Furthermore, in vivo studies indicated that 177Lu-DOTA-amatuximab exhibited limited side effects. The development of 89Zr/177Lu-labeled amatuximab may provide novel insights into the formulation of precision diagnostic and therapeutic strategies for MSLN- overexpressing tumors, including PDAC.
Moreover, mechanistic exploration revealed that the attenuation of autophagy-lysosome function caused by microenvironmental alkalization inhibited the degradation of MSLN. Hence, alkalization of the microenvironment improves the consistency and high expression of the target antigen MSLN and constitutes a routine method for treating diverse solid cancers via MSLN-CAR-T cells.
a May occur at any point in disease course. CRC, colorectal cancer; D, day; MESO, mesothelioma; NSCLC, non-small cell lung cancer; OVCA, ovarian cancer; PANC, pancreatic cancer; PCLD, preconditioning lymphodepletionDownload figure Open in new tab Download powerpoint Abstract 627 Figure 3 EVEREST-2 phase 1 dose escalation study design
1 month ago
Clinical • P1/2 data • CAR T-Cell Therapy • IO biomarker
|
HLA-A (Major Histocompatibility Complex, Class I, A) • MSLN (Mesothelin)
Canine mesothelin exhibits molecular and biological characteristics akin to human mesothelin. It could serve as a vital biomarker for diagnosing canine mesotheliomas, applicable to both tissue- and effusion-based samples.
Further testing of tofacitinib to prevent ADA formation is recommended in applicable non-malignant disease settings. https://www.clinicaltrials.gov/study/NCT04034238.
Our findings indicate that by targeting the protease-sensitive region of MSLN, BsAb 5 has high MSLN-specific anticancer activity that is not inhibited by shed MSLN. BsAb 5 may be a promising immunotherapy candidate for MSLN-expressing cancers.
Sensitivity of tumor cells to gemcitabine was evaluated...We concluded that MSLN could induce chemoresistance by enhancing migration, invasion, EMT and cancer stem cell traits of pancreatic cancer cells. Targeting MSLN could represent a promising therapeutic strategy for reversing EMT and chemoresistance in pancreatic cancer cells.
HiTs can be isolated from fully human TCR-displaying phage libraries against cell surface-expressed antigens. HiTs are able to fully activate primary T cells both in vivo and in vitro. HiTs may enable the efficacy seen with pHLA-targeting TCRs in solid tumors to be translated to cell surface antigens.
Our results demonstrate that MSLN plays a critical role in BM of NSCLC by modulating the JNK/MET signaling network and thus, provides a potential novel therapeutic target for preventing BM in NSCLC patients.
7 months ago
Journal
|
MET (MET proto-oncogene, receptor tyrosine kinase) • MSLN (Mesothelin) • MAPK8 (Mitogen-activated protein kinase 8)
P2, N=6, Terminated, National Cancer Institute (NCI) | Trial completion date: Mar 2024 --> Dec 2023 | Active, not recruiting --> Terminated; Study was terminated due to slow accrual.
The collective results demonstrate that mesothelin induces metabolic changes in leukemia cells, facilitating the acquisition of a rapid supply of ATP for proliferation in AML. Therefore, the targeting of mesothelin presents a potentially promising approach to mitigating the progression of AML through the inhibition of glycolysis and mitochondrial respiration in myeloid cells.
9 months ago
Journal
|
MSLN (Mesothelin) • SDHA (Succinate Dehydrogenase Complex Flavoprotein Subunit A)
Recent advancements in checkpoint inhibitors, adoptive T cell therapies, and cancer vaccines have shown potential in overcoming the immune evasion mechanisms of pancreatic cancer cells. Combining these immunotherapeutic approaches with nanocarriers holds great promise in enhancing the antitumor response and improving patient survival.
P1, N=74, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Jan 2024 --> Jan 2025 | Trial primary completion date: Jan 2024 --> Jan 2025
9 months ago
Trial completion date • Trial primary completion date • Combination therapy • Tumor mutational burden • Metastases
A 3D cell culture model based on MSLN-expressing multicellular tumor spheroids reveals NA penetration in the first superficial layers. Altogether, these results open the path to novel anticancer strategies based on MSLN-activated internalization of NA incorporating drugs to promote specific accumulation of active treatments in tumors.
In this study, MSLN expression is widely observed in UCS. Moreover, high-MSLN expression is a favorable prognostic factor for UCS, which could be a promising therapeutic target, regardless of HER2 expression. This study was published in the Journal of Gynecologic Oncology.
