Publications by authors named "M Isabel Perez-Morgado"

Lung cancer is the leading cause of cancer-related death worldwide. Its late diagnosis and consequently poor survival make necessary the search for new therapeutic targets. The mitogen-activated protein kinase (MAPK)-interacting kinase 1 (MNK1) is overexpressed in lung cancer and correlates with poor overall survival in non-small cell lung cancer (NSCLC) patients.

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Lung cancer is one of the leading causes of death worldwide and the most common of all cancer types. Histone acetyltransferase 1 (HAT1) has attracted increasing interest as a potential therapeutic target due to its involvement in multiple pathologies, including cancer. Aptamers are single-stranded RNA or DNA molecules whose three-dimensional structure allows them to bind to a target molecule with high specificity and affinity, thus making them exceptional candidates for use as diagnostic or therapeutic tools.

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Breast cancer is the most commonly diagnosed and leading cause of cancer death among women worldwide. Mitogen-activated protein kinase-interacting kinases (MNKs) promote the expression of several oncogenic proteins and are overexpressed in several types of cancer. In human cells, there are four isoforms of MNKs.

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Vaccinia-related kinase (VRK) 1 is a serin/threonine kinase that plays an important role in DNA damage response (DDR), phosphorylating some proteins involved in this process such as 53BP1, NBS1 or H2AX, and in the cell cycle progression. In addition, VRK1 is overexpressed in many cancer types and its correlation with poor prognosis has been determined, showing VRK1 as a new therapeutic target in oncology. Using in vitro selection, high-affinity DNA aptamers to VRK1 were selected from a library of ssDNA.

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Article Synopsis
  • - MAP kinase interacting kinases (MNKs), specifically the MNK1b isoform, play a crucial role in cancer development by phosphorylating the eukaryotic initiation factor 4E (eIF4E), which is important for oncogenic transformation
  • - In a study of 69 breast tumor samples, both MNK1 isoforms (MNK1a and MNK1b) showed significantly increased expression in tumors compared to adjacent normal tissue, with MNK1b overexpressed primarily in triple-negative breast cancers
  • - High levels of MNK1b are linked to poorer survival rates and may serve as a potential therapeutic target for treatment, especially in aggressive triple-negative breast cancer cases
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