Identification and Analysis of Ardisia humilis as Potential Antihyperlipidemic by Network Pharmacology Followed by Molecular Docking

 

Tri Diana Puspita Rini1, Frangky Sangande2, Kurnia Agustini2, Anton Bahtiar1*

1Department of Pharmacology and Toxicology, Faculty of Pharmacy, Universitas Indonesia,

Gedung Fakultas Farmasi Kampus UI Depok 16424, Indonesia.

2Research Center for Pharmaceutical Ingredient and Traditional Medicine,

The National Research and Innovation Agency (BRIN), South Tangerang, Banten, Indonesia.

*Corresponding Author E-mail: anton.bahtiar@ui.ac.id

 

ABSTRACT:

Objective: Hyperlipidemia is increasing lipids in a body that are risk factors for cardiovascular disease that increased last over 30 years. Natural products have a large portion as pharmacological agents, particularly in disease therapies. The pharmacological activity of natural product remedies has been thoroughly screened using high approaches in drug discovery. Lampeni, also known as Ardisia humilis Vahl, is utilized for various illnesses such as vertigo, rheumatism, and skin ulcers, and as a stimulant, carminative, andantidiarrheall.Previous studies have shown that feeding Swiss albino rats alcohol extract at 200mg/KgBW could decrease LDL, triglycerides, total cholesterol, and VLDL and increase HDL. Method: This study aimed to predict Lampenileaf's network pharmacology as a potential for hyperlipidemiausing multiple ethnobotanical databases and software. This research was cond.This is in silico. Results: The result of Lampeni leaf is almost all bioactive compounds targeted hyperlipidemia-associated genes.Compounds with the highest potential of Hyperlipidemia are Ardisinol II, Bilobol, ArdisiphenolB, Maesaquinone, Beta amiryn, and Embelin. IL6, HSP90AA1, EGFR, MAPK3, SRC, PPARG, and STAT3 had the best value and became the gene doth the Lampeni leaf compound.These targets are tightly associated with inflammatory and proliferation processes, which explain the possible explaining Lampeni leaf in attenuating hyperlipidemic symptoms.Further study is needed to validate the result other than by molecular docking method, such as molecular dynamics, in vitro, or in vivo studies.

 

KEYWORDS: Hyperlipidemia, Ardisia humilis, Molecular docking, IL6, Beta amyrin.

 

 


INTRODUCTION: 

Hyperlipidemia is increasing lipids in a body that are risk factors for cardiovascular disease that increased last over 30 years1. The causes major is obesity, with the major cause of insulin mechanisms in peripheral tissue2. Some sign that obesity can increase cardiovascular disease risk is high LDL cholesterol, high triglyceride, high blood pressure, and low HDL cholesterol, which all be associated with p, or-inflammation in the adipose tissue that can lead to a flux of fatty acid in hepatic2.

 

Obesity can change some mediators that link with macrophages in adipose tissue.This can make various molecular mechanisms have been implicated in induced inflammation and hypertrophy, such as modulating the peroxide, some proliferator-activates-receptor (PPARs)3. PPARs are a class of ligand-activated nuclear hormone receptor that binds with PPAR-responsive regulatory element (PPRE) and heterodimerization with retinoid X receptors (RXR) which contribute to specific genes4. In regulating some biology, lipids, glucose metabolism, and overall energy homeostasis are responsible for PPARs3.

 

Lampeni, Ardisia humilis Vahl has sinonim such asAnguillariasolanacea ex A.DC5. Lampeni was an Indonesian name for a plantisund in Peucang, Ujungkulon National Park island6. A woody plant is known as Lampeni, also known as Ardisia humilis Vahl, a member of the Magnoliatae Magnoliatae family member. Folk medicine experts utilized this plant for various illnesses, such as vertigo, as a stimulant for skin ulcers, antioxidant, and anti-diarrheall7,8. Samal, 2013 study found that feeding Swiss albino rats alcohol extract with a dose of 200mg/kg BW could decrease LDL, triglycerides, total cholesterol, and VLDL and increase HDL. It is considered that the phytochemicals and -amyrin, which are found in Lampeni leaves, may be potential for this biological activity9.

