Search results for: ASK1(Ab-966) Antibody
#34293822 2021/07/22 To Up
The signal transducer CD24 suppresses the germ cell program and promotes an ectodermal rather than mesodermal cell fate in embryonal carcinomas.Testicular germ cell tumors (GCTs) are stratified into seminomas and non-seminomas. Seminomas share many histological and molecular features with primordial germ cells, whereas the non-seminoma stem cell population - embryonal carcinoma (EC) - is pluripotent and thus able to differentiate into cells of all three germ layers (teratomas). Furthermore, ECs are capable of differentiating into extra-embryonic lineages (yolk-sac tumors, choriocarcinomas). In this study, we deciphered the molecular and (epi)genetic mechanisms regulating expression of CD24, a highly glycosylated signaling molecule upregulated in many cancers. CD24 is overexpressed in ECs compared to other GCT entities and can be associated with an undifferentiated pluripotent cell fate. We demonstrate that CD24 can be transactivated by the pluripotency factor SOX2, which binds in proximity to the CD24 promoter. In GCTs, CD24 expression is controlled by epigenetic mechanisms, i.e. histone acetylation, since CD24 can be induced by the application histone deacetylase inhibitors. Vice versa, CD24 expression is downregulated upon inhibition of histone methyltransferases, E3-ubiquitin ligases or bromodomain (BRD) proteins. Additionally, three-dimensional (3D) co-cultivation of EC cells with microenvironmental cells, such as fibroblasts, endothelial or immune cells, reduced CD24 expression, suggesting that crosstalk with the somatic microenvironment influences CD24 expression. In a CRISPR/Cas9-deficiency model, we demonstrate that CD24 fulfils a bivalent role in differentiation via regulation of homeobox, phospho- and glycoproteins, i.e. it is involved in suppressing the germ cell/spermatogenesis program and mesodermal/endodermal differentiation, while poising the cells for ectodermal differentiation. Finally, blocking CD24 by a monoclonal antibody enhanced sensitivity towards cisplatin in EC cells, including cisplatin-resistant subclones, highlighting CD24 as a putative target in combination with cisplatin.
Margaretha A Skowron, Teresa K Becker, Lukas Kurz, Sina Jostes, Felix Bremmer, Florian Fronhoffs, Kai Funke, Gamal A Wakileh, Melanie R MÃ¼ller, Aaron Burmeister, Thomas Lenz, Anja Stefanski, Kai StÃ¼hler, Patrick Petzsch, Karl KÃ¶hrer, Peter Altevogt, Peter Albers, Glen Kristiansen, Hubert Schorle, Daniel Nettersheim
2966 related Products with: The signal transducer CD24 suppresses the germ cell program and promotes an ectodermal rather than mesodermal cell fate in embryonal carcinomas.2 Pieces/Box100ug Lyophilized100ug Lyophilized100ug Lyophilized96 tests1 mg100ug Lyophilized2 Pieces/Box100ug Lyophilized
#34293747 2021/07/22 To Up
Metabolic Disorders/Obesity Is a Primary Risk Factor in Hidradenitis Suppurativa: An Immunohistochemical Real-World Approach.Hidradenitis suppurativa (HS) is an inflammatory, potentially scarring disease of the hair follicle, affecting the apocrine gland-bearing skin areas. The major comorbid disorders associated with the occurrence or the aggravation of the disease are obesity and smoking. Numerous efforts to dissociate these factors led to controversial results.
Katarzyna P Kaleta, Georgios Nikolakis, Amir M Hossini, Ottfried Balthasar, Daifallah Almansouri, Aristeidis Vaiopoulos, JÃ¼rgen Knolle, Anna Boguslawska, Anna Wojas-Pelc, Christos C Zouboulis
2232 related Products with: Metabolic Disorders/Obesity Is a Primary Risk Factor in Hidradenitis Suppurativa: An Immunohistochemical Real-World Approach.0.1ml (1mg/ml)100ug Lyophilized100ug Lyophilized100ug Lyophilized100ug Lyophilized100ug Lyophilized100.00 ug100ug Lyophilized100ug Lyophilized100ug Lyophilized100ug Lyophilized100 ug
#34293688 2021/07/09 To Up
Highly sensitive magnetic relaxation sensing method for aflatoxin B1 detection based on Au NP-assisted triple self-assembly cascade signal amplification.Highly sensitive detection of aflatoxin B (AFB) is of great significance because of its high toxicity and carcinogenesis. We propose a magnetic relaxation sensing method based on gold nanoparticles (Au NPs)-assisted triple self-assembly cascade signal amplification for highly sensitive detection of AFB. Both AFB antibody and initiator DNA (iDNA) are labeled on Au NPs to form Ab-Au-iDNA probe. iDNA is enriched by Au NPs to achieve first signal amplification. Different amounts of Ab-Au-iDNA were bound with AFB antigen by indirect competitive immunoassay, and then hybridization chain reaction event was initiated by iDNA to produce long hybridization chain reaction products to enrich more horseradish peroxidase-streptavidin for the second signal amplification. Dopamine could be rapidly converted to polydopamine by HRP catalysis, which is used as the third signal amplification. The Fe solution, providing paramagnetic ions with a strong magnetic signal, could be adsorbed by the polydopamine due to the formation of coordination bonds of phenolic hydroxyl groups with Fe. This effective interaction between polydopamine and Fe significantly changes the transverse relaxation time signal of Fe supernatant solution, which can be used as a magnetic probe for highly sensitive detection of AFB. The sensor exhibited high specificity and sensitivity with a detection limit of 0.453Â pg/mL owing to the Au NP-assisted triple self-assembly cascade signal amplification strategy. It has been successfully employed for AFB detection in animal feed samples with consistent results of enzyme linked immune sorbent assay and high-performance liquid chromatography.
