Name: sampling human indigenous saliva peptidome using a lollipop-like ultrafiltration probe: simplify and enhance peptide detection for clinical mass spectrometry
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Description: Watch this Scientific Journal Video about Sampling Human Indigenous Saliva Peptidome Using a Lollipop-Like Ultrafiltration Probe: Simplify and Enhance Peptide Detection for Clinical Mass Spectrometry

Работа выполнена при поддержке Национального института здравоохранения грантов (R01-AI067395-01, R21-R022754-01 и R21-I58002-01). Мы благодарим С. Нимейер за критическое чтение рукописи.

1. Создание датчиков LLUF <ol><li> Полиэфирсульфона мембраны (2 см 2) были закрыты с треугольником полипропилена манипуляторы (Университет Калифорнии, Сан-Диего) склеиванием мембран с эпоксидной на границах весла. Отрицательно заряженные полиэфирсульфона мембраны с молекулярной масс?...

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	<li>Denny, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+proteomes+of+human+parotid+and+ubmandibular/sublingual+gland+salivas+collected+as+the+ductal+secretions.">The proteomes of human parotid and ubmandibular/sublingual gland salivas collected as the ductal secretions.</a> J. Proteome Res. 7, 1994-2006 (2008).</li><li>Hu, S., Loo, J. A., Wong, D. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Human+saliva+proteome+analysis.">Human saliva proteome analysis.</a> Ann. N.Y. Acad. Sci. 1098, 323-329 (2007).</li><li>Ng, D. P., Koh, D., Choo, S. G., Ng, V., Fu, Q. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+storage+conditions+on+the+extraction+of+PCR-quality+genomic+DNA+from+saliva.">Effect of storage conditions on the extraction of PCR-quality genomic DNA from saliva.</a> Clin. Chim. Acta. 343, 191-194 (2004).</li><li>Wade, S. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+oral-diffusion-sink+device+for+extended+sampling+of+multiple+steroid+hormones+from+saliva.">An oral-diffusion-sink device for extended sampling of multiple steroid hormones from saliva.</a> Clin. Chem. 38, 1878-1882 (1992).</li><li>Hu, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Large-scale+identification+of+proteins+in+human+salivary+proteome+by+liquid+chromatography/mass+spectrometry+and+two-dimensional+gel+electrophoresis-mass+spectrometry.">Large-scale identification of proteins in human salivary proteome by liquid chromatography/mass spectrometry and two-dimensional gel electrophoresis-mass spectrometry.</a> Proteomics. 5, 1714-1728 (2005).</li><li>Huang, C. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Comparative+proteomic+analysis+of+human+whole+saliva.">Comparative proteomic analysis of human whole saliva.</a> Arch. Oral Biol. 49, 951-962 (2004).</li><li>Guerrier, L., Lomas, L., Boschetti, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simplified+monobuffer+multidimensional+chromatography+for+high-throughput+proteome+fractionation.">A simplified monobuffer multidimensional chromatography for high-throughput proteome fractionation.</a> J Chromatogr. A. 1073, 25-33 (2005).</li><li>Huang, C. M., Wang, C. C., Kawai, M., Barnes, S., Elmets, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surfactant+sodium+lauryl+sulfate+enhances+skin+vaccination:+molecular+characterization+via+a+novel+technique+using+ultrafiltration+capillaries+and+mass+spectrometric+proteomics.">Surfactant sodium lauryl sulfate enhances skin vaccination: molecular characterization via a novel technique using ultrafiltration capillaries and mass spectrometric proteomics.</a> Mol. Cell Proteomics. 5, 523-532 (2006).</li><li>Huang, C. M., Wang, C. C., Kawai, M., Barnes, S., Elmets, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+protein+sampling+using+capillary+ultrafiltration+semi-permeable+hollow+fiber+and+protein+identification+via+mass+spectrometry-based+proteomics.">In vivo protein sampling using capillary ultrafiltration semi-permeable hollow fiber and protein identification via mass spectrometry-based proteomics.</a> J. Chromatogr. A. 1109, 144-151 (2006).</li><li>Huang, C. M., Wang, C. C., Barnes, S., Elmets, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+detection+of+secreted+proteins+from+wounded+skin+using+capillary+ultrafiltration+probes+and+mass+spectrometric+proteomics.">In vivo detection of secreted proteins from wounded skin using capillary ultrafiltration probes and mass spectrometric proteomics.</a> Proteomics. 6, 5805-5814 (2006).</li><li>Huang, C. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mass+spectrometric+proteomics+profiles+of+in+vivo+tumor+secretomes:+capillary+ultrafiltration+sampling+of+regressive+tumor+masses.">Mass spectrometric proteomics profiles of in vivo tumor secretomes: capillary ultrafiltration sampling of regressive tumor masses.</a> Proteomics. 6, 6107-6116 (2006).