Malignant mesothelioma (MM) is a highly aggressive tumor that is strongly related to asbestos fiber exposure. The tumorigenesis procedure in MM is complex, and many pathogenetic mechanisms including chronic inflammation, deregulation of cell death, and the genomic copy-number losses and gains may contribute to carcinogenesis. MM cells are resistant to TRAIL-mediated apoptosis due to defects in extrinsic apoptotic pathway. CAPS, a regulator of cell cycle and death, may contribute to the MM development as well. BAP1 is the most frequently inactivated gene in MPM; BAP1 deficiency triggers malignant transformation via disruption of DNA repair, transcription regulation, cell metabolism, apoptosis, and ferroptosis. In addition, bcl-2 family proteins as well as abnormal activation of PI3 K/Akt/mTOR pathway and deregulation of the Wnt signaling pathway may result in MM tumorigenesis. Finally, the Hippo pathway plays a critical role in MPM development. Mutations of NF2 and LATS lead to YAP activation in MPM. Thus, inhibition of YAP activity by YAP inhibitors could be a potentially promising treatment option for MM. In conclusion, extensive genetic alterations exist in mesotheliomas associated with the signaling of apoptotic HM cells death. The comprehension of these pathways may contribute to enhancing survival via developing new effective therapeutic strategies.
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http://dx.doi.org/10.1007/s00280-019-03878-3 | DOI Listing |
Ecotoxicol Environ Saf
January 2025
Department of Occupational and Environmental Health, School of Public Health, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, China; Global Health Research Center, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, China. Electronic address:
Sodium arsenite (NaAsO), the most common form of inorganic arsenic prevalent in the environment, has been closely linked to islet β-cell dysfunction, a critical pathological hallmark of type 2 diabetes (T2D). Even though apoptosis plays a pivotal role in arsenic-induced islet β-cell dysfunction, the explicit underlying mechanisms remain elusive. Here, we have identified that the SET-Rac1 signaling pathway is instrumental in the apoptosis and dysfunction of islet β-cells induced by NaAsO.
View Article and Find Full Text PDFCirc Res
January 2025
Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China (X.H., J.Z., C.X., R.C., P.J., X.J., P.H.).
Background: Cardiac ischemia/reperfusion disrupts plasma membrane integrity and induces various types of programmed cell death. The ESCRT (endosomal sorting complex required for transport) proteins, particularly AAA-ATPase Vps4a (vacuolar protein sorting 4a), play an essential role in the surveillance of membrane integrity. However, the role of ESCRT proteins in the context of cardiac injury remains unclear.
View Article and Find Full Text PDFEarly embryo development features autonomous, maternally-driven cell divisions that self- organize the multicellular blastula or blastocyst tissue. Maternal control cedes to the zygote starting with the onset of widespread zygotic genome activation (ZGA), which is essential for subsequent cell fate determination and morphogenesis. Intriguingly, although the onset of ZGA is highly regulated at the level of an embryo, it can be non-homogenous and precisely patterned at the single-cell level.
View Article and Find Full Text PDFUnlabelled: The integrity of the hematopoietic stem cell (HSC) pool relies on efficient long-term self-renewal and the timely removal of damaged or differentiation-prone HSCs. Previous studies have demonstrated the PERK branch of the unfolded protein response (UPR) drives specific programmed cell death programs to maintain HSC pool integrity in response to ER stress. However, the role of PERK in regulating HSC fate remains unclear.
View Article and Find Full Text PDFCell Tissue Res
January 2025
College of Life Science, Henan Normal University, No. 46, Jianshe Road, Xinxiang 453007, Henan, China.
Sox genes encode a family of transcription factors that regulate multiple biological processes during metazoan development, including embryogenesis, tissue homeostasis, nervous system specification, and stem cell maintenance. The planarian Dugesia japonica contains a reservoir of stem cells that grow and divide continuously to support cellular turnover. However, whether SOX proteins retain these conserved functions in planarians remains to be determined.
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