text: Yo, check it out, listen up, I got a story to tell
  'Bout VEGF and VEGFR, it's a tale you gotta dwell
  Both VEGF-A and Orf-virus VEGF-E, they bind real tight
  Activating VEGFR-2, shining bright in the night
  
  But hold up, there's a twist, only VEGF-A can bind
  VEGFR-1, it's a one-of-a-kind find
  To understand the differences, we made some mice
  Transgenic models, yo, this stuff is nice
  
  K14-driven VEGF-E mice, they got a boost
  Mature blood vessels, man, they really let loose
  But them K14-VEGF-A mice, they faced a plight
  Inflammation, oedema, it was a crazy sight
  
  Angiogenesis, lymphangiogenesis, vessels dilated
  K14-VEGF-A mice, they were obliterated
  But wait, we dug deeper, turned on the light
  VEGFR-1 signaling, it played a role, aight?
  
  K14-VEGF-A-tg/VEGFR-1 TK(-/-) mice, we brought 'em in
  Oedema decreased, inflammation wore a thin grin
  Macrophage-lineage cells, they didn't recruit
  VEGFR-1 involved, man, that's the truth
  
  So listen up, in this rap, I'm gonna say
  VEGFE might be better, it's the pro-angiogenic way
  Therapy in the making, it's a brand new start
  VEGFA step aside, VEGFE plays the part