Glutamine antagonists and their use for treating oncological, immunological, and neurological diseases are disclosed. Also disclosed are methods for treating an oncological, immunological, infectious or neurological disease or disorder, the method comprising administering to a subject in need of treatment thereof a therapeutically effective amount of a glutamine antagonist of the disclosure or the pharmaceutical composition thereof. Also disclosed are methods of enhancing the effects of an immune checkpoint inhibitor, enabling a subject to respond to an immune checkpoint inhibitor, or enabling the toxicity or the dose or number of treatments with an immune checkpoint inhibitor to be reduced, comprising administering to a subject in need of treatment thereof a therapeutically effective amount of a glutamine antagonist of the disclosure or the pharmaceutical composition thereof, and an immune checkpoint inhibitor. Also disclosed are methods for treating an oncological, immunological, infectious or neurological disease or disorder that is refractory to checkpoint inhibitor therapy, the method comprising administering to a subject in need thereof, and having the refractory disease or disorder, a therapeutically effective amount of a glutamine antagonist of the disclosure or the pharmaceutical composition thereof.

In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V): ##STR00001##
and/or a salt thereof, wherein R.sub.1 is —OH or —OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V): ##STR00001##
and/or a salt thereof, wherein R.sub.1 is —OH or —OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

This disclosure relates to modulators of liver receptor homologue 1 (LRH-1) and methods of managing disease and conditions related thereto. In certain embodiments, modulators are derivatives of hexahydropentalene. In certain embodiments, this disclosure relates to methods of treating or preventing cancer, diabetes, or cardiovascular disease by administering an effective amount of a hexahydropentalene derivative disclosed herein.

This disclosure relates to modulators of liver receptor homologue 1 (LRH-1) and methods of managing disease and conditions related thereto. In certain embodiments, modulators are derivatives of hexahydropentalene. In certain embodiments, this disclosure relates to methods of treating or preventing cancer, diabetes, or cardiovascular disease by administering an effective amount of a hexahydropentalene derivative disclosed herein.

The present document describes compounds, or pharmaceutically acceptable salt thereof, of a core formula (I) where R.sub.1 features an amine group, particularly useful in the formulation of lipid particles including nucleic acid therapeutic agents, or proteins, or both, and for delivery of nucleic acid and protein therapeutics to cells in vivo or ex vivo, including anticancer and vaccine applications.

##STR00001##