Abstract: The present invention relates to a method of treating cancer selected from the group of cancers consisting of prostate cancer, renal cancer, breast cancer, ovarian cancer, CNS cancer, melanoma, lung cancer, and bladder cancer. This method involves administering to a patient in need of such treatment a therapeutically effective amount of a betulinol derivative compound of Formula (I). Also disclosed are conjugated and immunoconjugated derivatives of the compound of Formula (I) as well as methods of making and using them.

Abstract: The present invention relates to methods of treating HIV-1 infection in a subject. These methods involve administering to the subject with HIV-1 infection a therapeutically effective amount of a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to treat the subject for HIV-1 infection. Also disclosed are methods inhibiting HIV-1 activity in a cell. These methods involve providing a cell infected with HIV-1 and contacting the cell with a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to inhibit HIV-1 activity in the cell.

Abstract: The present invention relates to a chimeric nucleic acid molecule encoding a fusion protein having a human lutropin hormone-receptor domain and a human chorionic gonadotropin-? subunit domain, the isolated human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein, and antibodies which recognize part or all the domains of the fusion protein. Also provided are compositions having the human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein and a pharmaceutical carrier and compositions including antibodies to the fusion protein and a pharmaceutical carrier.

Abstract: The present invention relates to a method of treating cancer selected from the group of cancers consisting of prostate cancer, renal cancer, breast cancer, ovarian cancer, CNS cancer, melanoma, lung cancer, and bladder cancer. This method involves administering to a patient in need of such treatment a therapeutically effective amount of a betulinol derivative compound of Formula (I). Also disclosed are conjugated and immunoconjugated derivatives of the compound of Formula (I) as well as methods of making and using them.

Abstract: The present invention relates to a chimeric nucleic acid molecule encoding a fusion protein having a human lutropin hormone-receptor domain and a human chorionic gonadotropin-? subunit domain, the isolated human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein, and antibodies which recognize part or all the domains of the fusion protein. Also provided are compositions having the human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein and a pharmaceutical carrier and compositions including antibodies to the fusion protein and a pharmaceutical carrier.

Abstract: The present invention relates to methods of treating HIV-1 infection in a subject. These methods involve administering to the subject with HIV-1 infection a therapeutically effective amount of a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to treat the subject for HIV-1 infection. Also disclosed are methods inhibiting HIV-1 activity in a cell. These methods involve providing a cell infected with HIV-1 and contacting the cell with a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to inhibit HIV-1 activity in the cell.

Abstract: The present invention relates to methods of treating HIV-1 infection in a subject. These methods involve administering to the subject with HIV-1 infection a therapeutically effective amount of a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to treat the subject for HIV-1 infection. Also disclosed are methods inhibiting HIV-1 activity in a cell. These methods involve providing a cell infected with HIV-1 and contacting the cell with a conjugated or immunoconjugated betulinol derivative compound, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to inhibit HIV-1 activity in the cell.

Abstract: The present invention relates to a method of treating cancer selected from the group of cancers consisting of prostate cancer, renal cancer, breast cancer, ovarian cancer, CNS cancer, melanoma, lung cancer, and bladder cancer. This method involves administering to a patient in need of such treatment a therapeutically effective amount of a betulinol derivative compound of Formula I Also disclosed are conjugated and immunoconjugated derivatives of the compound of Formula I as well as methods of making and using them.

Abstract: The present invention relates to a chimeric nucleic acid molecule encoding a fusion protein having a human lutropin hormone-receptor domain and a human chorionic gonadotropin-? subunit domain, the isolated human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein, and antibodies which recognize part or all the domains of the fusion protein. Also provided are compositions having the human lutropin hormone-receptor/human chorionic gonadotropin-? fusion protein and a pharmaceutical carrier and compositions including antibodies to the fusion protein and a pharmaceutical carrier.

Abstract: The present invention relates to a method of inhibiting HIV-1 activity in a cell. This method involves providing a cell infected with HIV-1 and contacting the cell with a compound of Formula I where R1 is —CH3, ?O, —OH, —OCH3, or —OC(O)CH3, and R2 is —H, —CH3, —CHO, —CH2OH, —CH2OCH3, —CH2OC(O)CH3, —COCH3, or —COOH, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to inhibit HIV-1 activity in the cell. A method of treating HIV-1 infection in a subject is also disclosed. This method involves administering a therapeutically effective amount of a compound of Formula I, or a pharmaceutically acceptable salt or derivative thereof, under conditions effective to treat the subject for HIV-1 infection.

Abstract: The present invention is directed to betulinol derivatives and betulinol-antibody conjugates having the formulae: and HO-antibody-spacer-(A2)n and, in particular, betulinol dimethyl ether. Methods for making and using these derivatives and conjugates, as well as a method for making and using betulonic aldehyde, are also disclosed.

Abstract: Purified hCG-hLH receptor, hCG-hLH receptor-hCG complex and combinations between their subunits as antigens, as well as antibodies thereto which are useful as a contraceptive vaccine. Antibodies to LH-R are useful in regulating steroid hormone production. Nucleic acid sequences encoding polypeptides with LH receptor activity were obtained and sequenced.

Abstract: Purified hCG-hLH receptor, hCG-hLH receptor-hCG complex and combinations between their subunits as antigens, as well as antibodies thereto which are useful as a contraceptive vaccine. Antibodies to LH-R are useful in regulating steroid hormone production. Nucleic acid sequences encoding polypeptides with LH receptor activity were obtained and sequenced.

Abstract: The present invention is directed to betulinol derivatives and betulinol-antibody conjugates having the formulae: 1

Abstract: The present invention is directed to betulinol derivatives and betulinol-antibody conjugates having the formulae: 1

Abstract: Purified hCG-hLH receptor, hCG-hLH receptor-hCG complex and combinations between their subunits as antigens, as well as antibodies thereto which are useful as a contraceptive vaccine.

Abstract: A method to obtain a substantially pure and stable hLH-hCG receptor from gonadal cells is disclosed. The characteristics of the purified receptor are disclosed. The receptor, in addition to being used as receptor in an enzyme- or dye-receptor assay for hLH and/or hCG, can be used to purify hLH or hCG used in the preparation of standard dye-hormone or enzyme-hormone complexes. These complexes can be used in enzyme- or dye-immunoassays, as well as the receptor assay.

Abstract: A reagent for use in a "sandwich" enzyme-immunoassay comprising a polymer of a bioactive substance-specific antibody:enzyme conjugate, wherein said antibody is conjugated to said enzyme by means of heterobifunctional cross-linking agent and a "sandwich" enzyme-immunoassay employing the polymer.

Abstract: A method to obtain a substantially pure and stable hLH-hCG receptor from gonadal cells is disclosed. The characteristics of the purified receptor are disclosed. The receptor, in addition to being used as receptor in an enzyme- or dye-receptor assay for hLH and/or hCG, can be used to purify hLH or hCG used in the preparation of standard dye-hormone or enzyme-hormone complexes. These complexes can be used in enzyme- or dye-immunoassays, as well as the receptor assay.