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Biomarker Research

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https://www.readbyqxmd.com/read/28194276/a-case-report-of-concurrent-embryonal-rhabdomyosarcoma-and-diffuse-large-b-cell-lymphoma-in-an-adult-without-identifiable-cancer-predisposition
#1
M D Mathias, M V Ortiz, H Magnan, S R Ambati, E K Slotkin, A J Chou, M F Walsh, K Offit, C Moskowitz, A Kentsis, L H Wexler
BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) is the most common form of non-Hodgkin lymphoma. Rhabdomyosarcoma, the most common soft tissue sarcoma of childhood. makes up less than 1% of solid malignancies in adults with around 400 new cases each year in the United States. They have not previously been reported concurrently. CASE PRESENTATION: A 37 year old woman presented with painful enlarging leg mass. Biopsy of the mass was consistent with embryonal rhabdomyosarcoma...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28194275/inappropriate-costimulation-and-aberrant-dna-methylation-as-therapeutic-targets-in-angioimmunoblastic-t-cell-lymphoma
#2
EDITORIAL
Mathijs Willemsen, Harry C Schouten
Angioimmunoblastic T-cell lymphoma (AITL) is one of the most common subtypes of peripheral T-cell lymphoma. Advances in understanding the mutational landscape of AITL have not resulted in improved prognosis nor consensus regarding optimal first-line and second-line treatment. The recently proposed multistep tumorigenesis model for AITL provides a theoretical framework of AITL oncogenesis. In this model, early mutations in epigenetic modifiers interact with late cooperative mutations to enable malignant transformation...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28191314/diagnosis-and-treatment-of-cd20-negative-b-cell-lymphomas
#3
REVIEW
Tasleem Katchi, Delong Liu
CD20 negative B cell non-Hodgkin lymphoma (NHL) is rare and accounts for approximately 1-2% of B cell lymphomas. CD20- negative NHL is frequently associated with extranodal involvement, atypical morphology, aggressive clinical behaviour, resistance to standard chemotherapy and poor prognosis. The most common types of these include plasmablastic lymphoma, primary effusion lymphoma, large B-cell lymphoma arising from HHV8-associated multicentric Castleman's disease, and ALK+ large B cell lymphoma. This review provides an overview of the diagnostic and treatment modalities for CD20 negative B cell NHL...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28191313/metastatic-biomarkers-in-synovial-sarcoma
#4
REVIEW
Rosalia de Necochea-Campion, Lee M Zuckerman, Hamid R Mirshahidi, Shahrzad Khosrowpour, Chien-Shing Chen, Saied Mirshahidi
Synovial sarcoma (SS) is an aggressive soft tissue sarcoma (STS) that typically occurs in the extremities near a joint. Metastatic disease is common and usually occurs in the lungs and lymph nodes. Surgical management is the mainstay of treatment with chemotherapy and radiation typically used as adjuvant treatment. Although chemotherapy has a positive impact on survival, the prognosis is poor if metastatic disease occurs. The biology of sarcoma invasion and metastasis remain poorly understood. Chromosomal translocation with fusion of the SYT and SSX genes has been described and is currently used as a diagnostic marker, although the full impact of the fusion is unknown...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28127430/nos1-nos3-pik3ca-and-mapk-pathways-in-skin-following-radiation-therapy
#5
Steffen Koerdt, Nadine Tanner, Niklas Rommel, Nils H Rohleder, Gesche Frohwitter, Oliver Ristow, Klaus-Dietrich Wolff, Marco R Kesting
BACKGROUND: Essential molecular pathways such as the MAPK pathway, NO system, or the influence of PIK3CA as an oncogene are known to regulate fundamental signalling networks. However, few knowledge about their role in the occurrence of wound healing disorders (WHD) following radiation therapy (RT) exists. This study aims to evaluate the expression profiles of specific molecular pathway marker genes. METHODS: Expression profiles of the genes encoding MAPK, NOS1, NOS3, and PIK3CA were analyzed, by RT-PCR, in specimens from patients with and without a history of RT to the head and neck...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28127429/machine-learning-and-systems-genomics-approaches-for-multi-omics-data
#6
REVIEW
Eugene Lin, Hsien-Yuan Lane
In light of recent advances in biomedical computing, big data science, and precision medicine, there is a mammoth demand for establishing algorithms in machine learning and systems genomics (MLSG), together with multi-omics data, to weigh probable phenotype-genotype relationships. Software frameworks in MLSG are extensively employed to analyze hundreds of thousands of multi-omics data by high-throughput technologies. In this study, we reviewed the MLSG software frameworks and future directions with respect to multi-omics data analysis and integration...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28127428/dna-methyltransferases-and-their-roles-in-tumorigenesis