 

Currently, natural products have a large portion as pharmacological agents, particularly in disease therapies10. The pharmacological natural product remedies have been screened using high throughput approaches in the drug discovery process. Utilizing a mix of chromatographic and spectral techniques, the constituents of numerous medicinal plants have been investigated, extracted, isolated, and identified.Most phytopharmaceuticals have an incompletely understood exact mechanism of action11. Predict the gene networks that are regulative components of therapeutic a novel technique to gain knowledge about how active substances carry out tolerance. Drug development is currently experiencing an effectiveness crisis exacerbated by ineffective, primarily single-target and symptom-based methods instead of mechanistic ones12. Instead,pharmacology, which Hopkins first used in 2007, is predicated on the idea that numerous highly effective medications impact many targets rather than just one13.

 

Through the integration of systematic medicine and information science, network pharmacology is becoming a cutting-edge field in the study of drugs.Network pharmacology is integrated with the in-silico method to build a "protein-compound/disease-gen" network and uncover the processes behind the collaborative therapeutic advantages of conventional drugs14. An overview of the technique to highlight the latest developments in molecular docking approaches with time and more advancements in processing capacity and hardware ability, these recent innovations will hopefully finally reach the full potential of this discipline while progressively improving accuracy15.

 

MATERIALS AND METHODS:

Identification of Lampenileaf'ss bioactive phytoconstituents and target screening:

Identification of Lampeni leaf bioactive phytoconstituents from the KNApSAcK Family database (http://www.KNApSAcKfamily.com/) and Dr.Duke'ss Phytochemical, Ethnobotanical Databases (https://phytochem.nal.usda.gov/phytochem/search) and some journals.The PubChem database was used to verify the chemical composition of the metabolites of Lampeni leaf (https://pubchem.ncbi.nlm.nih.gov), and SMILES (Canonical Simplified Molecular Input Line Entry System) were extracted16. The Marvin Sketch software v. 5.2.5.1 was used to build the chemical structure.

 

Biological activity and protein targets of the phytoconstituents of Lampeni leaf (Ardisia humilis):

The biological activity and target proteins of Lampeni leaf phytoconstituents in hyperlipidemia were predicted with the Way2Drug PASS Online (http://way2drug.com/passo online/) in binding with a probability activator (Pa)score of 0,7 (70%).Pa value > 0,7 denotes a high degree of similarity between the input chemicals and those demonstrated in the database to treat hyperlipidemia effectively.

 

ADMELab v.2.0 (https://admetmesh.scbdd.com/), an internet service that estimates the likely druglike property based on Lipinski's rule of five, was used to predict the drug-likeness property of the phytoconstituents and Swiss Target Prediction (Probability >0) (http://www.swisstargetprediction.ch/) with the use of canonical SMILES.Eachprotein'ss gene ID was obtained from UniProt.The target protein that will be dockinghas to Ramachandran plot analysis17.

 

Network construction and analysis of GO functional enrichment:

The STRING database v.11.5 (https://string­db.org/) was used to examine the protein interactions in the hyperexamine.The protein interactionsively determines the processes underlying biological processes and aids in obtaining more useful data on gene function.The pathways were identified using the  KEGG (Kyoto Encyclopedia of Genes and Genomes) database (https://www.genome.jp/kegg/pathway.html). Cytoscape v.3.9.1 software was used to visualize the network pharmacology of Lampeni leaves (Ardisia humilis).Through the consideration of characteristics like degree centrality (DC), betweenness centrality (BC),closeness centrality (CC), Local average connectivity-based method (LAC), Eigenvector, and network.In this study, a node was regarded to occupy a significant position in the network and to represent the primary component or target if its three parameter values exceeded the associated median18.

 

Studies on ligand-protein docking:

As a way to save the ligands in a protein data bank (.pdb) file, MarvinSketch was used to retrieve the ligands from the PubChem chemical database in a Three Dimensional (3D) structure data format (.sdf), minimize them using the mmff94 force field, and then saved19. The generated protein followed water and unimportant ligand deletion, hydrogen atom addition, and optimization of missing atoms before being saved in pdbqtformat.The protein structure was constructed using Discovery Studio Visualizer v.2021 by eliminating water and heteroatoms. 

 

Ligands were docked with the corresponding protein molecules using AutoDock v.4.2.The Grid Box on the Run Vina under Vina Wizard must be chosen; ensure the box is inside the protein's active site.Finally, have everything ready, start Vina, and wait to download binding affinity data.According to the outcome, the isolate with the lowest (highest negative binding affinity, kcal/mol).The YASARA software is used to validate the protein and determine its RMSD (Root Mean Square Devivalidates the protein and determines) to <2 was selected.The Discovery Studio Visualizer v.2021 was used to view the ligand-protein complex.This research was carried out by a laptop Lenovo Yoga 7-14ITL5 - Type 82BH.

