from Section 4 - Fertility Preservation Strategies in the Male
Published online by Cambridge University Press: 27 March 2021
Over the past three decades survival rate in children and adolescents with cancer has doubled as a result of significant improvements in medical treatments [1]. Since more than 80% of children and adolescents diagnosed with cancer will survive ≥5 years beyond their diagnosis [2], one of the important concerns are the adverse effects of chemo- and radiotherapy on gonadal hormonal function and spermatogenesis [1]. Moreover, 80% of cancer survivors are intending to father their genetically own children, with only 10% acceptance of using donor sperm [3]. This scenario renders fertility preservation a pivotal aspect for the treatment of cancer in prepubertal boys and adolescents.
Spermatogonia are extremely susceptible to damage induced by chemo- or radiotherapy [4], and the extent of insult depends on the regimen and the cumulative dosage of treatments used [2]. Consequently, restoration of fertility following childhood cancer treatment will be dependent on the survival of sufficient numbers of spermatogonial stem cells (SSCs). In primates these can be recognized as the type Adark subtype which acts as regenerative reserve [4].
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