JPH11199A - New screening of physiologically active substance - Google Patents

New screening of physiologically active substance

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Publication number
JPH11199A
JPH11199A JP16487297A JP16487297A JPH11199A JP H11199 A JPH11199 A JP H11199A JP 16487297 A JP16487297 A JP 16487297A JP 16487297 A JP16487297 A JP 16487297A JP H11199 A JPH11199 A JP H11199A
Authority
JP
Japan
Prior art keywords
follistatin
test substance
absence
candidate
mrna encoding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP16487297A
Other languages
Japanese (ja)
Inventor
Masashi Ogo
正志 尾郷
Jun Suzuki
順 鈴木
Tadahito Takahashi
唯仁 高橋
Tsutomu Soma
勤 相馬
Toshihiko Hibino
利彦 日比野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shiseido Co Ltd filed Critical Shiseido Co Ltd
Priority to JP16487297A priority Critical patent/JPH11199A/en
Publication of JPH11199A publication Critical patent/JPH11199A/en
Withdrawn legal-status Critical Current

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  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for screening an immunosuppressant, a therapeutic agent of dermatoses or a depilation preventive. SOLUTION: A keratinocyte is cultured in both of the presence and the absence of a material to be tested, and an RNA is extracted from the cultured cells. An mRNA encoding follistatin is detected from the both cultured material, and the material to be tested is selected as a candidate for an immunosuppressant, a therapeutic agent of dermatoses or a depilation preventive when the difference between the amounts of the mRNA encoding the follistatin is present between the presence and the absence of the material to be tested. The method is useful for a rough screening method for selecting a candidate for a medicine.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は生理活性物質の新規
なスクリーニング方法に関し、特に免疫抑制剤、皮膚疾
患治療剤及び脱毛防止剤の候補物質を選択するための粗
スクリーニング法に関する。
The present invention relates to a novel screening method for a physiologically active substance, and more particularly to a crude screening method for selecting a candidate substance for an immunosuppressant, a therapeutic agent for a skin disease, and an anti-hair loss agent.

【0002】[0002]

【従来の技術】サイクロスポリンAが免疫抑制剤として
有効であること(Pediatr. Nephrol.5 (5) :622-629
(1991);Bone Marrow Transplant. 8 (2) :105 ;111
(1991))及び乾鮮(J. Am. Acad. Dermatol. 14 (5 Pt
1):785-791 (1986)) やアトピー性皮膚炎(Br. J. Der
matol. 128 (2):213-216 (1993)) のごとき皮膚疾患の
治療に有効であることはすでに知られている。Nature V
ol. 374, pp.360-363(1995)にはホリスタチン(Fol
listatin)の遺伝子を欠損したマウスにおいて
皮膚、特に毛の異状が生ずることが記載されている。し
かしながら、ケラチノサイトにおけるホリスタチン遺伝
子の転写を利用してサイクロスポリン様生理活性を有す
る物質をスクリーニングする方法は知られていない。
2. Prior Art Cyclosporin A is effective as an immunosuppressant (Pediatr. Nephrol. 5 (5): 622-629).
(1991); Bone Marrow Transplant. 8 (2): 105; 111
(1991)) and dried (J. Am. Acad. Dermatol. 14 (5 Pt
1): 785-791 (1986)) and atopic dermatitis (Br. J. Der)
Matol. 128 (2): 213-216 (1993)) is already known to be effective in treating skin diseases. Nature V
ol. 374, pp. 360-363 (1995) include follistatin (Fol
It has been described that abnormalities of the skin, particularly hair, occur in mice lacking the gene for ristatin. However, there is no known method for screening a substance having a cyclosporin-like physiological activity using the transcription of the follistatin gene in keratinocytes.

【0003】[0003]

【発明が解決しようとする課題】従って、本発明は、ホ
リスタチン遺伝子の転写への影響を検出することにより
免疫抑制剤、皮膚疾患治療剤または脱毛防止剤の候補を
選択するための新規な方法を提供する。
Accordingly, the present invention provides a novel method for selecting a candidate for an immunosuppressant, a therapeutic agent for skin diseases or an anti-hair loss agent by detecting the effect of follistatin gene on transcription. provide.