Feng Hong, Chenxi Huang, Long Wu, Miao Wang, Yiping Chen, Yongxin She
1968 related Products with: Highly sensitive magnetic relaxation sensing method for aflatoxin B1 detection based on Au NP-assisted triple self-assembly cascade signal amplification.100tests96 tests2 Pieces/Box2 Pieces/Box100tests2 Pieces/Box2 Pieces/Box100tests100tests
#34293683 2021/07/15 To Up
Acute autoimmune-like hepatitis with atypical anti-mitochondrial antibody after mRNA COVID-19 vaccination: A novel clinical entity?Autoimmune phenomena and clinically apparent autoimmune diseases, including autoimmune hepatitis, are increasingly been reported not only after natural infection with the SARS-CoV-2 virus, but also after vaccination against it. We report the case of a 63-year old man without a history of autoimmunity or SARS-CoV-2 natural infection who experienced acute severe autoimmune-like hepatitis seven days after the first dose of the mRNA-1273 SARS-CoV-2 vaccine. Liver histology showed inflammatory portal infiltrate with interface hepatitis, lobular and centrilobular inflammation with centrilobular necrosis, in absence of fibrosis and steatosis. Serum immunoglobulin G was slightly elevated. Autoimmune liver serology showed an indirect immunofluorescence pattern on triple rodent tissue compatible with anti-mitochondrial antibody (AMA), but, unexpectedly, this pattern was not mirrored by positivity for primary biliary cholangitis (PBC)-specific molecular tests, indicating that this antibody is different from classical AMA. Anti-nuclear antibody (ANA) was also positive with a rim-like indirect immunofluorescence pattern on liver and HEp2 cell substrates, similar to PBC-specific ANA; however, anti-gp210 and a large panel of molecular-based assays for nuclear antigens were negative, suggesting a unique ANA in our patient. He carries the HLA DRB1*11:01 allele, which is protective against PBC. Response to prednisone treatment was satisfactory. The clinical significance of these novel specificities needs to be further evaluated in this emerging condition.
Michele Ghielmetti, Helen Dorothea Schaufelberger, Giorgina Mieli-Vergani, Andreas Cerny, Eric Dayer, Diego Vergani, Benedetta Terziroli Beretta-Piccoli
2963 related Products with: Acute autoimmune-like hepatitis with atypical anti-mitochondrial antibody after mRNA COVID-19 vaccination: A novel clinical entity?96tests100μg100ug Lyophilized100ug100ug Lyophilized100ug Lyophilized100ug 100 UG100ug Lyophilized100ug Lyophilized100ug Lyophilized100ug Lyophilized
#34293641 2021/07/17 To Up
SARS-CoV-2 anti-spike antibody titres after vaccination with BNT162b2 in naÃ¯ve and previously infected individuals.Great expectations are placed in vaccines against COVID-19 to control the pandemic. We reviewed the antibody titres in a cohort of healthcare workers (HCWs) vaccinated with BNT162b2 to assess the influence of a previous infection on them. We stratified the results according to the individual history of nasopharyngeal swab (NPS) and symptoms. Among 3475 HCWs the highest titres were recorded among those infected more than 6 months before vaccination, independently of symptoms, followed by those infected less than 6 months before vaccination, especially in those with symptoms, and by uninfected HCWs. Vaccination with BNT162b2 can boost immunity acquired through infection, particularly in those infected more than 6 months before vaccination.
Andrea Lombardi, Dario Consonni, Massimo Oggioni, Patrizia Bono, Sara U Renteria, Alessandra Piatti, Angela C Pesatori, Silvana Castaldi, Antonio Muscatello, Luciano Riboldi, Ferruccio Ceriotti, Alessandra Bandera, Andrea Gori
2601 related Products with: SARS-CoV-2 anti-spike antibody titres after vaccination with BNT162b2 in naÃ¯ve and previously infected individuals.100ug Lyophilized100ug Lyophilized100ug Lyophilized100ug Lyophilized100 µg100ug Lyophilized100ug100ug Lyophilized100ug100ug Lyophilized100ug100ug Lyophilized
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#34293528 2021/06/12 To Up
Electrophysiological predictors of response to subcutaneous immunoglobulin therapy in chronic inflammatory demyelinating polyneuropathy.To assess axonal function prior to subcutaneous immunoglobulin (SCIG) therapy or placebo in relation to relapse in chronic inflammatory demyelinating polyneuropathy (CIDP) to determine whether axonal damage can predict therapy response.
Monica Alcantara, Hans-Peter Hartung, John-Philip Lawo, Billie L Durn, Orell Mielke, Vera Bril
1512 related Products with: Electrophysiological predictors of response to subcutaneous immunoglobulin therapy in chronic inflammatory demyelinating polyneuropathy.2ug100 2ug96T96 wells (1 kit)5ug5ug1 mg
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