer after diagnosis (n = 91) using a liquid chromatography-mass spectrometry platform. Multivariate statistics and a Random Forest (RF) classifier were used to create a metabolomics panel for the diagnosis of human breast cancer...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28076842/systemically-identifying-and-prioritizing-risk-lncrnas-through-integration-of-pan-cancer-phenotype-associations
#15
Chaohan Xu, Rui Qi, Yanyan Ping, Jie Li, Hongying Zhao, Li Wang, Michael Yifei Du, Yun Xiao, Xia Li
LncRNAs have emerged as a major class of regulatory molecules involved in normal cellular physiology and disease, our knowledge of lncRNAs is very limited and it has become a major research challenge in discovering novel disease-related lncRNAs in cancers. Based on the assumption that diverse diseases with similar phenotype associations show similar molecular mechanisms, we presented a pan-cancer network-based prioritization approach to systematically identify disease-specific risk lncRNAs by integrating disease phenotype associations...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28076311/biomarkers-of-acute-kidney-injury-the-pathway-from-discovery-to-clinical-adoption
#16
Kianoush Kashani, Wisit Cheungpasitporn, Claudio Ronco
Acute kidney injury (AKI) is a common complication of critical illnesses and has a significant impact on outcomes, including mortality and morbidities. Unfortunately, apart from prophylactic measures, no effective treatment for this syndrome is known. Therefore, early recognition of AKI not only can provide better opportunities for preventive interventions, but also opens many gates for research and development of effective therapeutic options. Over the last few years, several new AKI biomarkers have been discovered and validated to improve early detection, differential diagnosis, and differentiation of patients into risk groups for progressive renal failure, need for renal replacement therapy (RRT), or death...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28075469/urinary-kidney-injury-molecule%C3%A2-1-as-an-early-diagnostic-biomarker-of-obstructive-acute-kidney-injury-and-development-of-a-rapid-detection-method
#17
Yingli Jin, Xiaona Shao, Bo Sun, Chunsheng Miao, Zhengqiang Li, Yan Shi
The aim of the present study was to investigate whether urinary kidney injury molecule‑1 (KIM‑1) presents a suitable early diagnostic biomarker of obstructive nephropathy‑induced acute kidney injury (AKI), and to develop a rapid detection method for urinary KIM‑1. Obstructive AKI was induced in an experimental rat model by a unilateral ureteral obstruction (UUO) operation. Macro‑ and micromorphological kidney alterations were determined by visual observation and hematoxylin and eosin (HE) staining, respectively...
January 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28074906/antiproliferative-effects-of-1%C3%AE-oh-vitd3-in-malignant-melanoma-potential-therapeutic-implications
#18
Lucia Spath, Alessandra Ulivieri, Luca Lavra, Laura Fidanza, Marta Carlesimo, Maria Giubettini, Alessandra Narcisi, Emidio Luciani, Barbara Bucci, Daniela Pisani, Salvatore Sciacchitano, Armando Bartolazzi
Early detection and surgery represent the mainstay of treatment for superficial melanoma, but for high risk lesions (Breslow's thickness >0.75 mm) an effective adjuvant therapy is lacking. Vitamin D insufficiency plays a relevant role in cancer biology. The biological effects of 1α hydroxycholecalciferol on experimental melanoma models were investigated. 105 melanoma patients were checked for 25-hydroxycholecalciferol (circulating vitamin D) serum levels. Human derived melanoma cell lines and in vivo xenografts were used for studying 1α-hydroxycholecalciferol-mediated biological effects on cell proliferation and tumor growth...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073028/multiplexed-detection-of-lung-cancer-biomarkers-in-patients-serum-with-cmos-compatible-silicon-nanowire-arrays
#19
Anran Gao, Xun Yang, Jing Tong, Lin Zhou, Yuelin Wang, Jianlong Zhao, Hongju Mao, Tie Li
In this work, a real-time assay for highly sensitive, label-free, multiplexed electrical detection of lung cancer biomarkers was developed by using silicon nanowire field-effect (SiNW-FET) devices. Highly responsive SiNW arrays were fabricated using a CMOS-compatible anisotropic self-stop etching technique with mass reproducibility and low cost character. The SiNW nanosensor was integrated with PDMS microfluidic device, which allows rapid analyte delivery, makes the analysis to be conducted using exceedingly small samples and enables potential multiplexed detection...
January 3, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28068297/fatty-acid-derivative-chemokine-and-cytokine-profiles-in-exhaled-breath-condensates-can-differentiate-adult-and-children-paucibacillary-tuberculosis-patients
#20
Sergio Fabián Mosquera-Restrepo, Ana Cecilia Caro, Luis F García, Carlos Alberto Peláez-Jaramillo, Mauricio Rojas
The anti-mycobacterial immune response in adults and children with tuberculosis (TB), as well as the response in bacteriologically positive and negative patients, is different. However, knowledge of the immunological events occurring in the lungs in these clinical situations remains scarce. Exhaled breath condensate (EBC) samples may be useful for studying the inflammatory environment of the lower airways in TB patients. The fatty acid, cytokine, and chemokine profiles in EBC from healthy adults; smear-positive and smear-negative adult patients; and healthy, asthmatic, and TB children were determined using gas chromatography and LUMINEX, respectively...
January 9, 2017: Journal of Breath Research
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