KR101990688B1 - The method of prediction of carcinogenesis in colon cancer and prevention of colon cancer using altered expression in lipid metabolites - Google Patents

Abstract

The present invention relates to a method for predicting oncogenesis of colon cancer using a change in the expression level of a lipid metabolism and a method for preventing colon cancer, wherein the expression pattern of each lipid metabolism is analyzed, , Which can predict the early change of cancer that can not be confirmed by early diagnosis of colon cancer and clinical examination such as endoscopy through blood markers and it is possible to prevent personalized colon cancer.

Description

[0001] The present invention relates to a method for predicting carcinogenesis of colon cancer using a change in expression of a lipid metabolite and a method for preventing colon cancer,

The present invention relates to the prediction of carcinogenesis process of colon cancer using the change of expression of lipid metabolism and a method of preventing colon cancer.

Colorectal cancer belongs to the 5 most common cancers after thyroid cancer and stomach cancer. According to the data of the Ministry of Health and Welfare in 2014, 15.5% of male patients and 10.3% of female patients are male and female. In the second and third place, respectively. According to age group, colon cancer is the most common cancer among women aged 65 and over, and colorectal cancer is the second most common cancer after thyroid cancer. Cancer is more difficult to treat and recover from the end of cancer, so prevention and early diagnosis of cancer rather than treatment after cancer is effective in many ways. However, current colon cancer prevention strategy is to detect and remove colon cancer precursor lesion at the adenoma stage where the pathologic change in the multi-stage carcinogenesis process begins to appear through the selective colonoscopy, and it acts as a pre-treatment. It does not.

Although early molecular diagnosis has been developed to detect and diagnose colon cancer molecular markers from blood samples of patients with colorectal cancer in relation to the prevention of colon cancer, there is a need for a high risk group in early carcinogenesis, It is a difficult situation to distinguish and diagnose. Many genes and many environmental factors are involved in the development of large numbers of cancers including colorectal cancer. Therefore, it is a reality that a single gene mutation is not a definite factor for predicting and treating cancer. Although genetic predisposition is not the sole cause of disease outbreak, it is not possible to remove organs only because there are mutations in some genes. As a response to preemptive prevention, Do.

Therefore, the development of technology with large-scale investment in early diagnosis and target treatment rather than predicting and preventing the occurrence of cancer is mainly performed.

Most of the diseases, including cancer, are caused by changes in the metabolic pathway, so the final produced and changed metabolites are important. Most of the metabolites, which are collectively referred to as metabolites, are occupied by lipid metabolites, which are classified as lipid bodies, and lipid metabolites play an important role in the signaling control system for maintaining homeostasis.

Research to identify lipid bodies from the overall system in the development of cancer is in the beginning stages. Specifically, Dr. M. Celeste Simon of the Howard Hughes Medical Institute of the United States conducted an analysis of transcript profile and metabolism-related gene expression in renal cancer and found that a decrease in the gluconeogenic enzyme fructose-1, 6-bisphosphatase 1 (Nature, 2014). It has been reported that it plays an important role in the disease. In addition, Jan Budczies, professor at Charite University in Germany, studied the abnormal equilibrium state of glutamate-glutamine in breast cancer patients and suggested that glutamate may be a new biomarker for breast cancer (Inter J Cancer, 2015) .

The changes in the lipid body, which is the result of synthesizing the information of the schematic genome, the ordering transcript, and the product protein, can finally represent the activation of the new pathway and signaling substance, and provides a snapshot of the physiological state do. In addition, 'allostatic adaptation' refers to another mechanism that acts to maintain stability when a lipid metabolic pathway is a problem. When the stability of activation of the alternative pathway due to the adaptation of the ideal pathway reaches its limit, The control system becomes weak and passes through the limit, leading to cancer. In addition, an integrated understanding of regulatory control system changes at the beginning of carcinogenesis will provide essential information for prevention of preemptive cancer development, and lipid analysis, which can collectively understand changes in metabolism and signal transduction in complex biological systems, It is important in the early stage of carcinogenesis and can be a sign of early carcinogenesis and preemptive prevention because it can reflect the integrated phenomenon of the host control system. When the cancerization process begins, all cells in the same area become affected. Depending on the degree of critical variation some develop into cancer, but some look normal. This is called 'field cancerization', which is a clinically normal state in which cells of the same area as cancer cells are all affected, but some of them have the potential to grow into cancer, Factors are accumulated and the possibility of tumor development becomes higher. In other words, the area surrounding colon cancer by field cancerization is the stage where cancer has already started.

