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Biomarker Research

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https://www.readbyqxmd.com/read/29441205/sphingosine-kinase-2-supports-the-development-of-bcr-abl-independent-acute-lymphoblastic-leukemia-in-mice
#1
Vicki Xie, Daochen Tong, Craig T Wallington-Beddoe, Ken F Bradstock, Linda J Bendall
Background: Sphingosine kinase (SphK) 2 has been implicated in the development of a range of cancers and inhibitors of this enzyme are currently in clinical trial. We have previously demonstrated a role for SphK2 in the development of acute lymphoblastic leukemia (ALL). Methods: In this and our previous study we use mouse models: in the previous study the disease was driven by the proto-oncogene BCR/ABL1, while in this study cancer risk was elevated by deletion of the tumor suppressor ARF...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29387418/comparative-analysis-of-cerebrospinal-fluid-metabolites-in-alzheimer-s-disease-and-idiopathic-normal-pressure-hydrocephalus-in-a-japanese-cohort
#2
Yuki Nagata, Akiyoshi Hirayama, Satsuki Ikeda, Aoi Shirahata, Futaba Shoji, Midori Maruyama, Mitsunori Kayano, Masahiko Bundo, Kotaro Hattori, Sumiko Yoshida, Yu-Ichi Goto, Katsuya Urakami, Tomoyoshi Soga, Kouichi Ozaki, Shumpei Niida
Background: Alzheimer's disease (AD) is a most common dementia in elderly people. Since AD symptoms resemble those of other neurodegenerative diseases, including idiopathic normal pressure hydrocephalus (iNPH), it is difficult to distinguish AD from iNPH for a precise and early diagnosis. iNPH is caused by the accumulation of cerebrospinal fluid (CSF) and involves gait disturbance, urinary incontinence, and dementia. iNPH is treatable with shunt operation which removes accumulated CSF from the brain ventricles...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29387417/biomarkers-of-cytokine-release-syndrome-and-neurotoxicity-related-to-car-t-cell-therapy
#3
REVIEW
Zhenguang Wang, Weidong Han
Severe cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T cell (CAR-T) therapy can be life-threatening in some cases, and management of those toxicities is still a great challenge for physicians. Researchers hope to understand the pathophysiology of CRS and neurotoxicity, and identify predictive biomarkers that can forecast those toxicities in advance. Some risk factors for severe CRS and/or neurotoxicity including patient and treatment characteristics have been identified in multiple clinical trials of CAR-T cell therapy...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29344362/development-of-biomarker-combinations-for-postoperative-acute-kidney-injury-via-bayesian-model-selection-in-a-multicenter-cohort-study
#4
Allison Meisner, Kathleen F Kerr, Heather Thiessen-Philbrook, Francis Perry Wilson, Amit X Garg, Michael G Shlipak, Peter Kavsak, Richard P Whitlock, Steven G Coca, Chirag R Parikh
Background: Acute kidney injury (AKI) is a frequent complication of cardiac surgery. We sought prognostic combinations of postoperative biomarkers measured within 6 h of surgery, potentially in combination with cardiopulmonary bypass time (to account for the degree of insult to the kidney). We used data from a large cohort of patients and adapted methods for developing biomarker combinations to account for the multicenter design of the study. Methods: The primary endpoint was sustained mild AKI, defined as an increase of 50% or more in serum creatinine over preoperative levels lasting at least 2 days during the hospital stay...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29344361/platelet-protein-biomarker-panel-for-ovarian-cancer-diagnosis
#5
Marta Lomnytska, Rui Pinto, Susanne Becker, Ulla Engström, Sonja Gustafsson, Christina Björklund, Markus Templin, Jan Bergstrand, Lei Xu, Jerker Widengren, Elisabeth Epstein, Bo Franzén, Gert Auer
Background: Platelets support cancer growth and spread making platelet proteins candidates in the search for biomarkers. Methods: Two-dimensional (2D) gel electrophoresis, Partial Least Squares Discriminant Analysis (PLS-DA), Western blot, DigiWest. Results: PLS-DA of platelet protein expression in 2D gels suggested differences between the International Federation of Gynaecology and Obstetrics (FIGO) stages III-IV of ovarian cancer, compared to benign adnexal lesions with a sensitivity of 96% and a specificity of 88%...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29308206/sall4-as-a-transcriptional-and-epigenetic-regulator-in-normal-and-leukemic-hematopoiesis
#6
