Methods for prevention or inhibition of the growth or metastasis of cancer cells in a subject are disclosed. One method comprises the step of administering to the subject a therapeutically effective amount of an antibody to the chemokine CXCL13 and/or the chemokine receptor CXCR5. Another method comprises the step of administering to the subject a therapeutically effective amount of an expression vector that expresses an antibody to the chemokine CXCL13 and/or the chemokine receptor CXCR5.
