text: Yo, check it out, I got a story to tell
  'Bout the bone marrow, where things dwell
  New molecular approaches, they be movin' quick
  Reveal the info 'bout its composition, real slick
  
  Culture studies show functions, possibilities arise
  Molecules in the marrow, they ain't no disguise
  But yo, this organ, it's complex, a crazy maze
  Interactions between cells, not an easy phase
  
  Culture can't model the behavior, that's a fact
  It falls short, can't fully unpack
  Post-translational modifications, proteins in a twist
  Cellular and extracellular, they got a massive list
  
  The environment, it plays a major role
  Influencing proteins, taking control
  So we need in vivo studies, that's the key
  To truly understand this organ, can't you see?