</li><li>Ahmed, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+approach+to+remove+albumin+for+the+proteomic+analysis+of+low+abundance+biomarkers+in+human+serum.">An approach to remove albumin for the proteomic analysis of low abundance biomarkers in human serum.</a> Proteomics. 3, 1980-1987 (2006).</li><li>Michishige, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+saliva+collection+method+on+the+concentration+of+protein+components+in+saliva.">Effect of saliva collection method on the concentration of protein components in saliva.</a> J. Med. Invest. 53, 140-146 (2006).</li><li>Kruger, C., Breunig, U., Biskupek-Sigwart, J., Dorr, H. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Problems+with+salivary+17-hydroxyprogesterone+determinations+using+the+Salivette+device.">Problems with salivary 17-hydroxyprogesterone determinations using the Salivette device.</a> Eur. J. Clin. Chem. Clin. Biochem. 34, 926-929 (1996).</li><li>Luque-Garcia, J. L., Neubert, T. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sample+preparation+for+serum/plasma+profiling+and+biomarker+identification+by+mass+spectrometry.">Sample preparation for serum/plasma profiling and biomarker identification by mass spectrometry.</a> J. Chromatogr. A. 1153, 259-276 (2007).</li><li>Ramstrom, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Depletion+of+high-abundant+proteins+in+body+fluids+prior+to+liquid+chromatography+fourier+transform+ion+cyclotron+resonance+mass+spectrometry.">Depletion of high-abundant proteins in body fluids prior to liquid chromatography fourier transform ion cyclotron resonance mass spectrometry.</a> J. Proteome. Res. 4, 410-416 (2005).</li><li>Messana, I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Characterization+of+the+human+salivary+basic+proline-rich+protein+complex+by+a+proteomic+approach.">Characterization of the human salivary basic proline-rich protein complex by a proteomic approach.</a> J. Proteome. Res. 3, 792-800 (2004).</li><li>Li, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Possible+release+of+an+ArgGlyArgProGln+pentapeptide+with+innate+immunity+properties+from+acidic+proline-rich+proteins+by+proteolytic+activity+in+commensal+streptococcus+and+actinomyces+species.">Possible release of an ArgGlyArgProGln pentapeptide with innate immunity properties from acidic proline-rich proteins by proteolytic activity in commensal streptococcus and actinomyces species.</a> Infect. Immun. 68, 5425-5429 (2000).</li><li>Davtyan, T. K., Manukyan, H. A., Mkrtchyan, N. R., Avetisyan, S. A., Galoyan, A. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hypothalamic+proline-rich+polypeptide+is+a+regulator+of+oxidative+burst+in+human+neutrophils+and+monocytes.">Hypothalamic proline-rich polypeptide is a regulator of oxidative burst in human neutrophils and monocytes.</a> Neuroimmunomodulation. 12, 270-284 (2005).</li><li>Jonsson, A. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gln-Gly+cleavage:+correlation+between+collision-induced+dissociation+and+biological+degradation.">Gln-Gly cleavage: correlation between collision-induced dissociation and biological degradation.</a> J. Am. Soc. Mass Spectrom. 12, 337-342 (2001).</li><li>Gibbons, R. J., Hay, D. I., Schlesinger, D. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Delineation+of+a+segment+of+adsorbed+salivary+acidic+proline-rich+proteins+which+promotes+adhesion+of+Streptococcus+gordonii+to+apatitic+surfaces.">Delineation of a segment of adsorbed salivary acidic proline-rich proteins which promotes adhesion of Streptococcus gordonii to apatitic surfaces.</a> Infect Immun. 59, 2948-2954 (1991).</li><li>Li, T., Johansson, I., Hay, D. I., Stromberg, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Strains+of+Actinomyces+naeslundii+and+Actinomyces+viscosus+exhibit+structurally+variant+fimbrial+subunit+proteins+and+bind+to+different+peptide+motifs+in+salivary+proteins.">Strains of Actinomyces naeslundii and Actinomyces viscosus exhibit structurally variant fimbrial subunit proteins and bind to different peptide motifs in salivary proteins.</a> Infect Immun. 67, 2053-2059 (1999).</li><li>Hardt, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Toward+defining+the+human+parotid+gland+salivary+proteome+and+peptidome:+identification+and+characterization+using+2D+SDS-PAGE,+ultrafiltration,+HPLC,+and+mass+spectrometry.">Toward defining the human parotid gland salivary proteome and peptidome: identification and characterization using 2D SDS-PAGE, ultrafiltration, HPLC, and mass spectrometry.</a> Biochemistry. 44, 2885-2899 (2005).</li><li>Wilmarth, P. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two-dimensional+liquid+chromatography+study+of+the+human+whole+saliva+proteome.">Two-dimensional liquid chromatography study of the human whole saliva proteome.</a> J. Proteome Res. 3, 1017-1023 (2004).