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Abstract

Provided are methods of treating lung cancer in a patient in need thereof. The method includes administration to the patient a composition comprising a therapeutically effective amount of a compound that reduces the expression level of E3 ubiquitin-protein ligase MDM2. The compound in certain instances is a miR-660 miRNA, or a functional variant thereof. The patient in need of treatment in certain instances expresses miR-660 in a lung tissue sample or biological fluid sample at a level lower as compared to a control level derived from a subject or plurality of subjects that do not have lung cancer, or as compared to a control level derived from a lung cancer patient or plurality thereof, that have been given a favorable prognosis; expresses MDM2 at a higher level in a lung tissue sample or biological fluid sample as compared to a control level derived from a subject or plurality of subjects that do not have lung cancer, or as compared to a control level derived from a lung cancer patient or plurality thereof that have been given a favorable prognosis; and/or expresses p53 in a lung tissue sample or a biological fluid sample below a control level derived from a lung tumor tissue sample, or plurality thereof, or a biological fluid sample, or plurality thereof, obtained from a patient that has a favorable lung cancer prognosis; or a control level derived from a healthy subject.

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