Ph-like acute lymphoblastic Leukaemia (ALL) panel

Intended Use

Philadelphia chromosome (Ph)-like acute lymphoblastic leukemia (ALL), also referred to as a BCR-ABL1-like ALL, is a high-risk subset with a gene expression profile that shares significant overlap with that of Ph positive (Ph+) ALL and is suggestive of active kinase signaling. It exhibits adverse clinical features, confers poor prognosis and harbors a diverse range of genetic alterations that active cytokine receptors genes and kinase signaling pathways making it amenable to treatment with tyrosine kinase inhibitor (TKI) therapy. 

Specimen Required

3 mL bone marrow to a Green (Sodium Heparin)

Patient Preparation
  • Sample collection: Non-diluted bone marrow aspirate. Collect in a sodium heparinized Vacutainer.
  • Specimen preparation: Do not freeze or expose to extreme temperatures.
  • Bone Marrow: Transfer 3 mL bone marrow to a Green (Sodium Heparin). (Min: 1 mL)
  • Whole Blood: Transport 5 mL whole blood. (Min: 2 mL)
  • Storage/Transport Temperature: Room temperature.
  • Unacceptable Conditions: Frozen specimens. Clotted specimens.
  • Remarks:
  • Stability: Ambient: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Methodology

Fluorescence in situ Hybridization (FISH)

Sample received to report Turnaround time (TAT)

3 working days

Reference Interval

————-

Interpretive Data

Probes include: ABL2, PDGFRB, CSF1R, JAK2, ABL1, EPOR/19p del, CRLF2

The most recent WHO classification of Tumours of Hematopoietic and Lymphoid Tissues (Revised 5th edition) is used for interpretation criteria for evaluation.

Resources

Sample Reports