PMID- 18346994 OWN - NLM STAT- MEDLINE DCOM- 20080606 LR - 20220409 IS - 1460-2350 (Electronic) IS - 0268-1161 (Linking) VI - 23 IP - 5 DP - 2008 May TI - Characterization of sperm chromatin quality in testicular cancer and Hodgkin's lymphoma patients prior to chemotherapy. PG - 1044-52 LID - 10.1093/humrep/den081 [doi] AB - BACKGROUND: Although the incidences of testicular cancer and Hodgkin's lymphoma have increased in young men over the past decade, combination chemotherapy has improved survival. As fertility is of importance to these patients, characterization of sperm chromatin structure is needed. We assessed sperm chromatin in testicular cancer and Hodgkin's lymphoma patients prior to chemotherapy, in comparison with control community and idiopathic infertile volunteers. METHODS: DNA damage was assessed with the sperm chromatin structure assay (SCSA), terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) and comet assays; reactive thiols (SH) and DNA compaction were determined with the monobromobimane (mBBr) and chromomycin A3 (CMA3) assays, respectively. RESULTS: Both testicular cancer (37%) and Hodgkin's lymphoma (81%) patients had normospermic samples with increased DNA damage, compared with controls. Cancer patients also had higher reactive thiols and CMA3 staining, indicating low DNA compaction. CONCLUSIONS: Sperm DNA integrity and compaction were affected in testicular cancer and Hodgkin's lymphoma patients prior to chemotherapy. Although SCSA, TUNEL and comet assays all detected DNA damage, the latter was optimal for use in cancer patients. A combination of the comet assay with tests that evaluate sperm DNA compaction, such as flow cytometry-based CMA3 and mBBr assays, is a reliable strategy to characterize sperm chromatin quality in cancer patients at the time of sperm banking. FAU - O'Flaherty, C AU - O'Flaherty C AD - Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada. FAU - Vaisheva, F AU - Vaisheva F FAU - Hales, B F AU - Hales BF FAU - Chan, P AU - Chan P FAU - Robaire, B AU - Robaire B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080317 PL - England TA - Hum Reprod JT - Human reproduction (Oxford, England) JID - 8701199 RN - 0 (Bridged Bicyclo Compounds) RN - 0 (Chromatin) RN - DVW027E7NL (Chromomycin A3) RN - V23UK0CYXL (monobromobimane) SB - IM MH - Adult MH - Bridged Bicyclo Compounds MH - Chromatin/*ultrastructure MH - Chromomycin A3 MH - Cohort Studies MH - Comet Assay MH - *DNA Damage MH - Flow Cytometry MH - Hodgkin Disease/*physiopathology MH - Humans MH - In Situ Nick-End Labeling MH - Infertility, Male/physiopathology MH - Male MH - Middle Aged MH - Sensitivity and Specificity MH - Spermatozoa/*ultrastructure MH - Testicular Neoplasms/*physiopathology EDAT- 2008/03/19 09:00 MHDA- 2008/06/07 09:00 CRDT- 2008/03/19 09:00 PHST- 2008/03/19 09:00 [pubmed] PHST- 2008/06/07 09:00 [medline] PHST- 2008/03/19 09:00 [entrez] AID - den081 [pii] AID - 10.1093/humrep/den081 [doi] PST - ppublish SO - Hum Reprod. 2008 May;23(5):1044-52. doi: 10.1093/humrep/den081. Epub 2008 Mar 17.