GnRH Receptor

Opigolix, a Gonadotropin-releasing hormone receptor antagonist, treats hormone-dependent conditions by inhibiting the actions of gonadotropin-releasing hormone (GnRH).

AG 045572 is a potent GnRH receptor antagonist that inhibits the GnRH receptor in humans and rats with Ki values of 6.0 nM and 3.8 nM, respectively.AG 045572 is metabolized by CYP3A and inhibits testosterone.

Linzagolix choline is an orally available non-peptide gonadotropin-releasing hormone (GnRH) antagonist. It can be used to study pain associated with uterine fibroids and endometriosis.

Deslorelin acetate(57773-65-6 free base) is a gonadotropin releasing hormone super-agonist (GnRH agonist)

Triptorelin acetate(57773-63-4 free base) (CL 118,532) is used as a GnRH agonist. It decreases pituitary secretion of gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH) by causing constant stimulation of the pituitary. Triptorelin acetate(57773-63-4 free base) may be used in the treatment of hormone-responsive cancers such as breast cancer or prostate cancer, precocious puberty, estrogen-dependent conditions, and assisted reproduction.

Degarelix acetate is a competitive and reversible antagonist of gonadotropin-releasing hormone receptor (GnRHR) .

Buserelin Acetate (57982-77-1 free base) (Buserelin Acetate) is an agonist of gonadotropin-releasing hormone receptor(GnRHR).

Lecirelin acetate is a synthetic GnRH (gonadotropin releasing hormone) analogue which shows a great efficacy in the treatment of bovine ovarian follicular cysts.

LGnRH-III, lamprey acetate is an evolutionarily conserved member of the GnRH family, can stimulate the secretion of gonadotropins, it stimulates the secretion of both luteinizing and follicle-stimulating hormones.

Cetrorelix diacetate (NS-75A) is is a gonadotropin-releasing hormone antagonist. It works by blocking the action of GnRH upon the pituitary, thus rapidly suppressing the production and action of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

Alarelin Acetate is a synthetic GnRH agonist which can directly inhibit proliferation and DNA synthesis of rat GSMC through GnRH receptors.

Ganirelix Acetate is a gonadotropin-releasing hormone (GnRH) receptor antagonist

Histrelin acetate is a nonapeptide analog of gonadotropin-releasing hormone (GnRH) with added potency. It acts on particular cells of the pituitary gland called gonadotropes when present in the bloodstream. Histrelin stimulates these cells to release luteinizing hormone and follicle-stimulating hormone. Thus it is considered a gonadotropin-releasing hormone agonist or GnRH agonist.

(R)-Elagolix (NBI-56418) is a short-acting, nonpeptide, GnRH antagonist with an IC50 and Ki of 0.25 and 3.7 nM, respectively. administered orally, that unlike injectable depot GnRH agonists and antagonists, produces a dose-dependent suppression of ovarian estrogen production, that is, from partial suppression at lower doses to full suppression at higher doses.

Relugolix (RVT-601) is an orally available, non-peptide gonadotropin-releasing hormone (GnRH or luteinizing hormone-releasing hormone (LHRH)) antagonist, with potential antineoplastic activity. Relugolix competitively binds to and blocks the GnRH receptor in the anterior pituitary gland, which both prevents GnRH binding to the GnRH receptor and inhibits the secretion and release of both luteinizing hormone (LH) and follicle stimulating hormone (FSH). In males, the inhibition of LH secretion prevents the release of testosterone from Leydig cells in the testes. Since testosterone is required to sustain prostate growth, reducing testosterone levels may inhibit hormone-dependent prostate cancer cell proliferation.

Elagolix sodium (NBI-56418 sodium) is a GnRH receptor (GnRHR) antagonist ( IC50 and Ki of 0.25 and 3.7 nM, respectively).

Cetrorelix Acetate is gonadotropin-releasing hormone (GnRH) receptor antagonist with an IC50 of 1.21 nM.

Goserelin acetate (Fertilan) is a synthetic long-acting agonist of gonadotropin-releasing hormone, used in treatments of cancer.

Abarelix (PPI 149) is a potent gonadotrophin-releasing hormone (GnRH) antagonist, which is used for prostate cancer treatment.

