Nluc Reporter Cell Line - MOLT-4

MOLT-4 is a well-established human T-cell acute lymphoblastic leukemia (T-ALL) cell line, originally derived from the peripheral blood of a 19-year-old male patient experiencing disease relapse. Characterized by its suspension growth and T-lymphoblast morphology, MOLT-4 is a cornerstone model for studying T-cell leukemogenesis, harboring critical genetic alterations such as a highly mutated p53 gene. The Nluc Reporter Cell Line - MOLT-4 advances this traditional model by stably integrating the NanoLuc (Nluc) reporter gene into its genome. NanoLuc, a compact 19.1 kDa enzyme engineered from the deep-sea shrimp Oplophorus gracilirostris, produces a highly intense luminescent signal—often up to 100 times brighter than standard firefly luciferase—when exposed to its specific substrate, furimazine. Crucially, the genetic engineering process ensures that the Nluc-MOLT-4 cells retain the exact biological characteristics, surface antigen expression profiles, and aggressive suspension behavior of the parental line, providing a robust and biologically accurate platform for hematological research.

The integration of the ultra-bright NanoLuc reporter makes the MOLT-4 Nluc cell line an exceptionally powerful tool for both in vitro analytics and complex preclinical in vivo modeling. In the laboratory, the intense luminescent output enables highly sensitive quantification of cell viability and proliferation. This makes it an ideal platform for high-throughput screening of anti-leukemic chemotherapies and for evaluating the targeted cytotoxicity of advanced immunotherapies, such as CAR-T cells, NK cells, or bispecific antibodies, where detecting small numbers of surviving target cells is critical. In preclinical animal studies, this cell line is invaluable for establishing systemic xenograft models of T-ALL. Following intravenous injection into immunodeficient mice, the Nluc-MOLT-4 cells disseminate and engraft in typical leukemic niches, including the bone marrow, spleen, and frequently the central nervous system (CNS). The brilliant NanoLuc signal facilitates highly sensitive, non-invasive bioluminescence imaging (BLI), enabling researchers to precisely track systemic tumor burden, monitor difficult-to-detect CNS infiltration, and dynamically evaluate the efficacy of novel therapeutics in living animals over time.