Patents by Inventor Steven R. Ottersberg
Steven R. Ottersberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7943665Abstract: Oncoproteins such as Ras and RhoB are known to induce cell division in an unrestrained manner when such proteins are localized at the inner surface of a cancer cell membrane. The localization is effected by the prenylation reaction, whereby a hydrophobic group (e.g. a farnesyl group) is attached to the protein in the presence of an enzyme (e.g. farnesyl protein transferase). Deactivation of the prenylation enzyme through covalent modification can therefore ultimately result in the mitigation and/or cessation of cancer cell growth. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds (or masked versions of these compounds) and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group. The carbonyl or thiocarbonyl compounds also contain a nucleofugal atom or group to enhance the tendency to form covalent bonds.Type: GrantFiled: September 4, 2008Date of Patent: May 17, 2011Assignee: Arizona Biomedical Research CommissionInventors: Seth D. Rose, Scott R. Lefler, Steven R. Ottersberg, Ann Y. Kim, Karl J. Okolotowicz, Rosemarie F. Hartman
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Publication number: 20090143467Abstract: Oncoproteins such as Ras and RhoB are known to induce cell division in an unrestrained manner when such proteins are localized at the inner surface of a cancer cell membrane. The localization is effected by the prenylation reaction, whereby a hydrophobic group (e.g. a farnesyl group) is attached to the protein in the presence of an enzyme (e.g. farnesyl protein transferase). Deactivation of the prenylation enzyme through covalent modification can therefore ultimately result in the mitigation and/or cessation of cancer cell growth. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds (or masked versions of these compounds) and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group. The carbonyl or thiocarbonyl compounds also contain a nucleofugal atom or group to enhance the tendency to form covalent bonds.Type: ApplicationFiled: September 4, 2008Publication date: June 4, 2009Inventors: Seth D. Rose, Scott R. Lefler, Steven R. Ottersberg, Ann Y. Kim, Karl J. Okolotowicz, Rosemarie F. Hartman
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Patent number: 7423170Abstract: Oncoproteins such as Ras and RhoB are known to induce cell division in an unrestrained manner when such proteins are localized at the inner surface of a cancer cell membrane. The localization is effected by the prenylation reaction, whereby a hydrophobic group (e.g. a farnesyl group) is attached to the protein in the presence of an enzyme (e.g. farnesyl protein transferase). Deactivation of the prenylation enzyme through covalent modification can therefore ultimately result in the mitigation and/or cessation of cancer cell growth. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds (or masked versions of these compounds) and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group. The carbonyl or thiocarbonyl compounds also contain a nucleofugal atom or group to enhance the tendency to form covalent bonds.Type: GrantFiled: January 23, 2006Date of Patent: September 9, 2008Assignee: Arizona Biomedical Research CommissionInventors: Seth D. Rose, Scott R. Lefler, Steven R. Ottersberg, Ann Y. Kim, Karl J. Okolotowicz, Rosemarie F. Hartman
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Patent number: 7344851Abstract: Prenylating enzymes are involved in modifying oncoproteins, such as RAS, so that growth of neoplastic cells becomes uncontrolled. Inactivation of such enzymes can prevent uncontrolled growth. ?-Dicarbonyl compounds can be used to covalently modify and thereby inactivate prenylating enzymes such as protein farnesyltransferase and protein geranylgeranyltransferase. The compounds can be designed to enhance affinity and/or specificity for a particular protein substrate.Type: GrantFiled: October 11, 2005Date of Patent: March 18, 2008Assignee: Arizona Biomedical Research CommissionInventors: Seth D. Rose, Steven R. Ottersberg, Karl J. Okolotowicz, Dale E. Robinson, Rosemarie F. Hartman, Scott Lefler
