Leiomyoma, EpithelioidSex Cord-Gonadal Stromal TumorsGranulosa Cell TumorStromal CellsGiant Cell Tumor of BoneGiant Cell TumorsNeoplasms, Germ Cell and EmbryonalGranular Cell TumorSpinal CordTesticular NeoplasmsSertoli Cell TumorLeydig Cell TumorGerminomaMesenchymal Stromal CellsSpinal Cord InjuriesBone Marrow CellsSeminomaTumor Markers, BiologicalSertoli-Leydig Cell TumorCell Line, TumorEndometriumImmunohistochemistryTumor Necrosis Factor-alphaCells, CulturedEndodermal Sinus TumorAdenoma, Islet CellTumor BurdenCell DifferentiationCoculture TechniquesCell ProliferationUmbilical CordRNA, MessengerBone NeoplasmsNeoplasms, ExperimentalOvarian NeoplasmsTumor Microenvironment