Linzagolix is a small-molecule, non-peptide, orally active gonadotropin-releasing hormone antagonist (GnRH antagonist) which is under development by Kissei Pharmaceutical and ObsEva for the treatment of uterine fibroids, endometriosis, and adenomyosis. As of December 2020, it is under review for approval for uterine fibroids, is in phase III clinical trials for endometriosis, and is in phase II clinical studies for adenomyosis.

Phoenixin-14 (PNX-14), an active endogenous isoform, induces an anxiolytic effect by activating the AHA GnRH system in mice and protects against ischemia/reperfusion-induced cytotoxicity in microglia [1] [2].

GnRH-R antagonist 1 (Compound 21a), is an orally active, membrane-permeable agent with a high binding affinity (IC50=0.57 nM) and potent in vitro antagonistic efficacy (IC50=2.18 nM). It is utilized in research focused on advanced prostate cancer and the prevention of premature LH surges [1].

Nafarelin acetate(76932-56-4 free base) (RS-94991-298) is a GnRH agonist that acts as an analog of GnRH. Nafarelin acetate(76932-56-4 free base) causes a decrease in the pituitary secretion of gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH). It may be used in the treatment of estrogen-dependent conditions.

Luteinizing hormone-releasing hormone (LHRH) is a neuropeptide produced in the hypothalamus that plays a pivotal role in regulating reproduction and has applications in cancer research [1].

Degarelix is a competitive and reversible gonadotropin-releasing hormone receptor (GnRHR) antagonist.

Kisspeptin 234 acetate(1145998-81-7 free base) is a Kisspeptin receptor (KISS1, GPR54) antagonist; a Kisspeptin-10 analogue. It inhibits the stimulation of inositol phosphate (IP) (IC50 = 7 nM) and the release of gonadotropin-releasing hormone (GnRH) by kisspeptin-10.

BAY-784 is a gonadotropin-releasing hormone receptor (GnRH-R) antagonist (IC50s: 21 and 24 nM for human and rat GnRH-R).

Relugolix-d6 is a deuterated compound of Relugolix. Relugolix has a CAS number of 737789-87-6. Relugolix is an orally available, non-peptide gonadotropin-releasing hormone (GnRH or luteinizing hormone-releasing hormone (LHRH)) antagonist, with potential antineoplastic activity. Relugolix competitively binds to and blocks the GnRH receptor in the anterior pituitary gland, which both prevents GnRH binding to the GnRH receptor and inhibits the secretion and release of both luteinizing hormone (LH) and follicle stimulating hormone (FSH). In males, the inhibition of LH secretion prevents the release of testosterone from Leydig cells in the testes. Since testosterone is required to sustain prostate growth, reducing testosterone levels may inhibit hormone-dependent prostate cancer cell proliferation.

[MePhe7]-Neurokinin B is a neurokinin NK-3 receptor (NK3R) agonist, exhibiting a potent agonistic activity with an IC50 value of 3 nM. It acts as a potential regulator of pulsatile gonadotropin-releasing hormone (GnRH) secretion through the activation of NK3R [1].

Ozarelix is a fourth generation GnRH antagonist, induces apoptosis in hormone refractory androgen receptor negative prostate cancer cells modulating expression and activity of death receptors. Mechanistically, LHRH antagonists exert rapid inhibition of luteinizing hormone and follicle stimulating hormone with an accompanying rapid decrease in sex hormones and would therefore be expected to be effective in a variety of hormonally dependent disease states including ovarian cancer, prostate cancer, BPH, infertility, uterine myoma and endometriosis. BPH is a non-cancerous enlargement of the prostate that is caused by testosterone. Unlike LHRH agonists, ozarelix has the potential to reduce testosterone just enough to reduce both prostate size and symptoms without the severe side effects associated with a reduction in testosterone.

[D-Glp1,D-Phe2,D-Trp3,6]-LH-RH, a luteinizing hormone-releasing hormone (LHRH) analogue, acts as a gonadotropin-releasing hormone (GnRH) receptor antagonist [1].