Therefore, the present inventors analyzed the overall lipidomics of endoscopically normal tissues around colorectal cancer rather than the blood of a patient diagnosed with colon cancer using the concept of zone cancer, And to find markers at the early stage of cancer. That is, when the results of the expression analysis of the lipid group of the present invention are used, early detection of a high risk group in which colon cancer is likely to occur, and metabolism strategies in which lipid metabolism changes occur in tissues are inhibited or alternatives are activated It will be possible to safely and efficiently prevent precancerous colon cancer.

Korean Patent Publication No. 2016-0147480

It is an object of the present invention to provide a method for predicting the carcinogenesis process of colon cancer using a change in the expression level of a lipid metabolism and a method for preventing colon cancer.

In order to achieve the above object,

1) analyzing the degree of expression of a lipid metabolite of a biological sample isolated from a subject suspected of having colon cancer;

2) Classification of lipid metabolites increased or decreased by 1.5 times or more compared with the expression level of lipid metabolism of biological samples isolated from normal individuals, and classified into the following eight groups:

It is known that fatty acids (FA), glycerolipids (GL), glycerophospholipids (GP), polyketides (PK), prenol lipids (PR), saccharolipids , SL), sphingolipid (SP) and sterol lipids (ST); And

3) In the above lipid metabolites, the proportion of lipid metabolites belonging to fatty acids (FA) is 4.6 to 5.9%, the ratio of lipid metabolites belonging to glycerolipids (GL) is 5.3 to 13.2% The ratio of lipid metabolites belonging to glycerophospholipid (GP) is 15.0 to 25.2%, the ratio of lipid metabolites belonging to polyketide (PK) is 19.9 to 31.6%, prenol lipids (PR) ) Of the lipid metabolites belonging to Sphingolipid (SP) is 5.5 to 6.6%, the ratio of lipid metabolites belonging to sphingolipid (SP) is 19.6 to 30.6% or lipid metabolites belonging to sterol lipids (ST) are 5.5 To 7.3%, it is determined that the cancer is a high-risk group having a high possibility of colon cancer. The present invention provides an information providing method for early diagnosis of colon cancer.

The present invention relates to a method for providing information for diagnosis or prevention of colorectal cancer using a change in the expression level of a lipid metabolite in a tissue surrounding a colorectal cancer or a colon cancer tissue, , It is possible to confirm whether or not the carcinogenesis stage has started in the colon tissue which looks like a colon cancer. It can predict the early change of cancer which can not be confirmed by early diagnosis of colon cancer and clinical examination such as endoscopy, Prevention is possible.

1 is an experimental schematic diagram for the analysis of lipid metabolism in colonic tissue:
Figure 1a: Control and experimental grouping;
Figure 1b: Schematic drawing of the control and experimental groups.
FIG. 2 is a graph showing the distribution ratio of each lipid metabolite group to a lipid metabolite in a colorectal cancer tissue or a surrounding tissue of a colorectal cancer which expresses 1.5 times or more as compared with a normal tissue:
Figure 2a: Percentage distribution of each lipid metabolite group to lipid metabolites of peri-tumor-normal tissue;
Figure 2b: Distribution of each lipid metabolite group to the lipid metabolites of colorectal cancer tumors.

Hereinafter, terms used in the present invention will be described.

The term "metabolite" refers to a low-molecular compound having a molecular weight of 1,000 or less synthesized in vivo, and may include products of cellular metabolism such as glucose, cholesterol, ATP, and lipid. The above-mentioned metabolite in the metabolism body is referred to as a lipid body.

Lipids include lipids, waxes, sterols, fat soluble vitamins (A, D, E, K), monoglycerides, diglycerides, triglycerides and phospholipids. ≪ / RTI >

Lipids are defined as hydrophobic or amphiphilic small molecules. Due to its amphiphilic nature, some lipids form structures such as vesicles, multilayer / monolayer liposomes, or membranes in aqueous environments. Biological lipids are derived entirely or partly from two different biochemical subunits or building-blocks such as the ketoacyl group and the isoprene group. In this context, lipids are composed of fatty acids (FA), glycerolipids (GL), glycerophospholipid (GP), polyketide (PK) (resulting from the condensation of ketoacyl subunits) Can be divided into eight categories: prenol lipids (PR) (resulting from the condensation of isoprene subunits), saccharolipids (SL), sphingolipids (SP) and sterol lipids (ST) have.

