@article{SchloerHolzloehnerListeketal.2018, author = {Schl{\"o}r, Anja and Holzl{\"o}hner, Pamela and Listek, Martin and Grieß, Cindy and Butze, Monique and Micheel, Burkhard and Hentschel, Christian and Sowa, Mandy and Roggenbuck, Dirk and Schierack, Peter and F{\"u}ner, Jonas and Schliebs, Erik and Goihl, Alexander and Reinhold, Dirk and Hanack, Katja}, title = {Generation and validation of murine monoclonal and camelid recombinant single domain antibodies specific for human pancreatic glycoprotein 2}, series = {New biotechnology}, volume = {45}, journal = {New biotechnology}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1871-6784}, doi = {10.1016/j.nbt.2018.03.006}, pages = {60 -- 68}, year = {2018}, abstract = {Pancreatic secretory zymogen-granule membrane glycoprotein 2 (GP2) has been identified as a major autoantigenic target in Crohn's disease patients. It was reported recently that a long (GP2a) and a short (GP2b) isoform of GP2 exist and that in the outcome of inflammatory bowel diseases (IBD) GP2-specific autoantibodies probably appear as new serological markers for diagnosis and therapeutic monitoring. To investigate this further and in order to establish diagnostic tools for the discrimination of both GP2 isoforms, a set of different murine monoclonal and camelid recombinant single domain antibodies (camelid VHH) was generated and validated in various enzyme-linked immunosorbent assay (ELISA) formats, immunofluorescence on transgenic cell lines and immunohistochemistry on monkey pancreas tissue sections. Out of six binders identified, one was validated as highly specific for GP2a. This murine monoclonal antibody (mAb) was used as capture antibody in construction of a sandwich ELISA for the detection of GP2a. Camelid VHHs or a second murine mAb served as detection antibodies in this system. All antibodies were also able to stain GP2a or GP2b on transgenic cell lines as well as on pancreatic tissue in immunohistochemistry. The KD values measured for the camelid VHHs were between 7 nM and 23pM. This set of specific binders will enable the development of suitable diagnostic tools for GP2-related studies in IBD.}, language = {en} } @misc{HanackSchloerHolzloehneretal.2016, author = {Hanack, Katja and Schloer, Anja and Holzloehner, Pamela and Listek, Martin and Bauer, Cindy and Butze, Monique and Micheel, Burkhard and Hentschel, Christian and Sowa, Mandy and Roggenbuck, Dirk and Schierack, Peter and Fuener, Jonas and Schliebs, Erik and Goihl, Alexander and Reinhold, Dirk}, title = {Camelid nanobodies specific to human pancreatic glycoprotein 2}, series = {The journal of immunology}, volume = {196}, journal = {The journal of immunology}, publisher = {American Assoc. of Immunologists}, address = {Bethesda}, issn = {0022-1767}, pages = {313 -- 328}, year = {2016}, abstract = {Pancreatic secretory zymogen-granule membrane glycoprotein 2 (GP2) has been identified to be a major autoantigenic target in Crohn's disease patients. It was discussed recently that a long and a short isoform of GP2 exists whereas the short isoform is often detected by GP2-specific autoantibodies. In the outcome of inflammatory bowel diseases, these GP2-specific autoantibodies are discussed as new serological markers for diagnosis and therapeutic monitoring. To investigate this further, camelid nanobodies were generated by phage display and selected against the short isoform of GP2 in order to isolate specific tools for the discrimination of both isoforms. Nanobodies are single domain antibodies derived from camelid heavy chain only antibodies and characterized by a high stability and solubility. The selected candidates were expressed, purified and validated regarding their binding properties in different enzyme-linked immunosorbent assays formats, immunofluorescence, immunohistochemistry and surface plasmon resonance spectroscopy. Four different nanobodies could be selected whereof three recognize the short isoform of GP2 very specifically and one nanobody showed a high binding capacity for both isoforms. The KD values measured for all nanobodies were between 1.3 nM and 2.3 pM indicating highly specific binders suitable for the application as diagnostic tool in inflammatory bowel disease.}, language = {en} } @article{RoggenbuckGoihlHanacketal.2017, author = {Roggenbuck, Dirk and Goihl, Alexander and Hanack, Katja and Holzloehner, Pamela and Hentschel, Christian and Veiczi, Miklos and Schierack, Peter and Reinhold, Dirk and Schulz, Hans-Ulrich}, title = {Serological diagnosis and prognosis of severe acute pancreatitis by analysis of serum glycoprotein 2}, series = {Clinical chemistry and laboratory medicine : journal of the Forum of the European Societies of Clinical Chemistry - the European Branch of the International Federation of Clinical Chemistry and Laboratory Medicine}, volume = {55}, journal = {Clinical chemistry and laboratory medicine : journal of the Forum of the European Societies of Clinical Chemistry - the European Branch of the International Federation of Clinical Chemistry and Laboratory Medicine}, publisher = {De Gruyter}, address = {Berlin}, issn = {1434-6621}, doi = {10.1515/cclm-2016-0797}, pages = {854 -- 864}, year = {2017}, abstract = {To better understand emerging adults' perceptions of family interactions and value transmission to the next generation, we examined Hmong American emerging adults' reflections on their parents' parenting. Participants discussed what parenting practices they would do differently and others they hoped to emulate with their future adolescent children. Thirty Hmong American emerging adults (18-25 years; M = 21.2 years; 50\% female) participated in interviews that focused retrospectively on the parent-adolescent relationship. Results revealed that emerging adults wanted to parent differently in three ways: less pressure about education, fewer restrictions, and more open communication. Emerging adults imagined being a similar parent in four ways: promoting education, promoting life values, giving guidance, and offering love and support. The findings highlight parenting practices that Hmong American emerging adults plan on transmitting (and not transmitting) to their own children, offering a glimpse into the type of parents the emerging adults may become.}, language = {en} }