 

RESULT AND DISCUSSION:

Analyze the Ardisia humilis Effective Compounds and Potential Targets:

The leaf part of Lampeni contained 64 metabolites predicted by the Ethnobotanical, Dr.Duke'ss Phytochemical, and KNApSAcK Family.KNApSAcK is a comprehensive database that details the connections between species, biological activities, and metabolites.The numerous advantages of Dr. Duke'ss phytochemical and ethnobotanical databases include free access, supporting references, and data that interact with ethnomedicinal evidence that demonstrates high significance20.

 

Using the structure of organic compounds, whether old or new, Way2Drug PASS Online predicts the biological processes of nearly 4.000 categories of physical activities with an average accuracy of 95%, allowing for quick identification of adverse compounds and cheminformatics21,22.In Figure 1., 10 compounds in Lampeni leaves used as hyperlipidemia was donePass server Way2 Drug.The highest mean probability answered compounds in Lampeni leaves, Pa Beta amyrin was there of lipid metabolism regulatory activities 0,896 was Beta amyrin.Lipid peroxidase inhibitors, insulin promoters, insulin sensitizers, fatty-acyl-CoA-synthase inhibitors, TNF expression inhibitors, interleukin-6 antagonists, and HMG-CoA synthase inhibitors are some of their additional activities.

 

 

Figure 1: Result compounds of Way2Drug PASS Online.

 

 

 

Provide experimental and computational methods for estimating solubility and permeability in discovery and development contexts.When there is the molecular weight (MWT) is larger than 500, more than 10 H-bond acceptors and 5 H-bond donors, and the estimated Log P (CLogP) is greater than 5 (or MlogP> 4.15), the called''the rule of five'' suggests that a higher likelihood of poor absorption or penetration23. Table 1 mentions the compounds included inLipinsky'ss role of five.

 

 

Figure 2: Venn diagram containing the targets connected to compounds and hyperlipidemia


 

Table 1: Compounds included inLipinsky'ss role of five parameters.LogP: Log of the water-octanol split condition using Ghose andCrippen'ss method; HBD: Hydrogen-bond donor; HBA: Hydrogen-bond acceptor; BBB:Blood-brain barrier

PubChem ID

Compounds

Lipinsky

Molecular Weight

Log P

HBA

HBD

BBB

6454482 

Ardisinol II

Accepted

290.220

5.615

2

2

--

5281852 

Bilobol

Accepted

318.260

6.631

2

2

---

1024897

Ardisiphenol B

Accepted

376.260

6.244

4

2

---

6383665 

Maesaquinone

Accepted

418.310

8.023

4

4

---

73145 

Beta amyrin

Accepted

426.390

7.713

1

1

---

73145 

Embelin

Accepted

294.180

4.935

4

4

---


We identified 380 target genes, leaving out those with a probability of 0.We also compiled a list of 7152 genes linked to hyperlipidemia from the databases and identified 173 genes overlapping with Lampeni leaves (Figure 2).The result of target gen prediction using the Swiss Target Prediction database.The metabolite content of Lampeni leaves has a wide range of potential targets in the body, including proteins involved in hyperlipidemia.

 

Analysis of GO functional enrichment.

 

Figure 3: Screening PPI network

One hundred seventy-three gene targets were used inSTRING's analysis of the PPI network.There were 178 nodes and 1470 overall until 7 nodes and es endured extra checks. Utilizing the Cytoscape, the network was visualized and examined by topology analysis in network interaction with CytoNCA24. For the beginning screening, the cutoff was DC>54,8235294; BC>0,04742186; CC>0,58111216; LAC>14,1; Eigenvector>0,17091459; and network>36,899197. The PPI network with the highest reliability (0.900) and the seven highest connections discovered by PPI analysis are IL6, HSP90AA1, EGFR, MAPK3, SRC, PPARG, and STAT3 (Figure 3).

 

 

 


 

A

 

B

C

D

E

Figure 4: The top 20 pathways by number of genes were discovered and retrieved.(A) Enrichment GO; (B) GO Biological process (BP); (C) GO Celular component (CC); (D) GO Molecular function (MF); (E) KEGG: Kyoto Encyclopedia Genes and Genomes, GO: gene ontology.