The fatty acids include fatty acids and conjugates, icosanoids, fatty alcohols, fatty esters, and fatty amides. But is not limited thereto.

The fatty acid is a hydrocarbon-tailed lipid having a carboxyl group (-COOH) and a methyl group (-CH ₃ ) at both ends in a long chain having 4 to 24 carbon atoms. The fatty acid has a hydrophilic end showing polarity and a hydrophobic hydrophobic end, and most fatty acids are cis-shaped, except for some hydrogenated fats. Fatty acids are one of the most basic types of lipids in living organisms. They are also used to make lipids of the complex structure of cell membranes. They are also used in the production of lipids such as prostaglandin, leukotriene, thromboxane, , And fatty amides including anandamide.

The glycerolipids (GL) may be one or more selected from the group consisting of monoradylglycerol, Diradylglycerol, Triradylglycerol and glycosylglycerol, It does not.

The glycerol lipids can be largely divided into the number of glycerol bound to a fatty acid by a structure in which glycerol is ester-linked. Glycerol is the most popular form of triglyceride made from three glycerol, often called triacylglycerol, and the triglyceride is stored in adipose tissue for energy storage in animals. There are also glycosylglycerols, including digalactosyldiacylglycerol found in the membranes of plants, seminolipids found in mammalian sperm, and the like.

The glycerophospholipid (GP) may be at least one selected from the group consisting of glycerophosphocholine, glycerophosphoserine, glycerophosphoethanolamine, glycerophosphoinositol, glycerophospholipid, At least one member selected from the group consisting of Glycerophosphoglycerol, Glycerophosphate, Phosphatidylcholine, Phosphatidylethanolamine, Phosphatidylserine, Phosphatidylinositol and Phosphatidic Acid. But is not limited thereto.

The glycerophospholipid has a phospholipid structure including glycerol with two fatty acids and one phosphoric acid ester bond, and is a major component of the phospholipid bilayer of eukaryotic cells.

The polyketide (PK) may be at least one selected from the group consisting of Cycloserine, Dihydrochalcone, Fisetin-3-glucoside and Mauritianin. But is not limited thereto.

The polyketide is a polymer of an acetyl unit and a propionyl unit and appears in a secondary metabolite of various organisms such as animals, plants and fungi. The polyketide is glycosylation, methylation, hydroxylation hydroxylation) and oxidation (oxidation). Polyketides can act as highly bioactive substances such as fungi mycotoxin and erythromycin, an antibiotic.

The prenol lipids (PR) may be at least one selected from the group consisting of isoprenoid, quinone and hydroquinone, polyprenol, but is not limited thereto .

The prrenol lipid may be in the form of linear alcohols or diphosphates, and quinones and hydroquinones may be in the form of quinone cores and isoprenoid tails. Prokaryotes synthesize polyprenols, called bateroprenolates, which are unsaturated in which oxygen is bonded to terminal isoprenoids. In animals, synthesis of polyprenol, called dolicholone, in which terminal isoprenoid is reduced do. The prenol lipid is synthesized as a precursor of isopentenyl diphosphate and dimethylallyl diphosphate. Generally, it is produced via mevalonic acid (MVA) pathway, and a simple structure of isoprenoid Some of the strains are made through methylerythritol phosphate pathways in some bacteria and plants, including E. coli . Carotenoids, which are precursors of major vitamin A of isoprenoids in prednisol lipids, are representative, and vitamin E and vitamin K are representative examples of quinone and hydroquinone.

The saccharolipids (SL) may be at least one selected from the group consisting of acylaminosugar, acyltrehalose, acylaminosugars glycan and acyltrehalose glycan, , But is not limited thereto.

The saccharose lipid is a compound having a structure in which a fatty acid is directly connected to a sugar backbone. The saccharose lipid forms a structure suitable for forming a membrane bilayer. The saccharose monosaccharide of the saccharose lipid is glycerol and glycerol, Backbone. An acylated glucosamine precursor of lipid A, which constitutes a lipopolysaccharide of gram-negative bacteria, is an example of the most well known saccharose lipid.

The sphingolipid (SP) may be at least one selected from the group consisting of phosphosphingolipid, sphingoid base and ceramide, but is not limited thereto.

