Journal: bioRxiv
Article Title: Langerhans cells regulate immunity in adulthood by regulating postnatal dermal lymphatic development
doi: 10.1101/2024.07.12.603312
Figure Lengend Snippet: ( A-B ) 3 week old mice of indicated genotypes were treated intradermally in ear skin with indicated blocking antibodies for 2-3 ( A ) and with indicated cytokines for 2 ( B ) weeks before ear LECs were quantitated. Representative plots (left), absolute and relative LEC numbers (right). ( C, D ) Murine dermal LECs were cultured with or without LCs and with anti-PIGF, anti-VEGFR3, or anti-PIGF+anti-VEGFR3 before LECs were quantitated. Relative LEC numbers ( C ) and percentage that are DAPI+ ( D ). ( E-F ) mRNA expression of Pgf ( E ) and Vegfc ( F ) by sorted LCs, T cells, and keratinocytes (KCs) from 4 and 8 week old WT mice. Positive control (ctrl) was murine placenta. ( G ) LCs from 4 and 8 week old WT mice were cultured for 2 days and supernatant was assessed for VEGF-C by ELISA. ( H ) VEGF-C cell binding. LCs and other cells in the medium after a 48-hour crawl-out from 4 and 8 week old mouse epidermal sheets were incubated with his-tagged VEGF-C which was detected with anti-his tag. Representative histograms (left) and percentage of indicated cells that bound his-VEGF-C (right). ( I ) Ear skin LECs in 8 week old WT and CCR7 KO mice were quantitated. Percentage (left) and number of LECs (right). Each symbol represents one mouse. Bars represent mean and error bars s.e.m. *p<0.05, **p<0.01, ***p<0.001, ****p<0.0001 using two-tailed paired ( A , left) or unpaired Student’s t-test ( A , right, B-I ). Mice per condition: n= 4 ( A ), 4-6 ( B ), 4-5 ( C-D ), 3-5 ( E-F ), 5 ( G ), 5-6 ( H ), 6 ( I ) and data are from 2 of multiple similar experiments ( H ) and 3 ( A,C-F ), 4 ( G, I ) and 5 ( B ) independent experiments.
Article Snippet: Culture supernatants were analyzed for VEGF-C using a VEGF-C ELISA kit (CUSABIO, #CSB-E07361M, Houston, TX).
Techniques: Blocking Assay, Cell Culture, Expressing, Positive Control, Enzyme-linked Immunosorbent Assay, Binding Assay, Incubation, Two Tailed Test