Endocrine therapy overview

Endocrine therapy is a medical method that treats diseases by regulating hormone levels in the body. It is mainly used for hormone-dependent tumors (such as breast cancer, prostate cancer) and endocrine system diseases (such as diabetes, thyroid dysfunction). Its core is to inhibit or supplement specific hormones through drug or surgical intervention to control disease progression. The main contents include:Treatment principle(hormone regulatory mechanism),Applicable diseases(such as estrogen blockade for breast cancer),Treatment(drugs, surgeries, etc.) andCommon medicines(such as tamoxifen, leuprolide). The following will be developed in layers.

Principles and mechanisms of endocrine therapy

The core of endocrine therapy ishormone dependence. For example, some breast cancer cells rely on estrogen to grow. Drugs that block estrogen receptors (such as tamoxifen) or reduce estrogen production (such as aromatase inhibitors) can inhibit tumor development. Similarly, androgen deprivation therapy (ADT) is commonly used for prostate cancer. This treatment hasStrong targetingandSide effects are relatively minorcharacteristics, but requires long-term medication and monitoring of hormone levels. Its scientific basis is based on in-depth research on endocrine signaling pathways, such as the gonadotropin-releasing hormone (GnRH) mechanism discovered by Nobel Prize winner Roger Guillemin.

Applicable diseases and clinical scenarios

Endocrine therapy is mainly suitable for two types of diseases:malignant tumorandEndocrine disorders. In breast cancer, about 70% of patients are hormone receptor positive and need to receive endocrine therapy; patients with prostate cancer rely on androgen blockade. In non-tumor fields, patients with diabetes use insulin to regulate blood sugar, and patients with hypothyroidism supplement levothyroxine. Clinical selection needs to be combined withPathological classificationandindividual differences, such as different medication regimens for premenopausal and postmenopausal breast cancer patients (aromatase inhibitors vs SERMs).

Treatment methods and commonly used drugs

Treatment options includedrug therapyandSurgery/radiation therapy. Medications are divided into three categories:hormone antagonist(such as tamoxifen),hormone synthesis inhibitors(such as letrozole) andhormone replacement agents(such as insulin). Surgery includes ovarian castration (for breast cancer) or testicle removal (for prostate cancer). The following table lists some common drugs and manufacturers:

Summary and Notes

Endocrine therapy isprecision medicineA typical representative, but attention should be paid to the side effects of long-term use (such as osteoporosis, hot flashes) and drug resistance issues. Patients need to regularly review their hormone levels and make adjustments to their lifestyle. In the future, with a deeper understanding of hormone pathways, such as CDK4/6 inhibitors and endocrine combination therapy, the efficacy will be further improved. Quote sources:National Cancer Institute (NCI),"Lancet·Oncology"and Endocrine Society clinical guidelines.