Lawrie CH., Gal S., Dunlop HM., Pushkaran B., Liggins AP., Pulford K., Banham AH., Pezzella F., Boultwood J., Wainscoat JS., Hatton CSR., Harris AL.

Circulating nucleic acids have been shown to have potential as non-invasive diagnostic markers in cancer. We therefore investigated whether microRNAs also have diagnostic utility by comparing levels of tumour-associated MIRN155 (miR-155), MIRN210 (miR-210) and MIRN21 (miR-21) in serum from diffuse large B-cell lymphoma (DLBCL) patients (n = 60) with healthy controls (n = 43). Levels were higher in patient than control sera (P = 0.009, 0.02 and 0.04 respectively). Moreover, high MIRN21 expression was associated with relapse-free survival (P = 0.05). This is the first description of circulating microRNAs and suggests that microRNAs have potential as non-invasive diagnostic markers for DLBCL and possibly other cancers.

Detection of elevated levels of tumour-associated microRNAs in serum of patients with diffuse large B-cell lymphoma.

Lawrie CH., Gal S., Dunlop HM., Pushkaran B., Liggins AP., Pulford K., Banham AH., Pezzella F., Boultwood J., Wainscoat JS., Hatton CSR., Harris AL.

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