Abstract: Materials and methods for treating major depressive disorder by modulating the aryl hydrocarbon receptor system are provided herein.

Abstract: This document provides methods and materials involved in treating cancer. For example, methods and materials for using an inhibitor of USP7 polypeptide to increase the sensitivity of cancer cells (e.g., CD340+ cancer cells such as HER2+ cancer cells) to treatment with an inhibitor of a CD340 polypeptide (e.g., an inhibitor of a HER2 polypeptide) are provided. Methods and materials for using USP7 polypeptide inhibitors in combination with CD340 polypeptide inhibitors to treat cancer (e.g., HER2+ breast cancer that was refractory to trastuzumab alone treatment) are provided.

Abstract: This document provides methods and materials for treating cancer (e.g., estrogen receptor positive breast cancer). For example, methods and materials for identifying a mammal (e.g., a human) with cancer (e.g., estrogen receptor positive breast cancer) as having A?G variant genotype of rs6990851 and/or as having an elevated level of CSMD1 nucleic acid expression and administering one or more aromatase inhibitors (e.g., anastrozole) to treat the mammal identified as having such genotype and/or elevated level are provided.

Abstract: This document provides methods and materials for using butyrylcholinesterases (BChE) to treat cancer (e.g., triple negative breast cancer or prostate cancer). For example, methods and materials for using nucleic acid vectors (e.g., viral vectors) to express BChE polypeptides under conditions that reduce the number of cancer cells (e.g., triple negative breast cancer cells or prostate cancer cells) within a mammal (e.g., a human) and/or reduce the growth rate of cancer cells (e.g., triple negative breast cancer cells or prostate cancer cells) within a mammal (e.g., a human) are provided.

Abstract: This document provides methods and materials for treating cancer (e.g., estrogen receptor positive breast cancer). For example, methods and materials for identifying a mammal (e.g., a human) with cancer (e.g., estrogen receptor positive breast cancer) as having A?G variant genotype of rs6990851 and/or as having an elevated level of CSMD1 nucleic acid expression and administering one or more aromatase inhibitors (e.g., anastrozole) to treat the mammal identified as having such genotype and/or elevated level are provided.

Abstract: The present disclosure provides methods for accurately predicting the dynamics of symptom response to drugs or other interventions for the treatment of major depressive disorder or other psychological conditions. These methods can allow for a shortening of the time period necessary for the evaluation of a drug or other therapeutic intervention. These predictive methods are based on measured and/or self-reported symptom severity measures at two or more points in time. These measures are then discretized into symptom classes (e.g., low, moderate, severe) and the symptom classes are then applied to the predictive model to predict the progression of symptoms and/or the effectiveness of a drug or other therapeutic intervention.

Abstract: This document provides methods and materials involved in assessing chemotherapy responsiveness and treating cancer (e.g., breast cancer). For example, methods and materials for determining whether or not a cancer patient (e.g., a breast cancer patient) is likely to respond to chemotherapy (e.g., a taxane therapy) based at least in part on the presence of a variant in the mammal's polycystic kidney disease gene 1 (PKD1) are provided. In addition, methods and materials involved in treating mammals having cancer (e.g., breast cancer) by administering an inhibitor of ubiquitin specific peptidase 2 (USP2) polypeptide activity (e.g., NSC-632839, a 2-cyano-pyrimidine, or a 2-cyano-triazine) in combination with another chemotherapeutic agent such as a taxane therapy are provided.

Abstract: Materials and methods for treating major depressive disorder by modulating the aryl hydrocarbon receptor system are provided herein.

Abstract: This document provides methods and materials involved in assessing chemotherapy responsiveness and treating cancer (e.g., breast cancer). For example, methods and materials for determining whether or not a cancer patient (e.g., a breast cancer patient) is likely to respond to chemotherapy (e.g., a taxane therapy) based at least in part on the presence of a variant in the mammal's polycystic kidney disease gene 1 (PKD1) are provided. In addition, methods and materials involved in treating mammals having cancer (e.g., breast cancer) by administering an inhibitor of ubiquitin specific peptidase 2 (USP2) polypeptide activity (e.g., NSC-632839, a 2-cyano-pyrimidine, or a 2-cyano-triazine) in combination with another chemotherapeutic agent such as a taxane therapy are provided.

Abstract: Materials and methods related to using biomarkers for prediction of response to radiation therapy.

Abstract: Isolated HSD3B1 nucleic acid molecules that include a nucleotide sequence variant and nucleotides flanking the sequence variant are described, as are HSD3B1 allozymes. Methods for determining whether a subject contains an HSD3B1 sequence variant also are provided.

Abstract: Materials and methods for evaluating cellular response to therapeutic agents.

Abstract: Isolated CYP19A1 nucleic acid molecules that include a nucleotide sequence variant and nucleotides flanking the sequence variant are described, as well as CYP19A1 allozymes. Methods for determining the aromatase status of an individual also are provided, as are methods for determining if a subject is predisposed to certain clinical conditions.

Abstract: Isolated HSD3B1 nucleic acid molecules that include a nucleotide sequence variant and nucleotides flanking the sequence variant are described, as are HSD3B1 allozymes. Methods for determining whether a subject contains an HSD3B1 sequence variant also are provided.

Abstract: Isolated CYP19A1 nucleic acid molecules that include a nucleotide sequence variant and nucleotides flanking the sequence variant are described, as well as CYP19A1 allozymes. Methods for determining the aromatase status of an individual also are provided, as are methods for determining if a subject is predisposed to certain clinical conditions.