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https://www.readbyqxmd.com/read/28424716/growth-stimulatory-effects-and-genome-wide-transcriptional-changes-produced-by-protein-hydrolysates-in-maize-seedlings
#1
Chiara Santi, Anita Zamboni, Zeno Varanini, Tiziana Pandolfini
Protein hydrolysates are an emerging class of crop management products utilized for improving nutrient assimilation and mitigating crop stress. They generally consist of a mixture of peptides and free amino acids derived from the hydrolysis of plant or animal sources. The present work was aimed at studying the effects and the action mechanisms of a protein hydrolysate derived from animal residues on maize root growth and physiology in comparison with the effects induced by either free amino acids or inorganic N supply...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28423512/kinase-analysis-of-penile-squamous-cell-carcinoma-on-multiple-platforms-to-identify-potential-therapeutic-targets
#2
Eddy S Yang, Christopher D Willey, Amitkumar Mehta, Michael R Crowley, David K Crossman, Dongquan Chen, Joshua C Anderson, Gurudatta Naik, Deborah L Della Manna, Tiffiny S Cooper, Guru Sonpavde
Penile squamous cell carcinoma (PSCC) is an orphan malignancy with poorly understood biology and suboptimal systemic therapy. Given that kinases may be drivers and readily actionable, we performed comprehensive multiplatform analysis of kinases in PSCC tumor and normal tissue. Fresh frozen tumors were collected from 11 patients with PSCC. After macrodissection to demarcate tumor from normal tissue, the samples underwent multiplatform analysis of kinases. Next Generation Sequencing (NGS) of 517 kinase genes was performed using Agilent Kinome capture and run on the Illumina MiSeq at PE150bp...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418903/kinomic-profiling-identifies-focal-adhesion-kinase-1-as-a-therapeutic-target-in-advanced-clear-cell-renal-cell-carcinoma
#3
Arindam P Ghosh, Christopher D Willey, Joshua C Anderson, Karim Welaya, Dongquan Chen, Amitkumar Mehta, Pooja Ghatalia, Ankit Madan, Gurudatta Naik, Sunil Sudarshan, Guru Sonpavde
The introduction of targeted therapies has caused a paradigm shift in the treatment of metastatic clear cell (cc)-renal cell carcinoma (RCC). We hypothesized that determining differential kinase activity between primary and metastatic tumor sites may identify critical drivers of progression and relevant therapeutic targets in metastatic disease. Kinomic profiling was performed on primary tumor and metastatic tumor deposits utilizing a peptide substrate microarray to detect relative tyrosine phosphorylation activity...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415792/a-cd44-specific-peptide-rp-1-exhibits-capacities-of-assisting-diagnosis-and-predicting-prognosis-of-gastric-cancer
#4
Weiming Li, Huan Jia, Jichang Wang, Hao Guan, Yan Li, Dan Zhang, Yanan Tang, Thomas D Wang, Shaoying Lu
Early diagnosis and evaluation of prognosis are both crucial for preventing poor prognosis of patients with gastric cancer (GC), a leading cause of cancer-related deaths worldwide. Cluster of differentiation 44 (CD44), an indicator of cancer stem cells, can be specifically targeted by molecular probes and detected in tissues of GC in a large quantity. In current study we found that RP-1, a specific peptide binding to CD44 protein, exhibited the potentials of specific binding to CD44 high-expressing cancer cells both in vitro and in vivo, and the capacity of predicting prognosis of human GC in a microarray assay...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414692/neuronal-fibers-and-neurotransmitter-receptor-expression-in-the-human-endolymphatic-sac
#5
Martin Nue Møller, Svend Kirkeby, Jonas Vikeså, Finn Cilius Nielsen, Per Cayé-Thomasen
INTRODUCTION: Recent studies suggest that the human endolymphatic sac (ES) may have multiple functions, including an ion-transport capacity comparable to the kidney, an immunological capacity and a possible natriuretic capacity. Further, there have been speculations of a yet undefined role in intracranial pressure homeostasis. The anatomical location towards the sigmoid sinus would suggest a possible endo- and/or paracrine signaling. However, neuronal connections may also apply, but it remains very scarcely explored in the human ES...
