Sign in Subscribe
Cancer research

Novel Cancer-Specific Protein Identified in Broad Range of Cancer Types

Strategic Insights

— 1 min read

A new study led by researchers at Ohio State University has identified a cancer-specific protein, Piwil2-like (PL2L) protein, that is present in a wide range of cancer types and at all stages of tumor development. This protein, also known as PL2L60, has been detected in various human cancer cell lines, including those derived from blood, skin, soft tissues, and organs such as the kidney, brain, breast, liver, pancreas, and lung. The researchers suggest that this protein could serve as a marker for early detection and treatment of primary and metastatic tumors, and provide a target for the development of anticancer therapies.

Key Takeaways:

  • The study identified a cancer-specific protein, PL2L60, that is present in a broad range of cancer types and at all stages of tumor development.
  • PL2L60 is consistently expressed in many types and all stages of cancer, suggesting it may play a role in tumor initiation and progression.
  • The protein is co-expressed with the cell survival and growth promoting protein NF-kappaB in proliferating tumor cells of primary and metastatic cancers.
  • Whole Piwil2 was detected almost exclusively in dead or dying tumor cells, suggesting that PL2L proteins and Piwil2 proteins play opposite roles in tumor development.
  • A vaccine designed to target these cancer-cell proteins might prevent still-benign tumors from progressing to cancer and prevent recurrence of malignant tumors following surgery.
  • The researchers suggest that PL2L60 could serve as a biomarker for cancer diagnosis, prevention, and therapy, and offer a new target for the development of new anticancer agents and a new tumor vaccine.

Statistics:

  • The study analyzed mouse tumors and human cancer cell lines using gene-exon-mapping reverse transcription polymerase chain reaction (GEM-RT-PCR), bioinformatics analyses, and novel monoclonal antibodies.
  • At least four versions of PL2L proteins, including PL2L40, PL2L50, PL2L60, and PL2L80, were identified through the analysis of the PIWIL2 gene.
  • PL2L60 was the most abundant in tumor cell lines, with a significant presence in a variety of human cancer cell lines.

Sources:

  • Gao, J.-X., et al. (2010). "Identification of a Broad Spectrum Cancer-Specific Protein and Its Therapeutic Potential." PLoS ONE, 5(10), e13201.
  • Cancer Vaccine Week editors. (2010). "Novel Cancer-Specific Protein Identified in Broad Range of Cancer Types." NewsRx.com.

Read more