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Patent number: 7019031Abstract: Oncoproteins such as Ras and RhoB are known to induce cell division in an unrestrained manner when such proteins are localized at the inner surface of a cancer cell membrane. The localization is effected by the prenylation reaction, whereby a hydrophobic group (e.g. a farnesyl group) is attached to the protein in the presence of an enzyme (e.g. farnesyl protein transferase). Deactivation of the prenylation enzyme through covalent modification can therefore ultimately result in the mitigation and/or cessation of cancer cell growth. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds (or masked versions of these compounds) and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group. The carbonyl or thiocarbonyl compounds also contain a nucleofugal atom or group to enhance the tendency to form covalent bonds.Type: GrantFiled: October 23, 2001Date of Patent: March 28, 2006Assignee: The Arizona Disease Control Research CommissionInventors: Seth D. Rose, Scott R. Lefler, Steven R. Ottersberg, Ann Y. Kim, Karl J. Okolotowicz, Rosemarie F. Hartman
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Patent number: 7012097Abstract: Prenylating enzymes are involved in modifying oncoproteins, such as RAS, so that growth of neoplastic cells becomes uncontrolled. Inactivation of such enzymes can prevent uncontrolled growth. ?-Dicarbonyl compounds can be used to covalently modify and thereby inactivate prenylating enzymes such as protein farnesyltransferase and protein geranylgeranyltransferase. The compounds can be designed to enhance affinity and/or specificity for a particular protein substrate.Type: GrantFiled: May 14, 2003Date of Patent: March 14, 2006Assignee: The Arizona Disease Control Research CommissionInventors: Seth D. Rose, Steven R. Ottersberg, Karl J. Okolotowicz, Dale E. Robinson, Rosemarie Hartman, Scott Lefler
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Publication number: 20030219847Abstract: Prenylating enzymes are involved in modifying oncoproteins, such as RAS, so that growth of neoplastic cells becomes uncontrolled. Inactivation of such enzymes can prevent uncontrolled growth. &agr;-Dicarbonyl compounds can be used to covalently modify and thereby inactivate prenylating enzymes such as protein farnesyltransferase and protein geranylgeranyltransferase. The compounds can be designed to enhance affinity and/or specificity for a particular protein substrate.Type: ApplicationFiled: May 14, 2003Publication date: November 27, 2003Applicant: The Arizona Disease Control Research CommissionInventors: Seth D. Rose, Steven R. Ottersberg, Karl J. Okolotowicz, Dale E. Robinson, Rosemarie Hartman, Scott Lefler
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Patent number: 6576436Abstract: Prenylating enzymes are involved in modifying oncoproteins, such as RAS, so that growth of neoplastic cells becomes uncontrolled. Inactivation of such enzymes can prevent uncontrolled growth. &agr;-Dicarbonyl compounds can be used to covalently modify and thereby inactivate prenylating enzymes such as protein farnesyltransferase and protein geranylgeranyltransferase. The compounds can be designed to enhance affinity and/or specificity for a particular protein substrate.Type: GrantFiled: December 9, 1999Date of Patent: June 10, 2003Assignee: The Arizona Disease Control Research CommissionInventors: Seth D. Rose, Steven R. Ottersberg, Karl J. Okolotowicz, Dale E. Robinson, Rosemarie Hartman, Scott Lefler
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Publication number: 20020086884Abstract: Oncoproteins such as Ras and RhoB are known to induce cell division in an unrestrained manner when such proteins are localized at the inner surface of a cancer cell membrane. The localization is effected by the prenylation reaction, whereby a hydrophobic group (e.g. a farnesyl group) is attached to the protein in the presence of an enzyme (e.g. farnesyl protein transferase). Deactivation of the prenylation enzyme through covalent modification can therefore ultimately result in the mitigation and/or cessation of cancer cell growth. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds (or masked versions of these compounds) and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group. The carbonyl or thiocarbonyl compounds also contain a nucleofugal atom or group to enhance the tendency to form covalent bonds.Type: ApplicationFiled: October 23, 2001Publication date: July 4, 2002Inventors: Seth D. Rose, Scott R. Lefler, Steven R. Ottersberg, Ann Y. Kim, Karl J. Okolotowicz, Rosemarie F. Hartman