April 14, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28401067/a-nuclease-from-streptococcus-mutans-facilitates-biofilm-dispersal-and-escape-from-killing-by-neutrophil-extracellular-traps
#6
Jia Liu, Luping Sun, Wei Liu, Lihong Guo, Zhaohui Liu, Xi Wei, Junqi Ling
Streptococcus mutans is the primary etiologic agent of dental caries and occasionally infective endocarditis, with the ability to form biofilms and disperse cells into distal sites to exacerbate and spread infection. In this study, we identified a nuclease (DeoC) as a S. mutans biofilm dispersal modulating factor through microarray analysis. In vitro assays revealed a dispersal defect of a deoC deletion mutant, and functional studies with purified protein were indicative of the biofilm dispersal activity of DeoC...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28381638/antibody-epitopes-identified-in-critical-regions-of-dengue-virus-nonstructural-1-protein-in-mouse-vaccination-and-natural-human-infections
#7
Tomer Hertz, P Robert Beatty, Zachary MacMillen, Sarah S Killingbeck, Chunling Wang, Eva Harris
Dengue is a global public health problem and is caused by four dengue virus (DENV) serotypes (DENV1-4). A major challenge in dengue vaccine development is that cross-reactive anti-DENV Abs can be protective or potentially increase disease via Ab-dependent enhancement. DENV nonstructural protein 1 (NS1) has long been considered a vaccine candidate as it avoids Ab-dependent enhancement. In this study, we evaluated survival to challenge in a lethal DENV vascular leak model in mice immunized with NS1 combined with aluminum and magnesium hydroxide, monophosphoryl lipid A + AddaVax, or Sigma adjuvant system+CpG DNA, compared with mice infected with a sublethal dose of DENV2 and mice immunized with OVA (negative control)...
April 5, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28378334/rnase-7-downregulates-th2-cytokine-production-by-activated-human-t-cells
#8
Verena Kopfnagel, Sylvia Wagenknecht, Lena Brand, Jana Zeitvogel, Jürgen Harder, Karsten Hofmann, Michael Kleine, Thomas Werfel
BACKGROUND: The antimicrobial peptide (AMP) RNase 7 is constitutively expressed in the epidermis of healthy human skin and has been found to be upregulated in chronic inflammatory skin diseases such as atopic dermatitis and psoriasis. Activated T-cells in lesional skin of patients with atopic dermatitis (AD) and psoriasis (PSO) might be directly exposed to RNase 7. In addition to their antimicrobial activity immunoregulatory functions have been published for several AMPs. In this study we investigated immunoregulatory effects of the antimicrobial peptide RNase 7 on activated T-cells...
April 4, 2017: Allergy
https://www.readbyqxmd.com/read/28355125/epitope-mapping-of-the-antibody-response-against-the-envelope-proteins-of-the-feline-foamy-virus
#9
Michael Mühle, Anne Bleiholder, Martin Löchelt, Joachim Denner
Foamy viruses (FV) are retroviruses that infect several species without pathological signs, but induce substantial antibody responses in the infected host. In the case of feline FV (FFV), antibodies against Gag, Bet, and Env have been used to indicate infection; however, it is unclear whether the response to specific epitopes correlates with immunity. Here, we investigated the epitope specificity of antibodies targeting the Env protein using peptide microarrays. Sera from naturally and experimentally FFV-infected cats and pumas and from rats immunized with FFV Env expression plasmids were analyzed...
March 29, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28351409/identification-of-a-novel-merozoite-surface-antigen-of-plasmodium-vivax-pvmsa180
#10
Fauzi Muh, Jin-Hee Han, Myat Htut Nyunt, Seong-Kyun Lee, Hye-Yoon Jeon, Kwon-Soo Ha, Won Sun Park, Seok-Ho Hong, Md Atique Ahmed, Sunghun Na, Eizo Takashima, Takafumi Tsuboi, Eun-Taek Han
BACKGROUND: Although a number of Plasmodium vivax proteins have been identified, few have been investigated as potential vaccine candidates. This study characterized the Plasmodium vivax merozoite surface antigen 180 (PvMSA180, PVX_094920), a novel P. vivax antigenic protein. METHODS: The target gene was amplified as four overlapping domains (D1, D2, D3 and D4) to enable expression of the recombinant protein using cell-free and bacterial expression systems. The recombinant PvMSA180 proteins were used in protein microarrays to evaluate the humoral immune response of 72 vivax-infected patients and 24 vivax-naïve individuals...