</li><li>Saitoh, E., Isemura, S., Sanada, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Complete+amino+acid+sequence+of+a+basic+proline-rich+peptide,+P-D,+from+human+parotid+saliva.">Complete amino acid sequence of a basic proline-rich peptide, P-D, from human parotid saliva.</a> J. Biochem. 93, 495-502 (1983).</li><li>Slomiany, B. L., Piotrowski, J., Czajkowski, A., Shovlin, F. E., Slomiany, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Differential+expression+of+salivary+mucin+bacterial+aggregating+activity+with+caries+status.">Differential expression of salivary mucin bacterial aggregating activity with caries status.</a> Int. J. Biochem. 25, 935-940 (1993).</li><li>Juarez, Z. E., Stinson, M. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+extracellular+protease+of+Streptococcus+gordonii+hydrolyzes+type+IV+collagen+and+collagen+analogues.">An extracellular protease of Streptococcus gordonii hydrolyzes type IV collagen and collagen analogues.</a> Infect Immun. 67, 271-278 (1999).</li><li>Lo, C. S., Hughes, C. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+and+characterization+of+a+protease+from+Streptococcus+oralis+C104.">Identification and characterization of a protease from Streptococcus oralis C104.</a> Oral Microbiol. Immunol. 11, 181-187 (1996).</li><li>Harrington, D. J., Russell, R. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+and+characterisation+of+two+extracellular+proteases+of+Streptococcus+mutans.">Identification and characterisation of two extracellular proteases of Streptococcus mutans.</a> FEMS Microbiol. Lett. 121, 237-241 (1994).</li><li>Huang, C. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+secretome+sampling+technology+for+proteomics.">In vivo secretome sampling technology for proteomics.</a> Proteomics Clin. Appl. 1, 953-962 (2007).</li><li>Skepo, M., Linse, P., Arnebrant, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Coarse-grained+modeling+of+proline+rich+protein+1+(PRP-1)+in+bulk+solution+and+adsorbed+to+a+negatively+charged+surface.">Coarse-grained modeling of proline rich protein 1 (PRP-1) in bulk solution and adsorbed to a negatively charged surface.</a> J. Phys. Chem. B. 110, 12141-12148 (2006).</li><li>Losic, D., Rosengarten, G., Mitchell, J. G., Voelcker, N. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pore+architecture+of+diatom+frustules:+potential+nanostructured+membranes+for+molecular+and+particle+separations.">Pore architecture of diatom frustules: potential nanostructured membranes for molecular and particle separations.</a> J. Nanosci. Nanotechnol. 6, 982-989 (2006).</li><li>Linhares, M. C., Kissinger, P. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pharmacokinetic+monitoring+in+subcutaneous+tissue+using+in+vivo+capillary+ultrafiltration+probes.">Pharmacokinetic monitoring in subcutaneous tissue using in vivo capillary ultrafiltration probes.</a> Pharm Res. 10, 598-602 (1993).</li><li>Li, W., Hendrickson, C. L., Emmett, M. R., Marshall, A. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+intact+proteins+in+mixtures+by+alternated+capillary+liquid+chromatography+electrospray+ionization+and+LC+ESI+infrared+multiphoton+dissociation+Fourier+transform+ion+cyclotron+resonance+mass+spectrometry.">Identification of intact proteins in mixtures by alternated capillary liquid chromatography electrospray ionization and LC ESI infrared multiphoton dissociation Fourier transform ion cyclotron resonance mass spectrometry.</a> Anal. Chem. 71, 4397-4402 (1999).</li><li>Whitelegge, J. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Protein-Sequence+Polymorphisms+and+Post-translational+Modifications+in+Proteins+from+Human+Saliva+using+Top-Down+Fourier-transform+Ion+Cyclotron+Resonance+Mass+Spectrometry.">Protein-Sequence Polymorphisms and Post-translational Modifications in Proteins from Human Saliva using Top-Down Fourier-transform Ion Cyclotron Resonance Mass Spectrometry.</a> Int. J. Mass Spectrom. 268, 190-197 (2007).</li><li>Castro, P., Tovar, J. A., Jaramillo, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adhesion+of+Streptococcus+mutans+to+salivary+proteins+in+caries-free+and+caries-susceptible+individuals.">Adhesion of Streptococcus mutans to salivary proteins in caries-free and caries-susceptible individuals.</a> Acta Odontol. Latinoam. 19, 59-66 (2006).</li><li>Challacombe, S. J., Sweet, S. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Oral+mucosal+immunity+and+HIV+infection:+current+status.">Oral mucosal immunity and HIV infection: current status.</a> Oral Dis. 8, 55-62 (2002).</li><li>Jensen, J. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Salivary+acidic+proline-rich+proteins+in+rheumatoid+arthritis.">Salivary acidic proline-rich proteins in rheumatoid arthritis.</a> Ann. N.Y. Acad. Sci. 842, 209-211 (1998).</li></ol>