#7
REVIEW
Wu Zhang, Jie Xu
DNA methylation plays an important role in gene expression, chromatin stability, and genetic imprinting. In mammals, DNA methylation patterns are written and regulated by DNA methyltransferases (DNMTs), including DNMT1, DNMT3A and DNMT3B. Recent emerging evidence shows that defects in DNMTs are involved in tumor transformation and progression, thus indicating that epigenetic disruptions caused by DNMT abnormalities are associated with tumorigenesis. Herein, we review the latest findings related to DNMT alterations in cancer cells and discuss the contributions of these effects to oncogenic phenotypes...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28018598/cd34-and-cd38-are-prognostic-biomarkers-for-acute-b-lymphoblastic-leukemia
#8
REVIEW
Zhiwu Jiang, Di Wu, Shouheng Lin, Peng Li
CD34 and CD38 proteins are usually used as surface markers to identify HSCs and Leukemic stem cells. However, there have been cases that lacked CD34 or CD38 protein but still had leukemia initiating capacity in B-ALL suggesting the restrictive of these two markers. CD34 and CD38 expression were detected in most B-ALL and can serve as a specific biomarker for the prognosis of this subset of leukemia. Lack of CD34 or high CD38 expression is associated with favorable prognosis.
2016: Biomarker Research
https://www.readbyqxmd.com/read/27999674/development-and-validation-of-a-novel-bioassay-to-determine-glucocorticoid-sensitivity
#9
Emily L Williams, Madeleine L Stimpson, Peter L Collins, Doyo G Enki, Ashish Sinha, Richard W Lee, Ashwin D Dhanda
BACKGROUND: Glucocorticoids (GCs) remain the first line treatment for almost all non-infectious inflammatory diseases, ranging from acute asthma to rheumatoid arthritis. However, across all conditions, patients have a variable response to GCs with approximately 30% being non-responders. This group of GC resistant patients is typically exposed to high-dose GCs and their side-effects before more appropriate immunotherapy is instituted. Hence, there is a pressing clinical need for a predictive biomarker of GC responsiveness...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27999673/application-of-multi-target-phytotherapeutic-concept-in-malaria-drug-discovery-a-systems-biology-approach-in-biomarker-identification
#10
REVIEW
Protus Arrey Tarkang, Regina Appiah-Opong, Michael F Ofori, Lawrence S Ayong, Alexander K Nyarko
There is an urgent need for new anti-malaria drugs with broad therapeutic potential and novel mode of action, for effective treatment and to overcome emerging drug resistance. Plant-derived anti-malarials remain a significant source of bioactive molecules in this regard. The multicomponent formulation forms the basis of phytotherapy. Mechanistic reasons for the poly-pharmacological effects of plants constitute increased bioavailability, interference with cellular transport processes, activation of pro-drugs/deactivation of active compounds to inactive metabolites and action of synergistic partners at different points of the same signaling cascade...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27999672/dental-implant-bioactive-surface-modifications-and-their-effects-on-osseointegration-a-review
#11
REVIEW
Hsiu-Wan Meng, Esther Yun Chien, Hua-Hong Chien
BACKGROUND: The purpose of this article is to review and update the current developments of biologically active dental implant surfaces and their effect on osseointegration. METHODS: PubMed was searched for entries from January 2006 to January 2016. Only in-vivo studies that evaluated the effects of biomolecular coatings on titanium dental implants inserted into the bone of animals or humans were included. RESULTS: Thirty four non-review studies provided data and observations were included in this review...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27999671/plasma-microrna-biomarker-detection-for-mild-cognitive-impairment-using-differential-correlation-analysis
#12
Mitsunori Kayano, Sayuri Higaki, Jun-Ichi Satoh, Kenji Matsumoto, Etsuro Matsubara, Osamu Takikawa, Shumpei Niida
