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Microbes & Immunity                                               Big data and DNN-based DTI model in CHP



            Concurrently, candidate drugs are predicted to dock with   prednisone are commonly used to treat hypersensitivity
            selected biomarkers. Potent drugs often carry high-risk   pneumonitis. They can quickly relieve lung inflammation
            damage, so considerations of toxicity, allergenicity, and the   symptoms, but long-term use can lead to osteoporosis,
            balance between efficacy and adverse reactions are crucial.   hypertension,  diabetes,  peptic  ulcers,  and  increased
            To ensure the stability and safety of clinical drug trials, the   risk of infection.  Clinical evidence indicates that some
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            drug’s stability and safety must be considered in the design   patients may develop a dependency on corticosteroids,
            of clinical guidelines, such as regulatory capacity, toxicity,   making it difficult to discontinue the medication. In this
            sensitivity, and specificity. To measure the regulatory   study, we utilize database mining, CHP whole-genome
            capacity of candidate molecular drugs, available regulatory   microarray data, and systems biology methods to identify
            capacity data were downloaded from the L1000 Level 5   core GWGEN and establish core signaling pathways of
            dataset, which includes data on 1453 genes treated in 156   CHP and downstream cellular dysfunctions, as shown in
            different cell lines with 21,043 compounds. Regulatory   Figure  4. This was done to investigate the pathogenetic
            capacity data, with positive values indicating upregulation   mechanism and identify significant biomarkers as drug
            and negative values indicating downregulation, were used   targets, predicting potential molecular drugs to treat
            to identify molecular drugs suitable for cell downregulation.   CHP. Using the prediction of the DNN-based DTI model,
            Based on this criterion, we searched for molecular drugs   we aim to find new multi-molecular drugs to treat CHP.
            in appropriate cell lines that could reverse the expression   Considering  sensitivity,  toxicity,  and  regulatory  capacity
            of biomarkers leading to pulmonary cell fibrosis, restoring   as drug specifications, we combine deep learning and
            their  normal  expression.  In  addition,  lower  drug  toxicity   systems biology methods to find suitable molecular drugs
            helps reduce side effects, as indicated by the median lethal   for the treatment of CHP. Finally, the molecular drugs
            dose (LD ), typically sourced from DrugBank.  The lower   azathioprine, masitinib, and primaquine were chosen and
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                   50
            the LD  value, the higher the toxicity. Furthermore, higher   formulated into a multi-molecular drug treatment for
                 50
            drug sensitivity (lower half maximal effective concentration   CHP, as shown in Table 2.
            [EC ] values) allows for reduced drug dosages. Drug
               50
            sensitivity data were obtained from the PRISM dataset,   Azathioprine is an immunosuppressant that reduces
            which includes information on 4,518 drugs tested in 578   inflammation by inhibiting immune system activity
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            human cell lines. EC  measures drug potency, with lower   and helps control disease progression.  In the CHP
                            50
                                                                                                    +
            EC  values indicating greater efficacy at lower doses. By   microenvironment, the overactivation of CD4  T cells in
              50
            selecting the correct drug, abnormal expressions in diseases   the  Th17  signaling  pathway  leads  to  abnormal  anti-Th1
            can be well-reversed. Predicting candidate drugs through   and Th2 cell signaling, exacerbating the immune response
            the DNN-based DTI model, we identified several potential   and creating a vicious cycle of uncontrolled cell apoptosis
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            drugs for these biomarkers. The DNN-based DTI model,   and proliferation.  According to the European Respiratory
            based on identified biomarkers, provided predictions for   Society, azathioprine shows some efficacy in improving
            some candidate drugs along with their regulatory capacity,   lung function, particularly in enhancing the diffusing
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            toxicity, and sensitivity information, as shown in Table 1.   capacity for carbon monoxide.  While its improvement
            Based on the three-drug design criteria (appropriate   in forced vital capacity is not significant, azathioprine is
            regulatory capacity, high sensitivity, and low toxicity),   valuable in reducing the long-term side effects of steroid
            potential drugs such as azathioprine, masitinib, and   use, showing significant clinical value. Azathioprine
            mycophenolate-mofetil were screened and combined into a   inhibits the JAK signaling pathway, reducing inflammation
            multi-molecular drug for treating CHP, as shown in Table 2.  and inhibiting TGF-β, thereby reducing B-cell activation
                                                               and inflammation. It’s anti-IL-6 or anti-TNF-α antibodies
            4. Discussion                                      target specific inflammatory mediators for precise
                                                               inflammation treatment.
            In the stage of recurrence, the most straightforward method
            to treat CHP is to avoid prolonged exposure to allergens.   Masitinib  can  reduce  inflammation by  inhibiting  the
            This  primarily  includes  organic  dust,  microorganisms,   activation of mast cells and eosinophils, thereby reducing
            animal proteins, and certain chemicals.  However, some   the release of inflammatory mediators. In addition, by
                                            1
            allergens are almost unavoidable in general households,   inhibiting multiple tyrosine kinase receptors, masitinib
            such as indoor mold and pet dander. In addition, due   can affect various cell signaling pathways, providing a more
            to  occupational reasons,  some  patients cannot  avoid   comprehensive anti-inflammatory effect. It downregulates
            environments rich in allergens, such as beryllium  and   CCL20, CDC23, and CXCL1, thereby inhibiting tumor
            other metal dust. Therefore, medication is necessary to   cell growth and immune cell activation. By blocking these
            alleviate allergic symptoms. At present, corticosteroids like   cells’  activity, masitinib can reduce  inflammation and


            Volume 2 Issue 2 (2025)                        100                               doi: 10.36922/mi.4620
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