The role of beta-endorphin in cutaneous inflammation

β-内啡肽在皮肤炎症中的作用

• 批准号: 9325295
• 负责人: Whitney Silkworth
• 金额: $ 3.16万
• 依托单位: HARVARD MEDICAL SCHOOL
• 依托单位国家: 美国
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9325295
• 关键词: Acute; Adverse effects; Affect; American; Analgesics; Animal Model; Animals; Anti-Inflammatory Agents; Anti-inflammatory; Antibodies; Atopic Dermatitis; Binding; Blood - brain barrier anatomy; Bone Marrow Transplantation; Carcinogens; Cell Count; Cells; Chronic; Cleaved cell; Corticotropin; Cutaneous; DNA Damage; Data; Denervation; Disease; Dose; Edema; Environment; Environmental Carcinogens; Flow Cytometry; Hematopoiesis; Human body; Immune; Immunophenotyping; Impairment; Infection; Inflammation; Inflammatory; Inflammatory Response; Injection of therapeutic agent; Injury; Knockout Mice; Mediating; Melanins; Modeling; Morphine; Mus; Nerve Fibers; Opioid; Opioid Receptor; Organ; Pathway interactions; Peptides; Peripheral; Peripheral Nerves; Peripheral Nervous System; Pharmacological Treatment; Pharmacology; Phenotype; Physiological; Pigmentation physiologic function; Pituitary Gland; Plasma; Population; Predisposition; Pro-Opiomelanocortin; Production; Psoriasis; Role; Signal Pathway; Signal Transduction; Site; Skin; Skin Pigmentation; Skin tanning; Source; Sunburn; Surgical incisions; Techniques; Testing; Thinness; Topical application; UV Radiation Exposure; UV induced; Ultraviolet B Radiation; Ultraviolet Rays; Up-Regulation; Yeasts; addiction; alpha-Melanocyte stimulating hormone; beta-Endorphin; clinically relevant; endogenous opioids; experience; functional loss; irradiation; keratinocyte; mouse model; opioid use; prevent; receptor; reconstitution; response

Project Summary The skin is the largest organ of the human body and serves as a barrier against the environment. One of the most common environmental insults to the skin is ultraviolet radiation (UVR), a ubiquitous carcinogen. Cutaneous UVB exposure initiates the pigmentation cascade, with the upregulation of pro- opiomelanocortin (POMC) in epidermal keratinocytes. POMC is post-translationally cleaved to yield melanocortin peptides essential for stimulating production of protective melanin. Interestingly, cleavage of POMC also yields the endogenous opioid, β-endorphin (β-end), leading to a systemic increase in plasma levels of β-end that is sufficient to cause `tanning addiction' in mice. Β-end is an endogenous opioid that binds to the µ-opioid receptor (µ-OPR) expressed in the central and peripheral nervous systems (CNS, PNS). Though the analgesic effects of opioids are well established, a role in suppressing inflammation has been demonstrated in animal models. Our observation that loss of β-end or µ-OPR in mice results in a severe cutaneous inflammatory response to UVB suggests that opioids suppress inflammation in the skin. We hypothesize that UVR-induced β-end may have acute beneficial effects. This proposal will elucidate the contribution of both the local, cutaneous effects, and the global, systemic, effects of opioid signaling on cutaneous inflammation. Aim 1 will establish the experimental `sunburn' conditions to study the role of opioids in cutaneous inflammation using mice with and without functioning opioid signaling. In addition to studying the role of β-end after UVR, we will determine if β-end suppresses cutaneous inflammation in models of cutaneous inflammatory conditions, such as atopic dermatitis and psoriasis. Lastly, using histopathological analysis and flow cytometry techniques, we will characterize the local inflammatory response in β-end KO, µ-OPR KO, and C57BL6 mice to identify contributing factors to the cutaneous phenotype. In Aim 2 we will explore the mechanism by which β-end exerts its anti-inflammatory effects. We hypothesize that keratinocyte-derived β-endorphin acts on immune cells and peripheral nerve fibers to suppress inflammation. Using the murine model, we will immunophenotype opioid-deficient mice and control mice to determine differential numbers of immune cells in baseline and UV-exposed conditions. Next, using bone marrow transplantation, we will determine if expression of µ-OPR on immune cells is sufficient to affect the cutaneous inflammatory response to UVR. Lastly, to distinguish between potential contributions of the CNS and PNS to the anti-inflammatory effects of opioids, we will exploit pharmacological manipulation of the opioid signaling pathway. Combined, these studies may reveal a clinically relevant application and mechanism of topically-applied, peripherally-acting opioids as anti-inflammatory treatments for several cutaneous inflammatory conditions.

项目总结

项目成果

Characteristics of mental health implications and plasma metabolomics in patients recently recovered from COVID-19.

• DOI: 10.1038/s41398-021-01426-3
• 发表时间: 2021-05-21
• 期刊: Translational psychiatry
• 影响因子: 6.8
• 作者: Yang L;Zhou M;Li L;Luo P;Fan W;Xu J;Chen Q;Pan F;Lei P;Zheng C;Jin Y
• 通讯作者: Jin Y

Five new amicoumacins isolated from a marine-derived bacterium Bacillus subtilis.

• DOI: 10.3390/md10020319
• 发表时间: 2012-02
• 期刊: Marine drugs
• 影响因子: 5.4
• 作者: Li Y;Xu Y;Liu L;Han Z;Lai PY;Guo X;Zhang X;Lin W;Qian PY
• 通讯作者: Qian PY

α-Lipoic acid attenuates vascular calcification via reversal of mitochondrial function and restoration of Gas6/Axl/Akt survival pathway.

• DOI: 10.1111/j.1582-4934.2011.01294.x
• 发表时间: 2012-02
• 期刊: Journal of cellular and molecular medicine
• 影响因子: 5.3
• 作者: Kim H;Kim HJ;Lee K;Kim JM;Kim HS;Kim JR;Ha CM;Choi YK;Lee SJ;Kim JY;Harris RA;Jeong D;Lee IK
• 通讯作者: Lee IK

Persistence of SARS-CoV-2-specific antibodies in COVID-19 patients.

• DOI: 10.1016/j.intimp.2020.107271
• 发表时间: 2021-01
• 期刊: International immunopharmacology
• 影响因子: 5.6
• 作者: Wang Y;Li J;Li H;Lei P;Shen G;Yang C
• 通讯作者: Yang C

Predicting delirium and the effects of medications in hospitalized COVID-19 patients using machine learning: A retrospective study within the Korean Multidisciplinary Cohort for Delirium Prevention (KoMCoDe).

• DOI: 10.1177/20552076231223811
• 发表时间: 2024-01
• 期刊: DIGITAL HEALTH
• 影响因子: 3.9
• 作者: Lee, So Hee;Hur, Hyun Jung;Kim, Sung Nyun;Ahn, Jang Ho;Ro, Du Hyun;Hong, Arum;Park, Hye Yoon;Choe, Pyoeng Gyun;Kim, Back;Park, Hye Youn
• 通讯作者: Park, Hye Youn