TYRP2-mediated resistance to cis-diamminedichloroplatinum (II) in human melanoma cells is independent of tyrosinase and TYRP1 expression and melanin content
Bibliographic record
Abstract
Tyrosinase-related protein-2 (TYRP2) is a melanocyte-specific enzyme that catalyses the non-decarboxylative tautomerization of L-dopachrome to 5,6-dihydroxyindole-2-carboxylic acid (DHICA) in the melanin biosynthetic pathway. We have recently demonstrated that the constitutive expression of TYRP2 in human melanoma cells positively correlates with cis-diamminedichloroplatinum (II) (CDDP) resistance, and that the ectopic expression of TYRP2 in CDDP-sensitive cells rendered them more resistant to CDDP treatment. Here, we demonstrate that this correlation between constitutive TYRP2 expression and CDDP resistance applies to a panel of distinct human melanoma cell lines obtained from patients with melanoma at various stages of disease progression. We further show that CDDP resistance correlates only with TYRP2 expression and is associated neither with tyrosinase and TYRP1 expression, nor with cellular melanin content. Together, these results further support the notion that TYRP2 is a novel mediator of CDDP resistance in melanoma cells and suggest that this function of TYRP2 is independent of cellular melanin content and of the other regulatory enzymes of the melanogenic pathway.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".