Molecular Characterization of Chronic Lymphocytic Leukemia With Two Distinct Cell Populations: Evidence for Separate Clonal Origins
Bibliographic record
Abstract
We report a case of an elderly woman with persistent lymphocytosis in whom flow cytometric immunophenotyping revealed 2 distinct clonal B-cell populations with different light chain restrictions. One clone was CD19+ (dim), CD5+ (bright), CD23+ (moderate), and kappa+; the other clone was CD19+ (moderate), CD5+ (bright), CD23+ (dim), and lambda+. We separated the 2 clones by flow cytometry from peripheral blood lymphocytes for further molecular and cytogenetic analysis. Polymerase chain reaction (PCR) analysis of the immunoglobulin heavy chain (IgH) genes revealed that the clones had bands of slightly different size. The PCR products of the framework 3 (FR3) region were cloned, and sequence analysis confirmed that each population had distinct, clone-specific IgH gene rearrangements. Fluorescence in situ hybridization (FISH) analysis revealed trisomy 12 in the lambda-restricted B-cell clone, whereas the k-restricted population had normal FISH patterns. Our results demonstrated that the immunophenotypically different cell populations originated from 2 separate clones.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".