{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T23:02:12Z","timestamp":1789599732428,"version":"build-2803163510"},"reference-count":35,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2022,2,18]],"date-time":"2022-02-18T00:00:00Z","timestamp":1645142400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["anatomypubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Developmental Dynamics"],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Initial lymphatic vessels do not have a continuous basement membrane. Therefore, the ability of lymphatic endothelial cells (LECs) to produce extracellular matrix (ECM) has received little attention. Untreated lymphedema is a chronic disease that progresses to massive fibrosclerosis in advanced stages. Expansion of the intercellular space and fibrosclerosis cause hypoxia, which also affects the LECs.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We studied the expression of genes in human LECs in vitro by RNA sequencing, analyzed the effects of hypoxia (1% O<jats:sub>2<\/jats:sub>) vs. normoxia (21% O<jats:sub>2<\/jats:sub>), and focused on ECM genes. LECs express fibrillin\u20101 and many typical components of a basement membrane such as type IV, VIII, and XVIII collagen, laminin \u03b21, \u03b22, and \u03b14, perlecan, and fibronectin. Under hypoxia, we found significant upregulation of expression of genes controlling hydroxylation of procollagen (PLOD2, P4HA1), and also cross\u2010linking, bundling, and stabilization of collagen fibrils and fibers. Also striking was the highly significant downregulation of elastin expression, whereas fibulin\u20105, which controls the assembly of tropoelastin monomers, was upregulated under hypoxia. In the dermis from genital lymphedema, we observed significant PLOD2 expression in initial lymphatics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Overall, hypoxia results in the picture of a dysregulated ECM production of LECs, which might be partly responsible for the progression of fibrosclerosis in lymphedema.<\/jats:p><\/jats:sec>","DOI":"10.1002\/dvdy.460","type":"journal-article","created":{"date-parts":[[2022,2,8]],"date-time":"2022-02-08T22:08:21Z","timestamp":1644358101000},"page":"227-238","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Control of the extracellular matrix by hypoxic lymphatic endothelial cells: Impact on the progression of lymphedema?"],"prefix":"10.1002","volume":"252","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8337-2296","authenticated-orcid":false,"given":"J\u00f6rg","family":"Wilting","sequence":"first","affiliation":[{"name":"Abteilung f\u00fcr Anatomie und Zellbiologie Universit\u00e4tsmedizin G\u00f6ttingen, UMG  G\u00f6ttingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gunther","family":"Felmerer","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Allgemein\u2010, Viszeral und Kinderchirurgie, Scherpunkt Plastische und \u00c4sthetische Chirurgie Universit\u00e4tsmedizin G\u00f6ttingen, UMG  G\u00f6ttingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00fcrgen","family":"Becker","sequence":"additional","affiliation":[{"name":"Abteilung f\u00fcr Anatomie und Zellbiologie Universit\u00e4tsmedizin G\u00f6ttingen, UMG  G\u00f6ttingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,2,18]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102133.1992.tb08399.x"},{"issue":"4","key":"e_1_2_9_3_1","first-page":"173","article-title":"Changes of tissue fluid hyaluronan (hyaluronic acid) in peripheral lymphedema","volume":"31","author":"Liu NF","year":"1998","journal-title":"Lymphology"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/1535370216688570"},{"key":"e_1_2_9_5_1","first-page":"266","volume-title":"Lehrbuch Lymphologie","author":"Kaiserling E","year":"2010"},{"key":"e_1_2_9_6_1","first-page":"111","volume-title":"Lymphologica, Jahresband 1989; 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