Successful xenografting of cryopreserved primary pancreatic cancers

Claudio Sorio, Antonio Bonora, Simonetta Orlandini, Patrick S. Moore, Paola Capelli, Patrizia Cristofori, Gianni Dal Negro, Piernicola Marchiori, Giovanni Gaviraghi, Massimo Falconi, Paolo Pederzoli, Giuseppe Zamboni, Aldo Scarpa

Research output: Contribution to journalArticlepeer-review


In order to assess the suitability of cryopreserved neoplastic tissues for xenografting into nude (nu/nu) mice, we compared the take rate in 28 samples of pancreatic ductal carcinoma. Eleven fresh samples were implanted in nu/nu mice, and 17 were frozen in cryopreserving solution and implanted at a later time. All samples were examined for the presence of neoplastic tissue in cryostat sections. A total of 15 tumors grew in the animals; five from the freshly implanted samples and ten from those cryopreserved. Ten xenografted tumors were characterized for alterations in p53, K-ras, and p16 genes, which were found in six, eight, and nine cases, respectively. Our results demonstrate that the take rate for xenografting is comparable between cryopreserved and fresh tissue samples. The procedure allows for the exchange of tumor material between institutions and permits the establishment of centralized facilities for the storage of an array of different primary tumor samples suitable for the production of in vivo models of cancers.

Original languageEnglish
Pages (from-to)154-158
Number of pages5
JournalVirchows Archiv
Issue number2
Publication statusPublished - 2001


  • Ductal carcinoma
  • K-ras
  • P16
  • P53
  • Pancreas
  • Tissue bank
  • Xenograft

ASJC Scopus subject areas

  • Pathology and Forensic Medicine


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