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Radioimmunoguided surgery using the monoclonal antibody B72.3 in colorectal tumors

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TLDR
The authors have developed a hand-held gamma-detecting probe (GDP) for intraoperative use that improves the sensitivity of external radioimmunodetection and may influence the short-term morbidity and mortality of surgery for colorectal cancer.
Abstract: 
The authors have developed a hand-held gamma-detecting probe (GDP) for intraoperative use that improves the sensitivity of external radioimmunodetection. Radiolabeled monoclonal antibody (MAb) B72.3 was injected in six patients with primary colorectal cancer and 31 patients with recurrent colorectal cancer an average of 16 days preoperatively. The GDP localized the MAb B72.3 in 83 percent of sites. The technique, known as a radioimmunoguided surgery (RIGS) system did not alter the surgical procedure in patients with primary colorectal cancer but did alter the approach in 26 percent (8/31) of patients with recurrent colorectal cancer. Two patients avoided unnecessary liver resections and two underwent extraabdominal approaches to document their disease. The RIGS system may influence the short-term morbidity and mortality of surgery for colorectal cancer. Larger series and longer follow-up are needed to determine whether the RIGS system confers a survival advantage to the patient with colorectal cancer.

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Construction, Binding Properties, Metabolism, and Tumor Targeting of a Single-Chain Fv Derived from the Pancarcinoma Monoclonal Antibody CC49

TL;DR: The construction and characterization of a recombinant single-chain Fv (sFv) of CC49 was shown to be a Mr 27,000 homogeneous entity which could be efficiently radiolabeled with 125I or 131I and shown to bind biopsies of TAG-72-expressing tumors and may have utility in diagnostic and perhaps therapeutic applications for a range of human carcinomas.
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Generation and Characterization of B72.3 Second Generation Monoclonal Antibodies Reactive with the Tumor-associated Glycoprotein 72 Antigen

TL;DR: It is demonstrated that one or more of the anti-TAG-72 CC MAbs may be more efficient than B72.3, or useful in combination with B72,3, toward the further study of human carcinoma cell population and the diagnostic and therapeutic procedures presently utilizing MAb B 72.3.
Journal ArticleDOI

A comprehensive overview of radioguided surgery using gamma detection probe technology

TL;DR: In the current review, this work has attempted to comprehensively evaluate the history, technical aspects, and clinical applications of radioguided surgery using gamma detection probe technology.
Journal Article

Enhanced Tumor Binding Using Immunohistochemical Analyses by Second Generation Anti-Tumor-associated Glycoprotein 72 Monoclonal Antibodies versus Monoclonal Antibody B72.3 in Human Tissue

TL;DR: Evidence is provided that these second generation anti-tumor-associated glycoprotein MAbs may be more efficient than B72.3 in the further study of human carcinoma cell populations and in the diagnostic and therapeutic procedures presently being pursued with MAb B 72.3.
Journal Article

Characterization and biodistribution of recombinant and recombinant/chimeric constructs of monoclonal antibody B72.3.

TL;DR: A recombinant form of the murine B72.3 as well as a recombinant/chimeric antibody are developed, both of which maintain the tissue binding and idiotypic specificity of the native murine IgG.
References
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Journal ArticleDOI

Use of Radiolabeled Antibodies to Carcinoembryonic Antigen for the Detection and Localization of Diverse Cancers by External Photoscanning

TL;DR: To determine whether tumors containing carcinoembryonic antigen could be detected by administration of a radiolabeled, affinity-purified, goat lgG, 18 patients with a history of cancer of diverse histopathology received an average total dose of 1.0 mCi of 131l-labeled lGG.
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A spectrum of monoclonal antibodies reactive with human mammary tumor cells

TL;DR: Eleven monoclonal antibodies were chosen that demonstrated reactivities with human mammary tumor cells and not with apparently normal human tissues, and all five major groups demonstrated binding to human metastatic mammary carcinoma cells both in axillary lymph nodes and at distal sites.
Journal Article

Distribution of Oncofetal Antigen Tumor-associated Glycoprotein-72 Defined by Monoclonal Antibody B72.3

TL;DR: The pancarcinoma distribution and lack of significant reactivity with normal adult tissues of monoclonal antibody B72.3 suggest its potential diagnostic and therapeutic utility for human carcinomas.
Journal ArticleDOI

Tumor localization of radiolabeled antibodies against carcinoembryonic antigen in patients with carcinoma: a critical evaluation.

TL;DR: Purified, [131I]-labeled goat antibodies against carcinoembryonic antigen, which have been shown to localize in human carcinoma in nude mice, were injected into patients with carcinoma and demonstrated that only the anti-CEA antibodies localized in tumors.
Journal ArticleDOI

Results of a 400-patient carcinoembryonic antigen second-look colorectal cancer study.

TL;DR: The highest resectability of recurrent cancer occurred in patients with a CEA level below 11 ng/ml in whom the CEAlevel was determined at intervals of 1 to 2 months.
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