 


891 GO items were taken from a database, including 534 BP items, 161 MF items, 70 CC items, and 126 KEGG pathways. We also chose the top 20 BP, CC, and MF catalogs for visualization (Figure 4). 534 BP The normal axis of the histogram represents the level of enrichment.Because of our BP results, the primary focus of the active Lampeni leaves components functions in hyperlipidemia was a response to lipids and hormones.Most of theduct'ss clear receptors have activity and ligand-activated transcription factor activity. The abundance of GO activities may perhaps explain leaves is effective in treating hyperlipidemia.

 

Result of Molecular docking:

The grid box is used as the docking target in this investigation, which uses oriented docking. Target proteins are rigid in oriented docking, whereas ligands are flexible. Protein targets and ligands that have already received Lamarckian Genetic Algorithm (LGA) methodology are needed for docking with AutoDock. Molecular anchoring data is utilized for predicting binding structure using bond energy, represented as binding affinity position and bond type25. The result of binding affinity, nevertheless, could not predict the pharmacology and could not affectthe outcome; additional experimental verification is required, either by in vitro or in vivo experiments.However, docking is an important first step in developing and designing stages over in vitro and in vivo research26.

 

Using the Autodock tools, we utilized molecular docking to determine that the core target and the Lampeni leaves active compounds can bind (Fig 6). A <-5.0kcal/mol binding affinity indicated good binding, and -7.0kcal/mol indicated significant binding activity27. In Our research, active compounds of Lampeni leaves with the seven highest target predictions. The result showed Beta amyrin that significantly docked to EGFR as well as with MAPK3 were -9,6Kcal/mol, IL6 by -9,0 Kcal/mol, and Src by -8,9Kcal/mol (Table 2).

 

Table 2: Collect the binding affinity and match the atom for each ligand

S.

No

Protein

Compound

Binding affinity (kcal/mol)

Match atom

1

IL6 (1alu)

TLA (control)

-8,0

12

Ardisinol II

-5,5

21

Bilobol

-5,8

23

ArdisiphenolB

-6,0

29

Maesaquinone

-5,7

32

BetaAmiryn

-9,0

32

Embelin

-5,3

23

2

HSP90AA1 (4bqg)

50Q (Control)

-8,3

14

Ardisinol II

-8,5

21

Bilobol

-8,2

23

ArdisiphenolB

-8,4

29

Maesaquinone

-7,3

32

BetaAmiryn

-7,4

23

Embelin

-7,2

23

3

EGFR (5uga)

8BM (Control)

-9,3

40

Ardisinol II

-7,7

21

Bilobol

-7,5

23

ArdisiphenolB

-7,1

29

Maesaquinone

-7,2

32

BetaAmiryn

-9,6

32

Embelin

-6,4

23

4

MAPK3 (2zoq)

5ID (Control)

-8,1

27

Ardisinol II

-6,6

21

Bilobol

-7,3

23

ArdisiphenolB

-5,9

29

Maesaquinone

-5,7

32

BetaAmiryn

-9,6

32

Embelin

-6,0

23

5

SRC(2h8h)

H8H (Control)

-9,6

41

Ardisinol II

-7,1

21

Bilobol

-7,4

23

ArdisiphenolB

-7,7

29

Maesaquinone

-7,4

32

BetaAmiryn

-8,9

32

Embelin

-7,1

23

6

PPARG(7awc)

BRL (Control)

-8,8

27

Ardisinol II

-7,6

21

Bilobol

-8,1

23

ArdisiphenolB

-6,0

29

Maesaquinone

-6,1

32

BetaAmiryn

-8,1

32

Embelin

-5,9

23

7

STAT3 (6njs)

KQV (Control)

-9,5

65

Ardisinol II

-5,6

21

Bilobol

-6,1

23

ArdisiphenolB

-4,8

29

Maesaquinone

-4,7

32

BetaAmiryn

-7,6

32

Embelin

-5,4

23

 

One of the most effective methods for evaluating and predicting the atomic-level binding reactions among receptors and small molecules is molecular docking28. The docking result was improved by analyzing the RMSD and matching the atom in the YASARA view.The obtained RMSD value is 2 Ĺ29. To verify the docking technique, the RMSD is used to determine the success of a combination mode projection.PPARG (The peroxisome proliferated-activated receptor gamma) plays a crucial part in the development of atherosclerosis.Through many methods, including reducing inflammation, enhancing cholesterol efflux, and stabilizing atheroma plague30.