NBI-42902 is a potent inhibitor of peptide radioligand binding to the human GnRH receptor (K(i) = 0.56 nm). Tritiated NBI-42902 binds with high affinity (K(d) = 0.19 nm) to a single class of binding sites and can be displaced by a range of peptide and nonpeptide GnRH receptor ligands. In vitro experiments demonstrate that NBI-42902 is a potent functional, competitive antagonist of GnRH stimulated IP accumulation, Ca(2+) flux, and ERK1/2 activation. It did not stimulate histamine release from rat peritoneal mast cells. Finally, it is effective in lowering serum LH in castrated male macaques after oral administration. Overall, these data provide a benchmark of pharmacological characteristics required for a nonpeptide GnRH antagonist to effectively suppress gonadotropins in humans and suggest that NBI-42902 may have clinical utility as an oral agent for suppression of the hypothalamic-pituitary-gonadal axis. (source: Endocrinology. 2007 Feb;148(2):857-67. Epub 2006 Nov 9.)

Dicetrorelix pamoate is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. GnRH induces the production and release of luteinizing hormone (LH) and follicle stimulating hormone (FSH) from the gonadotrophic cells of the anterior pituitary. Due to a positive estradiol (E2) feedback at midcycle, GnRH liberation is enhanced resulting in an LH-surge. This LH-surge induces the ovulation of the dominant follicle, resumption of oocyte meiosis and subsequently luteinization as indicated by rising progesterone levels. Cetrorelix competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner. Cetrorelix binds to the gonadotropin releasing hormone receptor and acts as a potent inhibitor of gonadotropin secretion. It competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner......

Zoptarelin doxorubicin, also known as AEZS-108, is an LHRH agonist. Zoptarelin doxorubicin is a peptide agonist of the gonadotropin releasing hormone-1 receptor (GnRH-1R) that is conjugated to the anthracycline antibiotic doxorubicin with potential antineoplastic activity. Zoptarelin doxorubicin binds to GnRH-1Rs, which may be highly expressed on endometrial and ovarian tumor cell membrane surfaces, and is internalized. Once inside the cell, the doxorubicin moiety of this agent intercalates into DNA and inhibits the topoisomerase II activity, which may result in the inhibition of tumor cell DNA replication and tumor cell proliferation

[D-Lys6]-LH-RH, a Luteinizing-hormone-releasing hormone (LHRH) analogue, serves as a GnRH receptor agonist [1].

Kisspeptin-54 is a peptide ligand of the orphan G protein-coupled receptor GPR54 (Kis = 1.81 and 1.45 nM for rat and human receptors, respectively).1 It is a 54 amino acid peptide encoded by the metastasis suppressor gene KISS-1. Kisspeptin-54 induces calcium mobilization in CHO-K1 cells expressing rat and human receptors (EC50s = 1.39 and 5.47 nM, respectively). It also induces arachidonic acid release in CHO cells expressing rat and human GPR54 in a concentration-dependent manner. Kisspeptin-54 (10-1,000 nM) inhibits insulin secretion from isolated mouse pancreatic β-cells in the presence of 2.8 mM, but not 11.1 mM, glucose.2 Kisspeptin-54 (1-5 nmol, i.c.v.) increases serum levels of luteinizing hormone (LH) and follicular stimulating hormone (FSH) in mice, an effect which is reversed by the gonadotropin releasing hormone (GNRH) antagonist acycline.3References1. Kotani, M., Detheux, M., Vandenbogaerde, A.L., et al. The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54. J. Biol. Chem. 276(37), 34631-34636 (2001).2. Vikman, J., and Ahrén, B. Inhibitory effect of kisspeptins on insulin secretion from isolated mouse islets. Diabetes Obes. Metab. 11(Suppl 4), 197-201 (2009).3. Gottsch, M.L., Cunningham, M.J., Smith, J.T., et al. A role for kisspeptins in the regulation of gonadotropin secretion in the mouse. Endocrinology 145(9), 4073-4077 (2004). Kisspeptin-54 is a peptide ligand of the orphan G protein-coupled receptor GPR54 (Kis = 1.81 and 1.45 nM for rat and human receptors, respectively).1 It is a 54 amino acid peptide encoded by the metastasis suppressor gene KISS-1. Kisspeptin-54 induces calcium mobilization in CHO-K1 cells expressing rat and human receptors (EC50s = 1.39 and 5.47 nM, respectively). It also induces arachidonic acid release in CHO cells expressing rat and human GPR54 in a concentration-dependent manner. Kisspeptin-54 (10-1,000 nM) inhibits insulin secretion from isolated mouse pancreatic β-cells in the presence of 2.8 mM, but not 11.1 mM, glucose.2 Kisspeptin-54 (1-5 nmol, i.c.v.) increases serum levels of luteinizing hormone (LH) and follicular stimulating hormone (FSH) in mice, an effect which is reversed by the gonadotropin releasing hormone (GNRH) antagonist acycline.3 References1. Kotani, M., Detheux, M., Vandenbogaerde, A.L., et al. The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54. J. Biol. Chem. 276(37), 34631-34636 (2001).2. Vikman, J., and Ahrén, B. Inhibitory effect of kisspeptins on insulin secretion from isolated mouse islets. Diabetes Obes. Metab. 11(Suppl 4), 197-201 (2009).3. Gottsch, M.L., Cunningham, M.J., Smith, J.T., et al. A role for kisspeptins in the regulation of gonadotropin secretion in the mouse. Endocrinology 145(9), 4073-4077 (2004).