P1, N=15, Recruiting, Fred Hutchinson Cancer Center | Trial completion date: Sep 2024 --> Jun 2025 | Trial primary completion date: Dec 2023 --> Jun 2024
10 months ago
Trial completion date • Trial primary completion date • Metastases
|
HLA-A (Major Histocompatibility Complex, Class I, A) • MSLN (Mesothelin)
|
MSLN expression • HLA-A*02
|
cyclophosphamide • bendamustine • fludarabine IV • FH-TCR-Tᴍsʟɴ
P1, N=42, Not yet recruiting, National Cancer Institute (NCI) | Trial completion date: Dec 2027 --> Dec 2024 | Trial primary completion date: Dec 2026 --> Dec 2024
11 months ago
Trial completion date • Trial primary completion date • Surgery
(3) ELISA analysis revealed that the expression levels of IFN-γ, TNF-α, GZMB, PRF1, IL-6, and IL-10 in ovarian cancer cells of the anti-MSLN-iCAR-NK cell group were significantly higher than those in the NK cell group and the control group (all P<0.05). The anti-MSLN-iCAR-NK cells exhibit a strong killing ability against ovarian cancer cells, indicating their potential as a novel immunotherapy approach for ovarian cancer.
Development of the first-generation CD137-agonist monotherapies utomilumab and urelumab was unsuccessful due to low antitumor efficacy mediated by the epitope recognized on CD137 or hepatotoxicity mediated by FcγR ligand-dependent CD137 activation, respectively. Compared with 3H3, a murine surrogate of urelumab, FS122m and chimeric M9657 displayed significantly lower on-target/off-tumor toxicity. Taken together, M9657 exhibits a promising profile for development as a tumor-targeting immune agonist with potent anticancer activity without systemic immune activation and associated hepatotoxicity.
11 months ago
Journal • IO biomarker
|
CD8 (cluster of differentiation 8) • MSLN (Mesothelin)
T cells expressing a mesothelin (MSLN)-specific T cell receptor fusion construct (TRuC), called TC-210, have demonstrated robust antitumor activity in preclinical models of mesothelioma, ovarian cancer, and lung cancer. These data demonstrate that integration of a PD1-CD28 CSR into TRuC-T cells improves effector function, resistance to exhaustion, and prolongs persistence. Based on these findings, TC-510 is currently being evaluated in patients with MSLN-expressing solid tumors.
Furthermore, PET imaging allowed us to compare the pharmacokinetics of epitope-specific VH domain-based PET tracers. Overall, these data are encouraging for the incorporation of PET imaging to assess modified VH domain structures to develop novel anti-MSLN VH domain-based therapeutics in MSLN-positive cancers as well as their companion PET imaging agents.
MSLN expression is widely observed in gynecological carcinosarcomas. Moreover, high-MSLN expression is a favorable prognostic factor for UCS. MSLN could be a promising therapeutic target for UCS, even in the era of anti-HER2 therapy.
We are currently doing similar in vivo studies to test the efficiency of ab-LNPs. Next, we will translate these promising results to an in vivo ovarian cancer mice model to engineer endogenous immune cells to directly express CARs, as new strategy to overcome the current problems of cell and gene therapies, starting by develop an effective and safety therapy for treatment of diverse refractory malignancies.
In the exploratory cohort, low mesothelin and high COL1A1 and COL5A1 expression were associated with poor overall survival. Tumor mesothelin expression associated with the TME immune landscape predicts the risk of death for patients with MPM and could be a new target for immunotherapy in MPM.
1 year ago
Journal • PD(L)-1 Biomarker • IO biomarker
|
CD20 (Membrane Spanning 4-Domains A1) • CD8 (cluster of differentiation 8) • MSLN (Mesothelin) • CD4 (CD4 Molecule) • CD68 (CD68 Molecule) • COL1A1 (Collagen Type I Alpha 1 Chain) • COL5A1 (Collagen Type V Alpha 1 Chain)
Our results suggest that irinotecan can enhance the antitumor activity of MSLN-targeted CAR T cells, and offer a promising combination therapy strategy for MSLN-positive solid tumors.
Finally, the unified mechanism by which MSLN acts as a protein that conveys tumor aggressiveness remains elusive. What is clear is that there is much yet to be discovered in this realm and doing so may have large implications for treatment of otherwise lethal malignancies.
Here we report a novel function of portal fibroblasts as drivers of cholestatic fibrosis, ductular reaction, inflammation, hepatocyte senescence, and HCC in aged mice, demonstrating the key role of the tumor microenvironment.