The sphingolipid is a phospholipid containing no glycerol and has a sphingoid base backbone. Ceramides have an N-acylated sphingoid base head and additional hair-free forms, including ceramide, dihydroceramide and phytoceramide . Phosphate sphingolipids are a form in which a phosphorylated molecule is bound to a 1-hydroxyl group of ceramides, and in mammals, sphingomyelin in which phosphocholine phosphate or phosphoethanolamine molecules are bonded is typical. The pingotide base is representative of the mammalian sphingosine.

The sterol lipids (ST) may be at least one selected from the group consisting of cholesterol and derivatives thereof such as cholesteryl ester, but are not limited thereto.

Typical examples of the sterol lipids include steroid fused with four cyclic nucleus structures. Typically, steroids are involved in various regulatory mechanisms in the body such as estrogen, androgen, and progestogen. In addition, cholesterol oxidative derivatives bile acid (bile acid) and vitamin D (vitamin D) are also available. Various biomolecules such as β-sitosterol, stigmasterol and fungus ergosterol Like glycerophospholipid and sphingomyelin, are important components in the cell membrane.

In the present invention, 'peri-tumor-normal' is a tissue of field cancerization state, and the zone cancer is clinically observed in a state where cells in the same area as cancer cells are all affected Is considered normal, but some of them have the potential to grow into cancer, which means that the risk factors are accumulated in the corresponding region and the possibility of tumor development is increased.

Hereinafter, the present invention will be described in detail.

The present invention provides a method for providing information for early diagnosis of colon cancer comprising the steps of:

 1) analyzing the degree of expression of a lipid metabolite of a biological sample isolated from a subject suspected of having colon cancer;

2) Classification of lipid metabolites increased or decreased by 1.5 times or more compared with the expression level of lipid metabolism of biological samples isolated from normal individuals, and classified into the following eight groups:

It is known that fatty acids (FA), glycerolipids (GL), glycerophospholipids (GP), polyketides (PK), prenol lipids (PR), saccharolipids , SL), sphingolipid (SP) and sterol lipids (ST); And

3) In the above lipid metabolite group, the proportion of lipid metabolites belonging to fatty acids (FA) is 4.6 to 5.9%, the ratio of lipid metabolites belonging to glycerolipids (GL) is 5.3 to 13.2% The ratio of lipid metabolites belonging to glycerophospholipid (GP) is 15.0 to 25.2%, the proportion of lipid metabolites belonging to polyketide (PK) is 19.9 to 31.6%, prenol lipids (PR) The ratio of lipid metabolites belonging to sphingolipid (SP) is in the range of 5.5 to 6.6%, the ratio of lipid metabolites belonging to sphingolipid (SP) is in the range of 19.6 to 30.6%, or the lipid metabolites belonging to sterol lipids (ST) 7.3%, a high risk group with a high likelihood of developing colorectal cancer.

The biological sample of step 1) may be a colon tissue.

The degree of expression of the lipid metabolism in the step 1) can be confirmed by, for example, mass spectrometry, light absorption analysis, gas chromatography or emission spectrometry, but is not limited thereto.

In a specific embodiment of the present invention, in order to analyze the lipid metabolism of the colon tissue, the colon cancer tissue was collected from a healthy person without risk factor for colon cancer, and was used as a control. Tumor tissues and peri-tumor-normal colon tissues were collected and used as an experimental group. The present inventors examined the expression level of lipid metabolites in the normal colon tissue of the control group, the colorectal cancer tissue of the experimental group and the surrounding tissues of the colon cancer and found that the expression of the lipid metabolism in the surrounding tissues of the colon cancer was 1.5 times or more The number of lipid metabolites in the ascending / diverging tissues was 103 out of 4048 of the total, and the expression of lipid metabolites in the colon cancer tissues was 1.5 times or more increased / Were identified as 269 out of a total of 4,049

In addition, the present inventors selected only lipid metabolites from the surrounding tissues of colon cancer, which showed an increase or decrease of expression level 1.5 times or more as compared to normal colon tissues. As a result of examining the distribution ratio of these metabolites, the lipid metabolism group belonging to polyketide (PK) and the lipid metabolism group belonging to sphingolipid (SP) accounted for the largest proportion (31.0% and 30.10%, respectively) (see FIG.