Fertirelin, or fertirelin acetate, sold under the brand name Ovalyse, is a gonadotropin-releasing hormone agonist (GnRH agonist).

Kisspeptin 234 is a kisspeptin receptor (KISS1, GPR54) antagonist; kisspeptin-10 analog. Inhibits kisspeptin-10 stimulation of inositol phosphate (IP) (IC50 = 7 nM) and release of gonadotrophin-releasing hormone (GnRH).

Histrelin (Supprelin LA) acetate is a nonapeptide analog of gonadotropin-releasing hormone (GnRH) with added potency. It is considered a GnRH agonist. Histrelin is used in the treatment of hormone-sensitive cancers of the prostate in men and uterine fibroids in women.

Phoenixin-14 TFA (PNX-14) is a blood-brain barrier (BBB)-penetrable neuropeptide with anxiolytic, cardioprotective, and neuroprotective properties. It modulates pituitary gonadotrophin release by enhancing gonadotropin-releasing hormone (GnRH) receptor mRNA expression and promotes insulin secretion. Additionally, PNX-14 TFA protects against ischemia reperfusion (IR) injury in mice and combats oxidative stress by diminishing reactive oxygen species (ROS) and elevating glutathione (GSH) levels [1] [2] [3].

GnRH antagonist 2 (formula I) is a potent GnRH receptor antagonist with valuable applications in endometriosis research [1].

SKI2496 is a potent and orally bioavailableantagonist of Gonadotropin-Releasing Hormone Receptor (hGnRHR IC50 = 0.46 nM; max. LH inh. inh. (%, h)= 84%, 12h; LH inh. (24h) = 76%.). SKI2496 exhibits more selective antagonistic activity toward the human GnRH

Agonist of the NPFF1 receptor (IC50 = 0.7 nM for inhibition of forskolin-induced cAMP production). Homolog of gonadotropin-inhibitory hormone (GnIH); inhibits activity of gonadotropin-releasing hormone (GnRH) neurons.

TAK-683 acetate is a nonapeptide metastin analog and a potent full agonist of the KISS1 receptor (KISS1R), exhibiting IC 50 =170 pM and enhanced metabolic stability. This compound shows agonistic activities towards KISS1R, with EC 50 values of 0.96 nM and 1.6 nM for human and rat KISS1R, respectively. TAK-683 acetate effectively depletes GnRH in the hypothalamus and reduces plasma levels of FSH, LH, and testosterone in vivo, showcasing its potential for hormone-dependent prostate cancer research.

[D-Ala6]-LH-RH, a Luteinizing-hormone-releasing hormone (LHRH) analogue, functions as a gonadotropin-releasing hormone (GnRH) receptor agonist [1].

gonadotropin-releasing hormone (GnRH, LHRH) receptor antagonist,orally active