The present disclosure is directed to methods of treating or ameliorating various conditions by the administration of a BCN057, BCN512 or analogs of these compounds. The compounds can be used to reduce tumor burden in cancers, including pancreatic cancer and gastrointestinal (GI) cancer. The compounds can also be used to protect against chemotherapy induced toxicity to the GI tract. Further, they can be used to treat fibrosis and various inflammatory conditions. Analogs of BCN057 and BCN512 are also described.