We investigated which is the shortest fragment of the interferon gamma receptor with ligand binding capacity. A recombinant soluble interferon gamma receptor produced in Escherichia coli was subjected to controlled digestion with several proteolytic enzymes. The fragments generated were assayed by four approaches for interferon gamma binding. A 25-kDa polypeptide comprising residues 6-227 of th...

Medical therapy of clinically nonfunctioning (nonsecreting) low grade (grade 1–2) neuroendocrine neoplasms consists first-line first generation somatostatin analogs and second-line or third-line peptide receptor radiotherapy with radiolabeled beta-emitting analogs, Everolimus, Sunitinib, interferon-α. Second-generation like Pasireotide have no proven superiority over first-generation analogs. C...

Interferons and interleukin-10 are involved in key aspects of the host defence mechanisms. Human chromosome 21 harbors the interferon/interleukin-10 receptor gene cluster linked to the GART gene. This cluster includes both components of the interferon alpha/beta-receptor (IFNAR1 and IFNAR2) and the second components of the interferon gamma-receptor (IFNGR2) and of the IL-10 receptor (IL10R2). W...

We purified and characterized a soluble human interferon gamma receptor expressed in Escherichia coli. The soluble receptor comprises the amino acids 15-246 of the encoded protein (Aguet, M., Dembic, Z., and Merlin, G. (1988) Cell 55, 273-280) and was purified from large scale fermentations through four chromatographic steps with an overall recovery of 28%. The refolded soluble receptor shows s...

Maternal antibodies inhibit seroconversion and the generation of measles virus (MeV)-specific antibodies (both neutralizing and non-neutralizing antibodies) after vaccination whereas T cell responses are usually unaffected. The lack of seroconversion leaves individuals susceptible to vaccine-preventable infections. Inhibition of antibody secretion is due to the inhibition of B cells through a c...

Resistance to immunotherapy is due in some instances the acquired stealth mechanisms of tumor cells that lose expression MHC class I antigen–presenting molecules or downregulate their antigen–presentation pathways. Most dramatically, biallelic ?2-microglobulin (B2M) loss leads complete and invisibility CD8 + T cells. antigen presentation are potently upregulated by interferon-? (IFN?) a manner ...

Background: A large-scale randomized trial of adjuvant interferon-a therapy for patients with osteosarcoma has been initiated as a joint protocol by the European and American Osteosarcoma Study Group. Because the expression of functional interferon-a/b receptor is necessary for interferon-a agents to interact with osteosarcoma cells, we examined the expression of interferon-a/b receptor in a se...

A viral inhibitor with the characteristics of mouse interferon is produced by avian and simian cells preincubated with RNA extracted from interferon-producing mouse cells. Similarly, RNA extracted from interferon-producing monkey cells induces a monkey interferon-like substance in avian cells and also in a line of simian cells, VERO, which normally lacks the capacity to produce its own interfer...