In addition, the present inventors selected only lipid metabolites of colorectal cancer tissue whose expression level increased or decreased by 1.5 times or more as compared with normal colon tissues. As a result of examining the distribution ratios of these metabolites, glycerophospholipid , GP) and the lipid metabolite group belonging to sphingolipid (SP) accounted for the largest percentage (24.65% and 21.13%, respectively) (see FIG. 2B and Table 2).

Therefore, it was confirmed that the distribution of lipid metabolites in the colon cancer tissue and the colon cancer tissue in the area-induced cancer state is different, and the initial stage of colon cancer can be predicted through the distribution of the lipid metabolism in the surrounding tissues of the colon cancer, Or to provide information for prevention.

Hereinafter, the present invention will be described in detail with reference to Examples and Experimental Examples.

EXAMPLES The following Examples and Experiments are for the purpose of illustrating the present invention, but the present invention is not limited by the following Examples and Experimental Examples.

Lipid of colonic tissue Metabolism  Expression analysis

For the analysis of lipid metabolism in the colon tissue, colon tissues were collected from 10 healthy persons without risk factors for colon cancer as shown in Figs. 1A and 1B and used as a control (control). For comparison, tumor tissues and peri-tumor-normal colon tissues of the colon were collected from 26 colorectal cancer patients and used as an experimental group. The healthy control tissues were subjected to relative quantitative analysis with experimental group samples as one control group by integrating 10 individual tissue samples to correct individual differences. Ten tissue specimens were collected from two colonoscopists using endoscopic tissue sampling forceps in the colon, and the analysis was performed after the pulverization.

Specifically, CPO2 (Covaris, USA) was used to crush the clinical tissue samples from the control and experimental groups that were kept frozen, thereby improving the efficiency of lipid extraction. To 20 mg of the tissue sample, 250 쨉 l of cold methanol (JT Baker, PA, USA) was added and vortexed for 30 seconds. Then, 500 μl of cold chloroform (JT Baker, PA, USA) was added, and the mixture was stirred for 30 seconds. Then, 180 μl of cold water (HPLC grade water, JT Baker, PA, USA) was added and stirred for 30 seconds. For cooling, each solution was stored in a -20 ° C refrigerator for 20 minutes or more before the experiment. After the treated samples were stabilized at room temperature for 10 minutes, they were centrifuged at 12000 xg for 10 minutes at 4 ° C. The lipids present in the third layer of the three separated layers (metabolite-protein-lipid from above) were extracted. When extracting, a syringe was used so that samples in different layers could not be mixed. The extracted samples were dried through a vacuum centrifuge (Bio-Rad, scanvac, USA). Each of the dried samples was dissolved in 100 μl of 20 mM ammonium formate solution containing 0.1% formic acid in a ratio of methanol: acetonitrile: water (19: 19: 2) to prepare an isopropanol (4%, 0 min; 40%, 15 min; 100%, 15.1 min; 100%, 20 min; 4%, 20.1 min; 4%, 35 min) . LC-MS (Liquid Chromatography-Mass Spectrometry) was performed using UHPLC (Agilent 1290 infinity binary LC system, USA) and mass spectrometer (Agilent 6550 iFunnel Q-TOF system, USA). Each of the prepared sample solutions was injected with 1 μl each, and the analysis was repeated three times for statistical analysis. The data obtained from LC-MS analysis were analyzed using a Metiln database (Scripps Laboratories, USA) to identify lipids with an accuracy within 20 ppm.

< Experimental Example  1> Lipids with altered expression by colonic tissues Metabolite  Confirm

Based on the lipid metabolism analyzed in Example 1, colon cancer tissues (control) and normal colon tissues (control) of the control group, and peri-tumor-normal ) Were compared with each other.

As a result, compared to normal colon tissue, the lipid metabolism in the vicinity of the colon cancer was 1.5 times or more increased / decreased by 103 of the total 4048, and compared with the surrounding tissues of colon cancer The number of lipid metabolites in the colorectal cancer tissues was found to be 269 out of a total of 4,049.

In other words, when comparing the lipid metabolites of the normal colon tissue and the surrounding tissues of the colon cancer, the expression of the lipid metabolism was remarkable, and the conventional method of predicting colorectal cancer by analyzing the difference between the tissue surrounding the colon cancer and the tissue of the colon cancer It is necessary to more closely analyze the difference between normal colon tissue and surrounding tissues of colon cancer.

