National Institutes of Health, a Component of the US Dept. of Health & Human Services

Other

Alfredo Martinez

Frank Cuttitta

William G Stetler-Stevenson

Edward J Unsworth

William A Hook

Mae Jean Miller

Thomas Walsh

Ted H Elsasser

Karen Gray

Charles Macri

Rubén Pio

Frank Cutitta

Rubén Pío

Juan M Saavedra

The present invention provides methods for the isolation, identification, and purification of adrenomedullin (AM)-binding proteins. Also, provided are methods for utilizing the purified AM-binding proteins, or functional portions thereof, to diagnose, treat, and monitor AM-related diseases, for example, diseases or disorders associated with abnormally elevated AM levels. In addition, the present invention provides a newly identified complex between AM and a specific AM-binding protein 1 (AMBP-1); which has been isolated and identified herein as factor H (fH). The invention also provides AM/AMBP complexes, particularly AM/FH complexes, and antibodies specifically reactive with this complexes. Further provided are methods for identifying and purifying complexes of AM and an AM binding protein using anti-AM/fH antibodies, and methods for treating conditions such as cancer or diabetes utilizing compositions comprising these antibodies. The present invention additionally provides methods for identifying antagonists agents that inhibit the function of AM, factor H, or the AM/factor H complex. The invention also provides methods for treating conditions such as cancer or diabetes using these antagonist agents.

Determination of AM-binding proteins and the association of adrenomedullin (AM) therewith

The methods of the present invention demonstrate that adrenomedullin (AM) is expressed in human cancer cell lines of diverse origin and functions as a universal autocrine growth factor driving neoplastic proliferation. The present invention provides for AM peptides and AM antibodies useful in therapeutic, pharmacologic and physiologic compositions. The present invention additionally provides for methods of diagnosis, treatment and prevention of disease utilizing compositions comprising the AM peptides and antibodies of the present invention. The methods of the present invention also provide for experimental models for use in identifying the role of AM in pancreatic physiology. The methods pertaining to rat isolated islets have show that AM inhibits insulin secretion in a dose-dependent manner. The monoclonal antibody MoAb-G6, which neutralizes AM bioactivity, was show by the methods of the present invention to increase insulin release fivefold, an effect that was reversed by the addition of synthetic AM.

Functional role of adrenomedullin (AM) and the gene related product (PAMP) in human pathology and physiology

The present disclosure concerns the use of peptides and compositions, such as pharmaceutical compositions, to influence angiogenesis. Particular methods are useful for promoting angiogenesis, while others are particularly useful for inhibiting angiogenesis.

Methods for inhibiting angiogenesis with inhibitors of proadrenomedullin N-terminal 20 peptide (PAMP)

Functional role of adrenomedullin (AM) and the gene-related product (PAMP) in human pathology and physiology

Compositions and methods for promoting angiogenesis

Methods and compounds are described for regulating blood pressure in a subject. Specific embodiments are methods for reversing vasodilation of blood vessels, by administering to a subject a therapeutically effective amount peptide AM(11-22). The vasoconstrictor can be used for a variety of purposes, including hemostasis or the treatment of shock, for example vasodilatory shock syndromes such as septic shock. Other specific embodiments are methods for reversing vasoconstriction of blood vessels, by administering to a subject a therapeutically effect amount of an inhibitor of AM(11-22), sufficient to reduce hypertension in the subject. Compounds and pharmaceutical compositions are also provided, as are kits.

Vasoregulating compounds and methods of their use

The methods of the present invention demonstrate that adrenomedullin (AM) is expressed in human cancer cell lines of diverse origin and functions as a universal autocrine growth factor driving neoplastic proliferation. The present invention provides for AM peptides and AM antibodies useful in therapeutic, pharmacologic and physiologic compositions. The present invention additionally provides for methods of diagnosis, treatment and prevention of disease utilizing compositions comprising the AM peptides and antibodies of the present invention. The methods of the present invention also provide for experimental models for use in identifying the role of AM in pancreatic physiology. The methods pertaining to rat isolated islets have shown that AM inhibits insulin secretion in a dose-dependent manner. The monoclonal antibody MoAb-G6, which neutralizes AM bioactivity, was shown by the methods of the present invention to increase insulin release fivefold, an effect that was reversed by the addition of synthetic AM.

Adrenomedullin peptides

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McLean, VA, United States of America

Alfredo Martinez