Мы обнаружили, что многие пептидные фрагменты существуют в человеческой слюне непереваренной. Эти пептидные фрагменты, являются производными от различных форм пролин-богатых белков, актина, альфа-амилазы, альфа-1 глобина, бета-глобина, histain 1, кератин 1, муцина 7 полимерных рецептора имму...

<table border="1"><tbody><tr><td> Название реагента </td><td> Компания </td><td> Номер в каталоге </td><td> Комментарии </td></tr><tr><td> Полиэфирсульфон мембран </td><td> Pall Corporation </td><td></td><td> 30 кДа MWCO </td></tr><tr><td> Тефлоновые трубки фторированных пропилена этилена </td><td> Upchurch Научные </td><td></td><td></td></tr><tr><td> Синий декстрана </td><td> Сигма </td><td></td><td></td></tr><tr><td> Nano LC системы </td><td> Eksigent </td><td></td><td></td></tr><tr><td> C18 колонка ловушка </td><td> Agilent </td><td> 5065-9913 </td><td></td></tr><tr><td> КТЛ линейной ионной ловушки масс-спектрометра </td><td> Thermo Fisher </td><td></td><td></td></tr><tr><td> Волшебник 2 </td><td> Sage-N исследовRCH </td><td></td><td></td></tr><tr><td> Ацетонитрил, 0,1% муравьиной кислоты </td><td> JT Baker </td><td> 9832-03 </td><td> LC / MS класс </td></tr><tr><td> Вода 0,1% муравьиной кислоты </td><td> JT Baker </td><td> 9834-03 </td><td> LC / MS класс </td></tr></tbody></table>

sampling human indigenous saliva peptidome using a lollipop-like ultrafiltration probe: simplify and enhance peptide detection for clinical mass spectrometry

Although human saliva proteome and peptidome have been revealed 1-2 they were majorly identified from tryptic digests of saliva proteins. Identification of indigenous peptidome of human saliva without prior digestion with exogenous enzymes becomes imperative, since native peptides in human saliva provide potential values for diagnosing disease, predicting disease progression, and monitoring therapeutic efficacy. Appropriate sampling is a critical step for enhancement of identification of human indigenous saliva peptidome. Traditional methods of sampling human saliva involving centrifugation to remove debris 3-4 may be too time-consuming to be applicable for clinical use. Furthermore, debris removal by centrifugation may be unable to clean most of the infected pathogens and remove the high abundance proteins that often hinder the identification of low abundance peptidome.
Conventional proteomic approaches that primarily utilize two-dimensional gel electrophoresis (2-DE) gels in conjugation with in-gel digestion are capable of identifying many saliva proteins 5-6. However, this approach is generally not sufficiently sensitive to detect low abundance peptides/proteins. Liquid chromatography-Mass spectrometry (LC-MS) based proteomics is an alternative that can identify proteins without prior 2-DE separation. Although this approach provides higher sensitivity, it generally needs prior sample pre-fractionation 7 and pre-digestion with trypsin, which makes it difficult for clinical use. 
To circumvent the hindrance in mass spectrometry due to sample preparation, we have developed a technique called capillary ultrafiltration (CUF) probes 8-11. Data from our laboratory demonstrated that the CUF probes are capable of capturing proteins in vivo from various microenvironments in animals in a dynamic and minimally invasive manner 8-11. No centrifugation is needed since a negative pressure is created by simply syringe withdrawing during sample collection. The CUF probes combined with LC-MS have successfully identified tryptic-digested proteins 8-11. In this study, we upgraded the ultrafiltration sampling technique by creating a lollipop-like ultrafiltration (LLUF) probe that can easily fit in the human oral cavity. The direct analysis by LC-MS without trypsin digestion showed that human saliva indigenously contains many peptide fragments derived from various proteins. Sampling saliva with LLUF probes avoided centrifugation but effectively removed many larger and high abundance proteins. Our mass spectrometric results illustrated that many low abundance peptides became detectable after filtering out larger proteins with LLUF probes. Detection of low abundance saliva peptides was independent of multiple-step sample separation with chromatography. For clinical application, the LLUF probes incorporated with LC-MS could potentially be used in the future to monitor disease progression from saliva.