REVIEW
Jianchang Yang
In recent years, there has been substantial progress in our knowledge of the molecular pathways by which stem cell factor SALL4 regulates the embryonic stem cell (ESC) properties, developmental events, and human cancers. This review summarizes recent advances in the biology of SALL4 with a focus on its regulatory functions in normal and leukemic hematopoiesis. In the normal hematopoietic system, expression of SALL4 is mainly enriched in the bone marrow hematopoietic stem/progenitor cells (HSCs/HPCs), but is rapidly silenced following lineage differentiation...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29255607/interleukin-10-and-soluble-tumor-necrosis-factor-receptor-ii-are-potential-biomarkers-of-plasmodium-falciparum-infections-in-pregnant-women-a-case-control-study-from-nanoro-burkina-faso
#7
E Ruizendaal, H D F H Schallig, J Bradley, M Traore-Coulibaly, P Lompo, U d'Alessandro, S Scott, F Njie, S H Zango, O Sawadogo, M D de Jong, H Tinto, P F Mens
Background: Diagnosis of malaria in pregnancy is problematic due to the low sensitivity of conventional diagnostic tests (rapid diagnostic test and microscopy), which is exacerbated due to low peripheral parasite densities, and lack of clinical symptoms. In this study, six potential biomarkers to support malaria diagnosis in pregnancy were evaluated. Methods: Blood samples were collected from pregnant women at antenatal clinic visits and at delivery. Microscopy and real-time PCR were performed for malaria diagnosis and biomarker analyses were performed by ELISA (interleukin 10, IL-10; tumor necrosis factor-α, TNF-α; soluble tumor necrosis factor receptor II, sTNF-RII; soluble fms-like tyrosine kinase 1, sFlt-1; leptin and apolipoprotein B, Apo-B)...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29225884/setbp1-mutations-as-a-biomarker-for-myelodysplasia-myeloproliferative-neoplasm-overlap-syndrome
#8
REVIEW
Katherine Linder, Chaitanya Iragavarapu, Delong Liu
Myelodysplasia (MDS) /myeloproliferative neoplasm (MPN) overlap syndrome has been described since the 2001 WHO classification as disorders that have both proliferative and dysplastic changes simultaneously. Specific disorders include chronic myelomonocytic leukemia (CMML), juvenile myelomonocytic leukemia (JMML), BCR-ABL negative atypical chronic myeloid leukemia (aCML) and unclassifiable MDS/MPN (MPN/MDS-U). Recurrent gene mutations in these conditions have been described. Among them, SETBP1 mutations have been identified in up to 32% of aCML, 24% of JMML, 18% of CMML and 10% of MDS/MPN-U patients...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29152306/evaluation-of-two-high-throughput-proteomic-technologies-for-plasma-biomarker-discovery-in-immunotherapy-treated-melanoma-patients
#9
Su Yin Lim, Jenny H Lee, Sarah J Welsh, Seong Beom Ahn, Edmond Breen, Alamgir Khan, Matteo S Carlino, Alexander M Menzies, Richard F Kefford, Richard A Scolyer, Georgina V Long, Helen Rizos
Background: Selective kinase and immune checkpoint inhibitors, and their combinations, have significantly improved the survival of patients with advanced metastatic melanoma. Not all patients will respond to treatment however, and some patients will present with significant toxicities. Hence, the identification of biomarkers is critical for the selection and management of patients receiving treatment. Biomarker discovery often involves proteomic techniques that simultaneously profile multiple proteins but few studies have compared these platforms...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29152305/critical-appraisal-of-the-role-of-serum-albumin-in-cardiovascular-disease
#10
REVIEW
Shih-Chieh Chien, Chun-Yen Chen, Chao-Feng Lin, Hung-I Yeh
Concentration of serum albumin (SA), a multifunctional circulatory protein, is influenced by several factors, including its synthesis rate, catabolism rate, extravascular distribution, and exogenous loss. Moreover, both nutritional status and systemic inflammation affect the synthesis of SA. Determining SA concentration aids in risk prediction in various clinical settings. It is of interest to understand the prognostic value of SA in the full spectrum of cardiovascular disease (CVD) in the era of newly developed pharmacological and interventional treatments...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29075496/assessing-biological-and-technological-variability-in-protein-levels-measured-in-pre-diagnostic-plasma-samples-of-women-with-breast-cancer
#11
Christine Y Yeh, Ravali Adusumilli, Majlinda Kullolli, Parag Mallick, Esther M John, Sharon J Pitteri
