ROR1 expression

In addition, BBRM reversed the immunosuppressive tumor microenvironment, thus improving breast cancer therapeutic efficacy. It was a pioneering investigation in synergistic chemo-gene therapy by co-delivering DTX and ROR1 siRNA for TNBC treatment.

ROR1 CAR T cells were well tolerated in most patients. Antitumor activity was observed in CLL but was limited in TNBC and NSCLC. Immunogenicity of the CAR and lack of sustained tumor infiltration were identified as limitations.

CAFs secrete exosomal ROR1-AS1 to promote the expression of SLC7A11 by interacting with IGF2BP1, thereby inhibiting ferroptosis of lung cancer cells.

Finally, we found that ROR1 overexpression could partially reverse the decreased activity of STAT3 induced by DHA which indicates that DHA-induced anti-growth signaling is conferred, at least in part, through blocking ROR1-mediated STAT3 activation. In summary, our study indicates that in NSCLC, ROR1 could be one of the critical molecular targets mediating DHA-induced STAT3 retardation.

Therefore, Ror1 and Ror2 have been proposed as potential targets for the treatment of the malignancies. In this review, we provide an overview of the regulatory mechanisms of Ror1/Ror2 expression and discuss how Wnt5a-Ror1/Ror2 signaling is mediated and regulated by their interacting proteins.

Furthermore, we show that Wnt5b-Ror1 signaling in PANC-1 cells promotes their proliferation in a cell-autonomous manner by modulating our experimental setting in vitro. Collectively, these findings indicate that Wnt5b-Ror1 signaling might play an important role in the progression of some if not all of PDAC by promoting proliferation.

The CD5+/CD10- group had a significantly higher proportion of ROR1 positive samples (89.9%) and more brightly expressed ROR1 than the other groups. Our results highlight the importance of evaluating ROR1 expression in the diagnosis of MBLN to contribute to the differential diagnosis, and possibly therapy of mainly CLL, and indicate that this marker could be considered as a useful addition to immunophenotypic panels, particularly for more challenging cases.

Strictinin was further identified as synergistic with docetaxel [combination index (CI) = 0.311] and the combination therapy was found to reduce the IC of strictinin to 38.71 µmol/L in PC3 cells. ROR1 is an emerging molecular target that can be utilized for treating prostate cancer. The data from this study establishes strictinin as a potential therapeutic agent that targets AR-AI prostate cancer with elevated ROR1 expression to reduce the migration, invasion, cell cycle progression, and survival of prostate cancer.

The parent macrocyclic peptides represented by Compound 1 and Compound 14 displayed nanomolar cell-based binding to ROR1 and relatively good internalization in 786-O and MDA-MB-231 tumor cell lines. However, these peptides were not observed to induce apoptosis in Mia PaCa-2 cells, a model pancreatic tumor cell line with a relatively low level of cell surface expression of ROR1.

WSP-act prostate cancer demonstrated a pronounced upregulation of ROR1 gene expression, underscoring its potential involvement in the crosstalk between the canonical and non-canonical Wnt signaling pathways. Additionally, the augmented levels of M2 macrophages in WSP-act tumors, combined with the reported role of ROR1 in tumor immunosuppression, suggests that ROR1 may contribute to immune evasion in WSP-act mPCa. Our findings may provide rationale for developing novel therapeutic strategies targeting Wnt-activated prostate cancers.

The N-803 combined with dinutuximab and exPBNK cells significantly extended the survival of NB xenografts (Chu/Cairo, et al, JITC...C021 was generated by modifying C134 to express human IL21 gene... Our data demonstrated IL15 or IL21 based novel cytokine therapy (N-803 or C021) significantly enhanced the anti-tumor efficacy of ROR1 CAR NK targeting NB in vitro and in vivo

We next used bortezomib as a cytotoxin to develop automated quantification of dose-dependent tumor spheroid killing...Finally, we demonstrate the RCC-on-a-chip as a platform to model the trafficking of tumor-reactive T cells into the ECM and observed antigen-specific A498 spheroid killing by engineered human CD8 T cells expressing an ROR1-specific chimeric antigen receptor. In summary, the phenotypic differences between the 3D versus 2D environments, rapid imaging-based readout, and the ability to carefully study the impact of individual variables with quantitative rigor will encourage adoption of the RCC-on-a-chip system for testing a wide range of emerging therapies for RCC.