< Experimental Example  2> Lipids due to colon tissue Metabolite  Check distribution

<2-1> Confirmation of distribution of each lipid metabolite group in peri-tumor-normal lipid metabolism showing 1.5 times or more expression compared to normal tissue

In Example 1, the expression of lipid metabolites in normal colon tissue and peri-tumor-normal tissue was compared with that in normal colon tissue, and the expression level of colon cancer was increased or decreased by 1.5 times or more Only the lipid metabolites of the tissues were selected, and the distribution ratio of these lipid metabolites was confirmed.

As a result, as shown in FIG. 2A and Table 1, the lipid metabolism group belonging to the polyketide (PK) and the lipid metabolism group belonging to the sphingolipid (SP) accounted for 30.10% and 31.07%, respectively Respectively.

The distribution ratio of each lipid metabolite group to the lipid metabolites of peri-tumor-normal tissues, which shows a difference of expression 1.5 times or more as compared with normal tissues Lipid metabolism group Tissue around colon cancer (%) Fatty acids (FA) 4.85 Glycerolipids (GL) 5.83 Glycerophospholipid (GP) 15.53 Polyketide (PK) 31.07 Prenol lipids (PR) 5.82 Saccharolipids (SL) 0.97 Sphingolipid (SP) 30.10 Sterol lipids (ST) 5.83 Total lipid metabolite 100

The results of the analysis of lipid metabolism around the colon cancer in Experimental Example < 2-1 > can predict the state of high possibility of colon cancer.

<2-2> Confirmation of distribution of each lipid metabolite group in lipid metabolism of colorectal cancer tumor, which expresses 1.5 times more than normal tissue

In Example 1, the expression of lipid metabolites in normal colon and colorectal cancer tissues was compared with that in normal colon tissues, and only the lipid metabolites of colorectal cancer tissues And the percentage of lipid metabolism group distribution was confirmed.

As a result, as shown in FIG. 2B and Table 2, the lipid metabolism group belonging to the spingolipid (SP) and the lipid metabolite group belonging to the glycerophospholipid (GP) Were 21.1% and 24.6%, respectively.

The distribution ratio of each lipid metabolite group to the lipid metabolism of colorectal cancer tumor, which shows a difference of expression 1.5 times or more as compared with normal tissue, Lipid metabolism group Colorectal cancer tissue (%) Fatty acids (FA) 5.63 Glycerolipids (GL) 12.68 Glycerophospholipid (GP) 24.65 Polyketide (PK) 20.42 Prenol lipids (PR) 6.34 Saccharolipids (SL) 2.11 Sphingolipid (SP) 21.13 Sterol lipids (ST) 7.04 Total lipid metabolite 100

The lipid metabolism analysis results of the experimental examples <2-1> and <2-2> showed that the distribution of the lipid metabolism in the colon cancer tissues and the colon cancer tissues was different.

Claims (3)

1) analyzing the degree of expression of a lipid metabolite in a colon tissue isolated from a subject suspected of having colon cancer;
2) Classification of lipid metabolites increased or decreased by 1.5 times or more compared with the expression level of lipid metabolism of biological samples isolated from normal individuals, and classified into the following eight groups:
It is known that fatty acids (FA), glycerolipids (GL), glycerophospholipids (GP), polyketides (PK), prenol lipids (PR), saccharolipids , SL), sphingolipid (SP) and sterol lipids (ST); And
3) In the above lipid metabolites, the ratio of lipid metabolites belonging to fatty acids (FA) is 4.6 to 5.9%, the ratio of lipid metabolites belonging to glycerolipids (GL) is 5.3 to 13.2% The ratio of lipid metabolites belonging to glycerophospholipid (GP) is 15.0 to 25.2%, the ratio of lipid metabolites belonging to polyketide (PK) is 19.9 to 31.6%, prenol lipids (PR) ) Of the lipid metabolites belonging to Sphingolipid (SP) is 5.5 to 6.6%, the ratio of lipid metabolites belonging to sphingolipid (SP) is 19.6 to 30.6% or lipid metabolites belonging to sterol lipids (ST) are 5.5 To 7.3%, it is determined to be a high-risk group having a high possibility of colon cancer;
Wherein the information is provided for early diagnosis of colon cancer.
delete The method according to claim 1, wherein the degree of expression of the lipid metabolism in step 1) is from a group consisting of nuclear magnetic resonance spectroscopy, chromatography, ultraviolet spectroscopy, infrared spectroscopy, fluorescence spectroscopy, enzyme-linked immunosorbent assay (ELISA) Wherein the analysis is carried out using at least one selected.

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