KLF14 and lymphoma: Of 27 KLF14-KO mice studied, 2 (7.4%) developed lung adenomas, 4 (14.8%) developed lymphoma in the spleens and 3 (11.1%) developed lymphoma in the lymph nodes (Fig. 1f), whereas no spontaneous tumour was identified in other organs such as the heart, liver, kidney, breast, colon and thymus.