March 28, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28345783/natural-tolerance-development-in-cow-s-milk-allergic-children-ige-and-igg4-epitope-binding
#11
Jean Christoph Caubet, Jing Lin, Birgit Ahrens, Gustavo Gimenez, Luda Bardina, Bodo Niggemann, Hugh A Sampson, Kirsten Beyer
BACKGROUND: Although most of cow's milk (CM) allergic children will outgrow their allergy, the pathomechanism of the natural development of tolerance remains poorly understood. It has been suggested that the balance between milk specific IgE and IgG4 plays a major role. OBJECTIVE: We aimed to investigate differences in IgE and IgG4 antibody binding to cow's milk (CM) epitopes between patients with persistent CM allergy (CMA) and those that naturally became tolerant...
March 27, 2017: Allergy
https://www.readbyqxmd.com/read/28315220/ige-epitope-mapping-using-peptide-microarray-immunoassay
#12
Jing Lin, Hugh A Sampson
IgE epitope mapping has the potential to become an additional tool for food allergy diagnosis/prognosis and to lead to a better understanding of the pathogenesis and tolerance induction of food allergy. Due to its ability to screen thousands of targets in parallel using small volumes of sample, peptide microarray has greatly facilitated large-scale IgE epitope mapping. In the past 10 years, we have developed and optimized a reliable and sensitive peptide microarray immunoassay, which has been successfully applied for IgE epitope mapping of many food allergens in our lab...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28299490/molecular-effects-of-fractional-ablative-erbium-yag-laser-treatment-with-multiple-stacked-pulses-on-standardized-human-three-dimensional-organotypic-skin-models
#13
Laurenz Schmitt, P M Amann, Y Marquardt, R Heise, K Czaja, P A Gerber, T Steiner, F Hölzle, Jens Malte Baron
The molecular changes in gene expression following ablative laser treatment of skin lesions, such as atrophic scars and UV-damaged skin, are not completely understood. A standardized in vitro model of human skin, to study the effects of laser treatment on human skin, has been recently developed. Therefore, the aim of the investigation was to examine morphological and molecular changes caused by fractional ablative erbium:YAG laser treatment on an in vitro full-thickness 3D standardized organotypic model of human skin...
March 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28295370/the-human-endolymphatic-sac-expresses-natriuretic-peptides
#14
Martin Nue Møller, Svend Kirkeby, Jonas Vikeså, Finn Cilius Nielsen, Per Cayé-Thomasen
OBJECTIVES/HYPOTHESIS: The function of the human endolymphatic sac (ES) has been enigmatic for decades. Hypotheses include controlling endolymphatic fluid homeostasis and inner ear immunological defense. Additionally, several studies indicate a possible endocrine capacity and a yet undefined role in intracranial pressure homeostasis. However, no direct evidence of such capacity exists. This study aims to explore and identify the hypothesized endocrine capacity of the human ES. STUDY DESIGN: DNA microarrays and immunohistochemistry were used for analyses of fresh human ES tissue samples...