BACKGROUND: Mild cognitive impairment (MCI) is an intermediate state between normal aging and dementia including Alzheimer's disease. Early detection of dementia, and MCI, is a crucial issue in terms of secondary prevention. Blood biomarker detection is a possible way for early detection of MCI. Although disease biomarkers are detected by, in general, using single molecular analysis such as t-test, another possible approach is based on interaction between molecules. RESULTS: Differential correlation analysis, which detects difference on correlation of two variables in case/control study, was carried out to plasma microRNA (miRNA) expression profiles of 30 age- and race-matched controls and 23 Japanese MCI patients...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27895916/mechanically-produced-schistosomula-as-a-higher-throughput-tools-for-phenotypic-pre-screening-in-drug-sensitivity-assays-current-research-and-future-trends
#13
REVIEW
Emmanuel Mouafo Tekwu, William Kofi Anyan, Daniel Boamah, Kofi Owusu Baffour-Awuah, Stephanie Keyetat Tekwu, Veronique Penlap Beng, Alexander Kwadwo Nyarko, Kwabena Mante Bosompem
It is crucial to develop new antischistosomal drugs since there is no vaccine and the whole world is relying on only a single drug for the treatment of schistosomiasis. One of the obstacles to the development of drugs is the absence of the high throughput objective screening methods to assess drug compounds efficacy. Thus for identification of new drug compounds candidates, fast and accurate in vitro assays are unavoidable and more research efforts in the field of drug discovery can target schistosomula. This review presents a substantial overview of the present state of in vitro drug sensitivity assays developed so far for the determination of anti-schistosomula activity of drug compounds, natural products and derivatives using newly transformed schistosomula (NTS)...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27795830/advance-in-microrna-as-a-potential-biomarker-for-early-detection-of-pancreatic-cancer
#14
REVIEW
Jing Huang, Jianzhou Liu, Kevin Chen-Xiao, Xuemei Zhang, W N Paul Lee, Vay Liang W Go, Gary Guishan Xiao
Pancreatic cancer is characterized as a disease with low survival and high mortality because of no effective diagnostic and therapeutic strategies available in clinic. Conventional clinical diagnostic methods including serum markers and radiological imaging (CT, MRI, EUS, etc.) often fail to detect precancerous or early stage lesions. Development of effective biomarkers is unmet for reduction of mortality of pancreatic cancer. MicroRNAs (miRNAs) are a group of small non-protein-coding RNAs playing roles in regulation of cell physiology including tumorigenesis, apoptotic escape, proliferation, invasion, epithelial-mesenchymal transition (EMT), metastasis and chemoresistance...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27777768/jak2-v617f-mutation-multiple-hematologic-and-non-hematologic-processes-an-association
#15
Kenneth G Liu, Amit Verma, Olga Derman, Noah Kornblum, Murali Janakiram, Ira Braunschweig, Ramakrishna Battini
BACKGROUND: Population studies showed that patients with JAK2 V617F mutation had increased mortality, and increased risk of any cancer, hematologic cancer, and myeloproliferative disease. CASE PRESENTATION: A 68-year-old Asian male with JAK2 V617F mutation developed four different hematologic and non-hematologic neoplastic processes. In 2009, he was diagnosed with stage IA lung adenocarcinoma and also noted to have worsening leukocytosis and thrombocytosis with peak platelet count of 1,054,000/mL)...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27651903/hypercalcemia-associated-with-isolated-bone-marrow-sarcoidosis-in-a-patient-with-underlying-monoclonal-gammopathy-of-undetermined-significance-case-report-and-review-of-literature
#16
John Gubatan, Xiaohui Wang, Abner Louissaint, Anuj Mahindra, John Vanderpool
BACKGROUND: Bone marrow sarcoidosis is extremely rare. The association between sarcoidosis and lymphoproliferative disorders has been previously speculated, although the diagnosis of sarcoidosis often precedes any hematological derangements. CASE PRESENTATION: Here, we report for the first time, a case of a 57-year-old Caucasian woman with a previous diagnosis of monoclonal gammopathy of undetermined significance (MGUS) developing hypercalcemia and renal failure with workup notable for isolated bone marrow sarcoidosis and not multiple myeloma as expected...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27595000/extramedullary-hematopoiesis-presented-as-cytopenia-and-massive-paraspinal-masses-leading-to-cord-compression-in-a-patient-with-hereditary-persistence-of-fetal-hemoglobin
#17
Tasleem Katchi, Krishna Kolandaivel, Pallavi Khattar, Taliya Farooq, Humayun Islam, Delong Liu
BACKGROUND: Extramedullary hematopoeisis (EMH) can occur in various physiological and pathologic states. The spleen is the most common site of EMH. CASE PRESENTATION: We report a case with hereditary persistence of fetal hemoglobin with extramedullary hematopoiesis presented as cord compression and cytopenia secondary to multi-paraspinal masses. CONCLUSION: Treatment can be a challenge. Relapse is a possibility.
