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Published on: March 23, 2016
Growth hormone-releasing hormone receptor signaling in experimental ocular inflammation and neuroprotection
Ling-Ping Cen1, Tsz Kin Ng2, Wai Kit Chu3
1Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong Province, China.
Abstract:
Both inflammation and anti-inflammation are involved in the protection of retinal cells. Antagonists of the hypothalamic growth hormone-releasing hormone receptor (GHRHR) have been shown to possess potent anti-inflammatory properties in experimental disease models of various organs, some with systemic complications. Such effects are also found in ocular inflammatory and neurologic injury studies. In experimental models of mice and rats, both growth hormone-releasing hormone receptor agonists and antagonists may alleviate death of ocular neural cells under certain experimental conditions. This review explores the properties of growth hormone-releasing hormone receptor agonists and antagonists that lead to its protection against inflammatory responses induced by extrinsic agents or neurologic injures in ocular animal models.
Insights
Growth hormone-releasing hormone receptor (GHRHR) antagonists show anti-inflammatory effects, protecting retinal cells from injury. This review examines GHRHR
Area of Science:
- Ophthalmology
- Neuroscience
- Immunology
Background:
- Inflammation and anti-inflammatory processes are crucial for retinal cell survival.
- Hypothalamic growth hormone-releasing hormone receptor (GHRHR) antagonists exhibit anti-inflammatory properties in various experimental models.
- These effects extend to ocular inflammatory and neurological injury studies.
Purpose of the Study:
- To review the protective properties of GHRHR agonists and antagonists in ocular animal models.
- To explore how GHRHR modulation influences inflammatory responses and neural cell death in the eye.
- To understand the therapeutic potential of GHRHR targeting in ocular diseases.
Main Methods:
- Review of existing experimental studies in mice and rats.
- Analysis of data on GHRHR agonists and antagonists in ocular injury models.
- Examination of mechanisms underlying GHRHR's role in inflammation and neuroprotection.
Main Results:
- GHRHR antagonists demonstrate significant anti-inflammatory effects in ocular disease models.
- Both GHRHR agonists and antagonists can alleviate ocular neural cell death under specific conditions.
- Evidence suggests GHRHR modulation impacts inflammatory responses to extrinsic agents and neurological injuries.
Conclusions:
- GHRHR receptor modulation holds promise for protecting retinal cells.
- Targeting GHRHR may offer a novel therapeutic strategy for ocular inflammatory and neurological conditions.
- Further research into GHRHR agonists and antagonists is warranted for ophthalmic applications.

