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Tumor Discovery                                                Mechanism of Buddleja officinalis against ESCC




                          A






                          B







                          C









            Figure 3.  GO  enrichment  analysis  of  treating  ESCC  targets.  GO  analysis  (including  BP,  CC,  and  MF)  was  visualized  using  the  R  packages
            “DOSE”. (A) BP analysis of treating ESCC targets. (B) CC analysis of treating ESCC targets. (C) MF analysis of treating ESCC targets.
            Abbreviations: ESCC: Esophageal squamous cell carcinoma; GO: Gene Ontology; BP: Biological process; CC: Cellular component; MF: Molecular function.


                                                                 Here, we selected the most pertinent pathway to
                                                               discuss the mechanism of BO in treating ESCC. The
                                                               MAPK signaling pathway is a widely prevalent cellular
                                                               signaling pathway in living organisms that plays a crucial
                                                               role in regulating cellular processes, that is, cell growth,
                                                               differentiation, migration, and apoptosis. It also plays a
                                                               vital role in various biological systems including neural
                                                               signal transmission, inflammatory responses, and tumor
                                                               development. Specifically, the MAPK signaling pathway
                                                               is involved in regulating the expressions of multiple
                                                               ESCC-related genes  and includes several regulatory
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            Figure  4.  KEGG  enrichment analysis  for  the  signaling pathways.   components, such as extracellular signal-related kinases
            KEGG  pathway  enrichment was  analyzed  using  the  R  packages
            “clusterProfiler”.                                 (ERK1/2), Jun N-terminal kinases (JNK1/2/3), p38-
                                                                              42
            Abbreviation: KEGG: Kyoto Encyclopedia of genes and genomes.  MAPK, and ERK5.  Therefore, MAPK signaling pathway
                                                               is closely related to the malignant behavior of tumors
            addition, the target enrichment of CC unveiled secretory   and plays an indispensable role in the occurrence and
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            granule lumen, cytoplasmic vesicle lumen, and vesicle   development of various cancers.  For example, BO can
            lumen as the potential pathways, and revealed ALB, TTR,   inhibit high glucose-induced atherosclerosis by inhibiting
            and IGF1 as the relevant targets. The target enrichment   p38, JNK, NF-κB and MMP signaling pathways in human
                                                                                     44
                                                                                                            45
            of MF yielded transmembrane receptor protein kinase   aortic smooth muscle cells.  In the study by Oh et al.,
            activity and glycosaminoglycan binding, and nuclear   BO  inhibited  the synthesis  and  release  of NO,  iNOS,
            receptor activity,  and  the  involved  targets  mainly   and pro-inflammatory factors by blocking ERK1/2 and
            encompass TGFBR2, FGFR1, and FGFR2. Overall, these   NF-κB in BV-2 microglias. These findings shed light
            findings illuminate the complexity of ESCC pathology. To   on an underlying mechanism for the anticancer effects
            further examine the underlying mechanism by which BO   of BO.
            acts on ESCC, we performed KEGG analysis on the targets   For the sake of further exploring the potential
            and found that BO inhibited ESCC-related pathways, such   mechanism  of  BO  in  inhibiting  ESCC,  we  carried  out
            as MAPK signaling pathway, RAS signaling pathway, and   a molecular docking study on AKT1, a closely related
            Rap1 signaling pathway.                            target of ESCC, based on KEGG screening and using


            Volume 3 Issue 1 (2024)                         8                          https://doi.org/10.36922/td.2312
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