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This study was conducted to study the influence of protein structure on the immunogenicity in wild-type and immune tolerant mice of well-characterized degradation products of recombinant human interferon alpha2b (rhIFNα2b). RhIFNα2b was degraded by metal-catalyzed oxidation (M), cross-linking with glutaraldehyde (G), oxidation with hydrogen peroxide (H),(More)
An attempt was made to unravel the metabolic profile of the alkylating agent N,N',N''-triethylenethiophosphoramide (thioTEPA). thioTEPA and its metabolite N,N',N-triethylenephosphoramide (TEPA) were quantified in urine of treated patients by gas chromatography with selective nitrogen/phosphorous detection. Total alkylating activity was assessed by(More)
Patients with advanced head and neck squamous cell carcinomas (HNSCCs) are often treated with concomitant chemotherapy and radiotherapy, but only 50% is cured. A possible explanation for treatment failure is therapy resistance of the cancer stem cells (CSCs). The application of compounds specifically targeting these CSCs, in addition to routinely used(More)
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common type of cancer worldwide. Strong prognostic indicators that predict development of distant metastases are the presence and number of lymph node metastases in the neck, and extranodal spread. Recently, it was shown in several studies that also the presence of disseminated tumor cells(More)
Serine protease granzyme M (GrM) is highly expressed in the cytolytic granules of NK cells, which eliminate virus-infected cells and tumor cells. The molecular mechanisms by which GrM induces cell death, however, remain poorly understood. In this study we used a proteomic approach to scan the native proteome of human tumor cells for intracellular substrates(More)
New lipid analogs mimicking the abundant membrane phospholipid phosphatidylcholine were developed to photocrosslink proteins interacting with phospholipid headgroups at the membrane interface. In addition to either a phenylazide or benzophenone photoactivatable moiety attached to the headgroup, the lipid analogs contained azides attached as baits to the(More)
To analyze proteins interacting at the membrane interface, a phospholipid analogue was used with a photoactivatable headgroup (ASA-DLPE, N-(4-azidosalicylamidyl)-1,2-dilauroyl-sn-glycero-3-phosphoethanolamine) for selective cross-linking. The peripheral membrane protein cytochrome c from the inner mitochondrial membrane was rendered carbonate wash-resistant(More)
BACKGROUND Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, yet current pharmacological treatments are limited. Serine/threonine protein phosphatase type-1 (PP1), a major phosphatase in the heart, consists of a catalytic subunit (PP1c) and a large set of regulatory (R)-subunits that confer localization and substrate specificity to(More)
During tumor development, loss of heterozygosity (LOH) often occurs. When LOH is preceded by an oncogene activating mutation, the mutant allele may be further potentiated if the wild-type allele is lost or inactivated. In myeloproliferative neoplasms (MPN) somatic acquisition of JAK2V617F may be followed by LOH resulting in loss of the wild type allele. The(More)