 

Table 3: The grid box size values and grid center are based on docking data.

No

Protein

Grid box

Grid center

x

Y

z

x

y

z

1

IL6

40

40

40

-7.722

- 12.940

0.048

2

EGFR

40

44

40

13.777

- 3.416

-32.497

3

MAPK3

49

40

41

52.575

22.575

83.072

4

Src

40

40

40

20.192

21.122

58.212

 

The protein-ligand complexes showed varied docking across each homolog,which was dynamically effective (Figure 5).

 

 

 

 

A

 

 

 

 

B

 

 

 

 

C

 

 

 

D

Figure 5: A topological representation of the hydrophobicity and residues interaction in the 2D graphic of the binding pocket areas of each protein with each Beta amyrin homolog shows molecular docking.(a) IL6-complex; (b) MAPK3-complex; (c) EGFR-complex (d) SRC-complex; hydrophobic: brown, hydrophilic: blue, neutral: white.

 

The interaction bonds between crucial residues and ligands were depicted in a 2D figure for several targets. The binding potentials were shown by the hydrogen bonds, van der Waals force, attractive charges, salt bridges, etc.Space tension that is not advised for introduction was caused to unfavorable bumps (red callout)31. The hydrophobic effect and hydrogen bonding are typically considered to role essential in stabilizing the target site, which also helps to change binding affinity and therapeutic efficacy32. Water and hydrogen bonds constantly compete in extracellular media.The mechanisms and amounts of hydrogen bonds contribution to protein-protein docking are not well known since water in bulk obstructs reusable biological reactions, and entropy-enthalpy reimbursement occurs when the process of hydrogen bond creation.A problem that persists with poorly understood mechanisms is whether the result of hydrogen bonds affects protein-protein docking33.

 

Beta amyrin formed a hydrogen bond with Arg182 and five pi-Alkyl hydrophobic interactions with amino acids (Arg179, Lys171, Leu178, Leu33, and Lau 30) in target IL6.Different complex bonds between Beta amyrin and MAPK3, which has a hydrogen bond on Arg165 and Arg87. Residue interactions with EGFR targets include Ala722, Lys875, Phe723, Phe854, Cys797, Leu844, and Val 726.In contrast, the exchange of residues with SRC forms hydrogen bonds in Glu178 and Thr179.

 

Inflammation triggered by interleukin 6 can contribute to age-related illnesses like atherosclerosis. Atherosclerosis is a condition that develops with time and is defined by the accumulation of lipids34. EGFR-mediated autophagy activation controls lipid levels35. The tyrosine kinase epidermal growth factor receptor, also known as EGFR, is abundantly expressed outside many kinds of cells.And activates several important signaling pathways in differentiation and metastasis, cell proliferation, cell survival, and tolerant activation36. The mammalian target of Rapamycin(mTOR) inhibition adversely impacts MAPK/ERK pathway (The mitogen-activated protein/extracellular signal-regulated kinase) in association with EGFR internalization and degradation.We further show that Src kinase stimulation demonstrates EGFR uptake in response to mTOR inhibition37.

 

CONCLUSION:

A pharmacology network for lampeni leaves (Ardisia humilis) shows the relationship between the metabolic products they contain, theirtargets'' surface receptors and intracellular proteins, and hyperlipidemiasignaling pathways.Through the molecular docking procedure, the compounds obtained Beta amyrin is estimated to be successful against hyperlipidemia through IL6, MAPK3, EGFR, and Src pathway.This information could be utilized for designing and screening in silico new compounds in Lampeni leaves with improved antihyperlipidemic activity for in vitro experimental validation.Involving aspects of the biological, medical, and pharmaceutical fields is molecular pharmacology38.

 

CONFLICT OF INTEREST:

The author declares that they have no competing interests.

 

ACKNOWLEDGMENTS:

The author thanks the BRIN for funding the Indonesia Advances Innovation Research (IAIR) 2022-2023.

 

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Received on 05.05.2023            Modified on 01.09.2023

Accepted on 09.11.2023           © RJPT All right reserved

Research J. Pharm. and Tech 2024; 17(5):2009-2017.

DOI: 10.52711/0974-360X.2024.00318