BACKGROUND: Quantitative proteomics allows for the discovery and functional investigation of blood-based pre-diagnostic biomarkers for early cancer detection. However, a major limitation of proteomic investigations in biomarker studies remains the biological and technical variability in the analysis of complex clinical samples. Moreover, unlike 'omics analogues such as genomics and transcriptomics, proteomics has yet to achieve reproducibility and long-term stability on a unified technological platform...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29046806/development-of-a-fully-automated-chemiluminescence-immunoassay-for-urine-monomeric-laminin-%C3%AE-2-as-a-promising-diagnostic-tool-of-non-muscle-invasive-bladder-cancer
#12
Masatoshi Nakagawa, Takashi Karashima, Masayuki Kamada, Eisaku Yoshida, Toru Yoshimura, Masanori Nojima, Keiji Inoue, Taro Shuin, Motoharu Seiki, Naohiko Koshikawa
BACKGROUND: Monomeric laminin-γ2 in urine is a potential biomarker for bladder cancer. However, the current detection system uses an antibody that cannot discriminate between monomeric laminin-γ2 and the heterotrimeric γ2 chain of laminin-332, which may cause false-positive reactions. The present study aimed to develop a fully automated chemiluminescence immunoassay system using a specific monoclonal antibody against monomeric laminin-γ2. METHODS: In total, 237 urine specimens (84 from patients with bladder cancer, 48 from patients with benign urological disease, and 105 from healthy donors) were collected, and monomeric laminin-γ2 values in the urine were measured using a fully automated chemiluminescence immunoassay...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29018524/re-evaluation-of-soluble-app-%C3%AE-and-app-%C3%AE-in-cerebrospinal-fluid-as-potential-biomarkers-for-early-diagnosis-of-dementia-disorders
#13
Wataru Araki, Kotaro Hattori, Kazutomi Kanemaru, Yuma Yokoi, Yoshie Omachi, Harumasa Takano, Masuhiro Sakata, Sumiko Yoshida, Tadashi Tsukamoto, Miho Murata, Yuko Saito, Hiroshi Kunugi, Yu-Ichi Goto, Utako Nagaoka, Masahiro Nagao, Takashi Komori, Kunimasa Arima, Kenji Ishii, Shigeo Murayama, Hiroshi Matsuda, Hisateru Tachimori, Yumiko M Araki, Hidehiro Mizusawa
BACKGROUND: Because soluble (or secreted) amyloid precursor protein-β (sAPPβ) and -α (sAPPα) possibly reflect pathological features of Alzheimer's disease (AD), they are potential biomarker candidates for dementia disorders, including AD and mild cognitive impairment (MCI) due to AD (MCI-AD). However, controversial results have been reported regarding their alterations in the cerebrospinal fluid (CSF) of AD and MCI-AD patients. In this study, we re-assessed the utility of sAPPα and sAPPβ in CSF as diagnostic biomarkers of dementia disorders...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29018523/comparative-study-of-two-protocols-for-quantitative-image-analysis-of-serotonin-transporter-clustering-in-lymphocytes-a-putative-biomarker-of-therapeutic-efficacy-in-major-depression
#14
Raquel Romay-Tallon, Tania Rivera-Baltanas, Josh Allen, Jose M Olivares, Lisa E Kalynchuk, Hector J Caruncho
BACKGROUND: The pattern of serotonin transporter clustering on the plasma membrane of lymphocytes extracted from human whole blood samples has been identified as a putative biomarker of therapeutic efficacy in major depression. Here we evaluated the possibility of performing a similar analysis using blood smears obtained from rats, and from control human subjects and depression patients. We hypothesized that we could optimize a protocol to make the analysis of serotonin protein clustering in blood smears comparable to the analysis of serotonin protein clustering using isolated lymphocytes...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28815041/-upregulation-of-cd47-by-the-endoplasmic-reticulum-stress-pathway-controls-anti-tumor-immune-responses
#15
Katherine L Cook, David R Soto-Pantoja
We recently demonstrated that targeting the unfolded protein response (UPR) protein GRP78 down-regulates CD47 expression, resulting in increased tumor macrophage infiltration and inhibited resistance to anti-estrogen therapy. We now show new data indicating that anti-estrogen therapy regulates CD47 expression and implicates its ligand, thrombospondin-1, in regulation of tumor macrophage infiltration. Moreover, GRP78 and CD47 co-expression is associated with poor prognosis in breast cancer patients, suggesting the existence of crosstalk between UPR and immunity that regulates therapeutic responses in breast cancer...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28804638/tumor-associated-macrophages-potential-targets-for-cancer-treatment
