Immunotoxins directed against human transferrin receptor have been evaluated in a nude mouse model of human malignant mesothelioma. Immunotoxins were constructed by linking ricin A chain to murine monoclonal antibodies reactive with the human transferrin receptor. A chain was obtained either by isolation from the parent toxin or by recombinant DNA techniques. These immunotoxins acted as potent ...

This study was performed to assess the subacute toxicity and immunogenicity in rats of XOMAZYME-MEL, an antimelanoma monoclonal antibody-ricin A chain immunotoxin. Female Sprague-Dawley rats received 14 consecutive daily i.v. injections of XOMAZYME-MEL at doses of 5 mg/kg/day, 1 mg/kg/day, or normal saline. Animals from each dose group were sacrificed on days 8, 15, and 22. The low dose of immu...

Background and objectivesThe overexpression mutation of EGFRs are associated with various types human cancers. Epidermal growth factor receptor variant III (EGFRvIII) is one the most notable EGFR mutations, exclusively present in cancer cells, making it a potential therapeutic target. The study aims to determine whether recombinant immunotoxin 86 (rIT86) can effectively kill EGFRvIII-expressing...

PURPOSE Many solid tumors express cell surface mesothelin making them attractive targets for antibody-based therapies of cancer. SS1P [antimesothelin(Fv)PE38] is a recombinant immunotoxin (RIT) that has potent cytotoxic activity on several cancer cell lines and clinical activity in mesothelioma patients. Pancreatic cancers express mesothelin and are known to be resistant to most chemotherapeuti...

Background: DAB389IL-2 is considered a fusion immunotoxin and it is used for the CTCL therapy. DAB389IL-2 includes of two distinct portions; the catalytic domain of diphtheria toxin and IL-2. DAB389IL-2 duo to the presence of a free cysteine residue (Cys 513 in IL-2 part) is prone to unwanted intramolecular and intermolecular disulfide bonds formation and aggregation problems. Aggregation is co...

The CD-19-directed immunotoxin anti-B4-blocked ricin (antiB4-bR) is currently in clinical trials for the treatment of Bcell malignancies. To explore the potential of using antiB4-bR with chemotherapy protocols we tested the in vivo efficacy of the immunotoxin in combination with two multidrug chemotherapeutic regimens in severe combined immunodeficient (SCID) mice bearing disseminated tumors of...

Immunotoxins, consisting of antibodies coupled to toxins, are extremely useful tools in the elimination of specific cell populations in vitro and in vivo for research and therapeutic applications. The antibody is used to target the toxin to a specific cell population, which is distinguished by its cell-surface antigen. Not all antibodies are suitable for creating an immunotoxin, and large numbe...

Transferrin plays a central role in cellular proliferation and proliferating cells have been shown to express transferrin receptors with increased density. We examined the effect of an immunotoxin consisting of anti-transferrin receptor monoclonal antibody (454A12) conjugated to recombinant ricin A chain (rRTA) on the proliferation of human corneal endothelium (HCE) in vitro. In proliferating c...

Citation: Xu J, Li X, Jiang B, Feng X, Wu J, Cai Y, Zhang X, Huang X, Sealy JE, Iqbal M and Li Y (2018) Antiviral Immunotoxin Against Bovine herpesvirus-1: Targeted Inhibition of Viral Replication and Apoptosis of Infected Cell. Front. Microbiol. 9:653. doi: 10.3389/fmicb.2018.00653 Antiviral Immunotoxin Against Bovine herpesvirus-1: Targeted Inhibition of Viral Replication and Apoptosis of Inf...