Structure-activity relationship exploration of the historical biarylurea series led to the identification of novel CNS penetrant CXCR2 antagonists with nanomolar potency, favorable PK profile, and good developability potentials. More importantly, the key compound 22 showed efficacy in a cuprizone-induced demyelination model with twice daily oral administration, thereby supporting CXCR2 to be a potential therapeutic target for the treatment of demyelinating diseases such as multiple sclerosis.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4834652 | PMC |
http://dx.doi.org/10.1021/acsmedchemlett.5b00489 | DOI Listing |
J Med Chem
January 2025
Pharmaron Beijing Co., Ltd., 6 Taihe Road, BDA, Beijing 100176, P. R. China.
Despite recent advances in the inhibition of EGFR (epidermal growth factor receptor), there remains a clinical need for new EGFR Exon20 insertion (Ex20Ins) inhibitors that spare EGFR WT. Herein, we report the discovery and optimization of two chemical series leading to ether and biaryl as potent, selective, and brain-penetrant inhibitors of Ex20Ins mutants. Building on our earlier discovery of alkyne which allowed access to CNS property space for an Ex20Ins inhibitor, we utilized structure-based design to move to lower lipophilicity and lower CL compounds while maintaining a WT selectivity margin.
View Article and Find Full Text PDFPract Radiat Oncol
January 2025
Department of Radiation Oncology, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey. Electronic address:
Lorlatinib is a central nervous system (CNS) penetrant third generation tyrosine kinase inhibitor (TKI) approved for the first line management of metastatic non-small cell lung cancer (NSCLC) with anaplastic lymphoma kinase (ALK) rearrangement [1] which accounts for 3-5% of NSCLC cases [2]. The most commonly reported side effects include hyperlipidemia, edema, peripheral neuropathy and CNS effects [2]. While ocular side effects such as photopsia, blurred vision, vitreous floaters and diplopia have been documented with another ALK TKI, crizotinib, there are few reports of such effects with lorlatinib [3].
View Article and Find Full Text PDFEcancermedicalscience
October 2024
Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai 400012, India.
Spread of lung cancer to the leptomeninges is rare and difficult to treat. Standard therapy comprises CNS-penetrant targeted agents with or without intrathecal chemotherapy. We performed a retrospective analysis of 16 patients with advanced NSCLC and leptomeningeal disease treated with intrathecal pemetrexed 50 mg.
View Article and Find Full Text PDFCurr Treat Options Oncol
January 2025
Breast Oncology Program, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
Breast cancer metastasizing to the central nervous system (CNS) encompasses two distinct entities: brain metastases involving the cerebral parenchyma and infiltration of the leptomeningeal space, i.e., leptomeningeal disease.
View Article and Find Full Text PDFSci Transl Med
January 2025
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
In multiple sclerosis (MS), microglia and macrophages within the central nervous system (CNS) play an important role in determining the balance among demyelination, neurodegeneration, and myelin repair. Phagocytic and regenerative functions of these CNS innate immune cells support remyelination, whereas chronic and maladaptive inflammatory activation promotes lesion expansion and disability, particularly in the progressive forms of MS. No currently approved drugs convincingly target microglia and macrophages within the CNS, contributing to the lack of therapies aimed at promoting remyelination and slowing disease progression for individuals with MS.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!