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28293301/histone-peptide-microarray-screen-of-chromo-and-tudor-domains-defines-new-histone-lysine-methylation-interactions
#15
Erin K Shanle, Stephen A Shinsky, Joseph B Bridgers, Narkhyun Bae, Cari Sagum, Krzysztof Krajewski, Scott B Rothbart, Mark T Bedford, Brian D Strahl
BACKGROUND: Histone posttranslational modifications (PTMs) function to regulate chromatin structure and function in part through the recruitment of effector proteins that harbor specialized "reader" domains. Despite efforts to elucidate reader domain-PTM interactions, the influence of neighboring PTMs and the target specificity of many reader domains is still unclear. The aim of this study was to use a high-throughput histone peptide microarray platform to interrogate 83 known and putative histone reader domains from the chromo and Tudor domain families to identify their interactions and characterize the influence of neighboring PTMs on these interactions...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28259916/notch-signaling-is-significantly-suppressed-in-basal-cell-carcinomas-and-activation-induces-basal-cell-carcinoma-cell-apoptosis
#16
Feng-Tao Shi, Mei Yu, David Zloty, Robert H Bell, Eddy Wang, Noushin Akhoundsadegh, Gigi Leung, Anne Haegert, Nicholas Carr, Jerry Shapiro, Kevin J McElwee
A subset of basal cell carcinomas (BCCs) are directly derived from hair follicles (HFs). In some respects, HFs can be defined as 'ordered' skin appendage growths, while BCCs can be regarded as 'disordered' skin appendage growths. The aim of the present study was to examine HFs and BCCs to define the expression of common and unique signaling pathways in each skin appendage. Human nodular BCCs, along with HFs and non‑follicular skin epithelium from normal individuals, were examined using microarrays, qPCR, and immunohistochemistry...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28238255/linear-multiepitope-glyco-peptides-for-type-specific-serology-of-herpes-simplex-virus-hsv-infections
#17
Christian Risinger, Kasper K Sørensen, Knud J Jensen, Sigvard Olofsson, Tomas Bergström, Ola Blixt
Detection of type-specific antibodies is an important and essential part of accurate diagnosis, even in silent carriers of herpes simplex virus (HSV)-1 (oral) and HSV-2 (genital) infections. Serologic assays that identify HSV-1 and HSV-2 type-specific antibodies have been commercially available for more than a decade but often face problems related to cross-reactivity and similar issues. Attempts to identify type-specific peptide epitopes for use in serology for both HSV-1 and HSV-2 have been limited. We recently demonstrated epitope mapping of envelope glycoprotein G2 and identified a type-specific glycopeptide epitope that broadly recognized HSV-2 infected individuals...
March 6, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28212615/molecular-pathways-underlying-inhibitory-effect-of-antimicrobial-peptide-nal-p-113-on-bacteria-biofilms-formation-of-porphyromonas-gingivalis-w83-by-dna-microarray
#18
Hong-Yan Wang, Li Lin, Li-Si Tan, Hui-Yuan Yu, Jya-Wei Cheng, Ya-Ping Pan
BACKGROUND: Wound-related infection remains a major challenge for health professionals. One disadvantage in conventional antibiotics is their inability to penetrate biofilms, the main protective strategy for bacteria to evade irradiation. Previously, we have shown that synthetic antimicrobial peptides could inhibit bacterial biofilms formation. RESULTS: In this study, we first delineated how Nal-P-113, a novel antimicrobial peptide, exerted its inhibitory effects on Porphyromonas gingivalis W83 biofilms formation at a low concentration...
February 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28192214/immune-recognition-surface-construction-of-mycobacterium-tuberculosis-epitope-specific-antibody-responses-in-tuberculosis-patients-identified-by-peptide-microarrays
#19
REVIEW
Davide Valentini, Martin Rao, Giovanni Ferrara, Marc Perkins, Ernest Dodoo, Alimuddin Zumla, Markus Maeurer
BACKGROUND: Understanding of humoral immune responses in tuberculosis (TB) is gaining interest, since B-cells and antibodies may be important in diagnosis as well as protective immune responses. High-content peptide microarrays (HCPM) are highly precise and reliable for gauging specific antibody responses to pathogens, as well as autoantigens. METHODS: An HCPM comprising epitopes spanning 154 proteins of Mycobacterium tuberculosis was used to gauge specific IgG antibody responses in sera of TB patients from Africa and South America...
February 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28191734/integrative-proteomics-genomics-and-translational-immunology-approaches-reveal-mutated-forms-of-proteolipid-protein-1-plp1-and-mutant-specific-immune-response-in-multiple-sclerosis
#20
Veneta Qendro, Grace A Bugos, Debbie H Lundgren, John Glynn, May H Han, David K Han
In order to gain mechanistic insights into multiple sclerosis (MS) pathogenesis, we utilized a multi-dimensional approach to test the hypothesis that mutations in myelin proteins lead to immune activation and central nervous system autoimmunity in MS. Mass spectrometry-based proteomic analysis of human MS brain lesions revealed seven unique mutations of PLP1; a key myelin protein that is known to be destroyed in MS. Surprisingly, in-depth genomic analysis of two MS patients at the genomic DNA and mRNA confirmed mutated PLP1 in RNA, but not in the genomic DNA...
February 12, 2017: Proteomics
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