Watch this Scientific Journal Video about Sampling Human Indigenous Saliva Peptidome Using a Lollipop-Like Ultrafiltration Probe: Simplify and Enhance Peptide Detection for Clinical Mass Spectrometry 

Sampling Human Indigenous Saliva Peptidome Using a Lollipop-Like Ultrafiltration Probe: Simplify and Enhance Peptide Detection for Clinical Mass Spectrometry

Учитывая, слюна выборки для будущего клинического применения, как леденец на палочке, ультрафильтрации (LLUF) зонда было сфабриковано, чтобы уместиться в ротовой полости человека. Прямой анализ слюны на непереваренные NanoLC-КТЛ масс-спектрометрии продемонстрировали способность датчиков LLUF для удаления крупных белков и белков высокой численности и сделать низкими обильные пептиды более обнаружить.

Выборка прав коренных Peptidome Слюна Использование Lollipop, как ультрафильтрация Probe: упростить и улучшить пептида обнаружения клинических масс-спектрометрии

Although human saliva proteome and peptidome have been revealed 1-2 they were majorly identified from tryptic digests of saliva proteins. Identification ...

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Quantitative Mass Spectrometric Profiling of Cancer-cell Proteomes Derived From Liquid and Solid Tumors

Количественный масс-спектрометрический Профилирование раковых клеток протеомов, полученные из жидких и твердых опухолей

In-depth analyses of cancer cell proteomes are needed to elucidate oncogenic pathomechanisms, as well as to identify potential drug targets and diagnostic ...

Pre-clinical Orthotopic Murine Model of Human Prostate Cancer

Доклинические Ортотопическая мышиной модели рака простаты человека

To study the multifaceted biology of prostate cancer, pre-clinical in vivo models offer a range of options to uncover critical biological information ...

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

Подробный протокол потоотделения мониторинга с использованием нового, Малый, беспроводное устройство

Perspiration monitoring can be utilized for the detection of certain diseases, such as thermoregulation and mental disorders, particularly when the ...

Absolute Quantification of A&#946;1-42 in CSF Using a Mass Spectrometric Reference Measurement Procedure

Absolute Quantification of AÃƒÆ’Ã…Â½Ãƒâ€šÃ‚Â²1-42 in CSF Using a Mass Spectrometric Reference Measurement Procedure

Абсолютный Количественное A &amp; beta;<sub&gt; 1-42</sub&gt; В спинномозговой жидкости С помощью масс-спектрометрического Reference Процедура измерения

Alzheimer's disease (AD) is the most common neurodegenerative disease among the elderly and accounts for 60-80% of all cases of dementia. Currently, the ...

A Novel Clinical Grade Isolation Method for Human Kidney Perivascular Stromal Cells

Роман клинических класс изоляции метод человеческая почка периваскулярной стромальные клетки

Mesenchymal Stromal Cells (MSCs) are tissue homeostatic and immune modulatory cells that have shown beneficial effects in kidney diseases and ...

In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

In Vitro и In Vivo обнаружения Mitophagy в клетки человека и C. Elegans, мышей

Mitochondria are the powerhouses of cells and produce cellular energy in the form of ATP. Mitochondrial dysfunction contributes to biological aging and a ...

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model

Хирургической подготовки для имплантации кортикальное микроэлектродные массивов с использованием модели формальдегида Исправлена человеческий труп

This protocol describes a procedure to assist surgeons in training for the implantation of microelectrode arrays into the neocortex of the human brain. ...