2016: Biomarker Research
https://www.readbyqxmd.com/read/27570624/a-novel-three-way-rearrangement-involving-etv6-12p13-and-abl1-9q34-with-an-unknown-partner-on-3p25-resulting-in-a-possible-etv6-abl1-fusion-in-a-patient-with-acute-myeloid-leukemia-a-case-report-and-a-review-of-the-literature
#18
Carlos A Tirado, Ken Siangchin, David S Shabsovich, Maryam Sharifian, Gary Schiller
BACKGROUND: Acute myeloid leukemia (AML) is commonly characterized by several chromosomal abnormalities resulting in the formation of chimeric genes that play various roles in leukemogenesis. Translocations resulting in the ETV6-ABL1 fusion gene are rare in AML and other hematologic malignancies with only thirty-two previously reported cases in the literature, five of which were AML. FINDINGS: Herein, we report the case of a 73-year-old male with acute myeloid leukemia arising from MDS, negative for PDGFRA and PDGFRB, positive for bone marrow eosinophilia, rash, and marked fluid retention, which improved dramatically with imatinib therapy...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27468353/gastric-mucosa-associated-lymphoid-tissue-lymphoma-and-helicobacter-pylori-infection-a-review-of-current-diagnosis-and-management
#19
REVIEW
Qinglong Hu, Yizhuo Zhang, Xiaoyan Zhang, Kai Fu
Helicobacter pylori (H. pylori)-associated gastritis is one of the most common infectious diseases in the United States, China and worldwide. Gastric mucosa-associated tissue lymphoma (MALT lymphoma) is a rare mature B-cell neoplasm associated with H. pylori infection that is curable by antibiotics therapy alone. The pathological diagnosis of gastric MALT lymphoma can be reached by histological examination, immunohistochemical staining and B-cell clonality analysis. H. pylori eradication is the choice of therapy for early-stage gastric MALT lymphoma...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27453784/pediatric-chronic-myeloid-leukemia-with-inv-3-q21q26-2-and-t-lymphoblastic-transformation-a-case-report
#20
Margaret Lewen, Renee Gresh, Maria Queenan, Michele Paessler, Vinodh Pillai, Elizabeth Hexner, Dale Frank, Adam Bagg, Richard Aplenc, Emi Caywood, Gerald Wertheim
BACKGROUND: Chronic myeloid leukemia (CML) comprises ~3 % of pediatric leukemia. Although therapy with tyrosine kinase inhibitors (TKIs) is highly effective for CML, multiple factors have been identified as predictive of treatment failure. Chromosomal abnormalities involving the MECOM locus at 3q26 portend therapy resistant disease in adults, yet have never been described in pediatric patients and have not been associated with T lymphoblastic progression. CASE PRESENTATION: We present a case of an 11-year-old boy with CML possessing the unique combination of T lymphoblastic transformation and a subclone harboring inv(3)(q21q26...
2016: Biomarker Research
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