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Lymphatic dysfunction drives inflammatory temporomandibular joint osteoarthritis (TMJOA) and pain

ABSTRACT: Lymphatic dysfunction drives inflammatory temporomandibular joint osteoarthritis (TMJOA) and pain

PROVIDER: PRJNA1254606 | ENA |

REPOSITORIES: ENA

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	SRR33291371_1.fastq.gz	Fastqsanger.gz
	SRR33291371_2.fastq.gz	Fastqsanger.gz

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Lymphatic dysfunction drives inflammatory temporomandibular joint osteoarthritis (TMJOA) and pain

Project description:Temporomandibular joint (TMJ) arthritis is a craniofacial disorder characterized by joint dysfunction and orofacial pain. Despite of its established roles in fluid and immune regulation, lymphatic regulation, and function in TMJ remain unknown. Using genetic report mouse, uDISCO tissue clearing, and 3D volume imaging, we defined lymphatic vessel morphology, structure, anatomic location in adult mouse TMJ. We demonstrate in a mouse model of TMJ osteoarthritis (TMJOA) that arthritis induces inflammatory lymphangiogenesis and leads to impaired synovial lymphatic functions, including decreases in synovial influx and lymph node fluid drainage. To establish the causative link between lymphatic remodeling and TMJOA, we performed lymphatic loss- and gain-of-function studies. Lymphatic deficiency exacerbated cartilage defects, bone loss, synovitis, synovial fibrosis, and pain behaviors in TMJOA mice. Conversely, lymphatic activation via a hydrogel-mediated VEGF-C delivery to TMJ reduced TMJ pain, inflammation, and arthritis-like pathogenesis. Therefore, we defined lymphatic structure in TMJ and found that lymphatic dysfunction drives TMJOA pathogenesis and pain, suggesting its potential as a therapeutic target.

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Mapping cell diversity and position in temporomandibular joint osteoarthritis with pain at single cell resolution

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Project description:To investigate differentially expressed miRNAs in synovium of human temporomandibular joint osteoarthritis (TMJOA), we performed miRNA high-throughput sequencing in synovium of human TMJOA.

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Project description:Temporomandibular joint osteoarthritis (TMJ-OA), a subtype of temporomandibular joint dysfunction (TMD), is characterized by progressive cartilage degradation, subchondral bone erosion, and chronic pain. Although there has been extensive research on TMJ-OA, its etiology remains unknown. Age, hormonal factors, and excessive mechanical stress on the TMJ are proposed risk factors for TMJ-OA. Using microarrays, we discovered two disease susceptibility genes that have been suggested to be involved in the pathogenic mechanism of TMJ-OA.

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