#16
REVIEW
Li Yang, Yi Zhang
The fact that various immune cells, including macrophages, can be found in tumor tissues has long been known. With the introduction of concept that macrophages differentiate into a classically or alternatively activated phenotype, the role of tumor-associated macrophages (TAMs) is now beginning to be elucidated. TAMs act as "protumoral macrophages", contributing to disease progression. As the relationship between TAMs and malignant tumors becomes clearer, TAMs are beginning to be seen as potential therapeutic targets in these cases...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28702194/elevation-of-brain-enriched-mirnas-in-cerebrospinal-fluid-of-patients-with-acute-ischemic-stroke
#17
Sofie Sølvsten Sørensen, Ann-Britt Nygaard, Anting Liu Carlsen, Niels H H Heegaard, Mads Bak, Thomas Christensen
BACKGROUND: The purpose of this study was to investigate the potential of cerebrospinal fluid miRNAs as diagnostic biomarkers of acute ischemic stroke using three different profiling techniques in order to identify and bypass any influence from technical variation. METHODS: Cerebrospinal fluid (CSF) from patients with acute ischemic stroke (n = 21) and controls (n = 21) was collected by lumbar puncture. miRNA analysis was performed with three different methods: 1) Trizol RNA extraction followed by Illumina Next Generation Sequencing (NGS) on all small RNAs, 2) Exiqon RNA extraction protocol and miRNA qPCR assays, and 3) validation of 24 selected miRNAs with Norgen Biotek RNA extraction protocol and Applied Biosystems qPCR assays...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28702193/update-on-the-first-line-treatment-for-helicobacter-pylori-infection-a-continuing-challenge-from-an-old-enemy
#18
REVIEW
Chih-Chieh Huang, Kuo-Wang Tsai, Tzung-Jiun Tsai, Ping-I Hsu
Because the prevalence of antibiotic resistance markedly increases with time worldwide, anti-H. pylori treatment is continuing to be a great challenge forsphysicians in clinical practice. The Real-world Practice & Expectation of Asia-Pacific Physicians and Patients in Helicobacter Pylori Eradication (REAP-HP) Survey demonstrated that the accepted minimal eradication rate of anti-H. pylori regimen in H. pylori-infected patients was 91%. The Kyoto Consensus Report on Helicobacter Pylori Gastritis also recommended that, within any region, only regimens which reliably produce eradication rates of ≥90% in that population should be used for empirical treatment...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28652918/engineering-car-t-cells
#19
REVIEW
Cheng Zhang, Jun Liu, Jiang F Zhong, Xi Zhang
Chimeric antigen receptor redirected T cells (CAR-T cells) have achieved inspiring outcomes in patients with B cell malignancies, and are now being investigated in other hematologic malignancies and solid tumors. CAR-T cells are generated by the T cells from patients' or donors' blood. After the T cells are expanded and genetically modified, they are reinfused into the patients. However, many challenges still need to be resolved in order for this technology to gain widespread adoption. In this review, we first discuss the structure and evolution of chimeric antigen receptors...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28616237/higher-serum-concentrations-of-vimentin-and-dakp1-are-associated-with-aggressive-breast-tumour-phenotypes-in-ghanaian-women
#20
Benjamin Arko-Boham, Justice Tanihu Lomotey, Emmanuel Nomo Tetteh, Emmanuel Ayitey Tagoe, Nii Ayite Aryee, Ewurama Ampadu Owusu, Isaac Okai, Richard Michael Blay, Joe-Nat Clegg-Lamptey
BACKGROUND: Breast cancer, the most commonly diagnosed cancer among women and leading cause of cancer-related deaths worldwide, exhibits aggressive behavior in indigenous African women evidenced by high histologic grade tumours with low hormone receptor positivity. Aggressive breast cancers grow quickly, easily metastasize and recur and often have unfavourable outcomes. The current study investigated candidate genes that may regulate tumour aggression in Ghanaian women. We hypothesize that increased expression and function of certain genes other than the widely-held view attributing breast cancer aggression in African populations to their younger population age may be responsible for the aggressive nature of tumours...
2017: Biomarker Research
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