【0004】[0004]

【課題を解決するための手段】従って本発明は、被験物
質の存在下及び非存在下でケラチノサイトを培養し、該
培養細胞からRNAを抽出し、ホリスタチンをコードす
るmRNAを検出し、そして被験物質の存在下と非存在
下でのホリスタチンをコードするmRNAに差がある場
合に、前記被験物質を免疫抑制剤、乾鮮やアトピー性皮
膚炎などの皮膚疾患の治療剤又は脱毛防止剤の候補とし
て選択することを特徴とする生理活性物質のスクリーニ
ング法を提供する。
Accordingly, the present invention provides a method for culturing keratinocytes in the presence and absence of a test substance, extracting RNA from the cultured cells, detecting mRNA encoding follistatin, When there is a difference in the mRNA encoding follistatin in the presence and absence of the above, the test substance as an immunosuppressant, a candidate for a therapeutic agent for skin diseases such as dryness and atopic dermatitis or a hair loss preventing agent A method for screening for a physiologically active substance is provided.

【0005】[0005]

【作用原理】サイクロスポリンAが免疫抑制剤であるこ
とは周知であり、また乾鮮やアトピー性皮膚炎などの皮
膚疾患の治療剤として有用であることも知られている。
本発明者らは、サイクロスポリンAの存在下及び非存在
下でケラチノサイトを培養し、培養細胞から全RNAを
抽出し、この全RNAから、ホリスタチン遺伝子のPC
R増幅に適するプライマー対を用いてホリスタチン遺伝
子の増幅を用いてホリスタチン遺伝子の転写を検出し、
一定量以上のサイクロスポリンAの存在下でホリスタチ
ン遺伝子の転写(従って発現)が抑制されることを見出
した。
[Principle of Action] It is well known that cyclosporin A is an immunosuppressant, and it is also known that it is useful as a therapeutic agent for skin diseases such as dryness and atopic dermatitis.
The present inventors cultivated keratinocytes in the presence and absence of cyclosporin A, extracted total RNA from the cultured cells, and, based on the total RNA, obtained the PC of the follistatin gene.
Detecting the transcription of the follistatin gene using amplification of the follistatin gene using primer pairs suitable for R amplification,
It has been found that the transcription (and therefore expression) of the follistatin gene is suppressed in the presence of a certain amount or more of cyclosporin A.

【0006】従って、サイクロスポリンAの代りに被験
物質を用いて同様の実験を行い、サイクロスポリンAと
同様の結果が得られる場合には、該被験物質が、サイク
ロスポリンAと同様のメカニズムにより免疫抑制剤や皮
膚疾患治療剤として有用であることが合理的に推定され
る。また、ホリスタチン遺伝子の欠損により毛の発生が
阻害されるから、ホリスタチン遺伝子の移写を抑制する
物質は脱毛防止に有用であることが推定される。
Accordingly, a similar experiment is performed using a test substance in place of cyclosporin A, and when the same result as that of cyclosporin A is obtained, the test substance is used in the same manner as cyclosporin A. It is rationally presumed that it is useful as an immunosuppressant or a therapeutic agent for skin diseases depending on the mechanism. In addition, since hair development is inhibited by the deletion of the follistatin gene, it is presumed that a substance that suppresses the transfer of the follistatin gene is useful for preventing hair loss.

【0007】[0007]

【発明の実施の形態】本発明において使用するケチチノ
サイトは、例えば、頭皮をコラーゲナーゼ及びディスパ
ーゼで処理することにより得られる。また、包皮由来の
ケラチノサイトは市販されており、例えばClonetics 社
から購入することができる。
BEST MODE FOR CARRYING OUT THE INVENTION Kettinocytes used in the present invention can be obtained, for example, by treating the scalp with collagenase and dispase. Keratinocytes derived from foreskin are commercially available, and can be purchased from, for example, Clonetics.

【0008】ケラチノサイトを培養するための培地とし
ては動物細胞培養用の培地であればよいが、例えばClon
etics 社のKGM(Clonetics 社の基礎培地KBM50
0mlに、2mlのウシ脳下垂体抽出液、最終濃度0.1μ
g/mlの上皮成長因子(EGF)、5.0mg/mlのイン
シュリン、0.5mg/mgのヒドロコルチゾン、50mg/
mlのゲンタマイシン及び50μg/mlのアンフォテリシ
ンBを添加したもの)が使用される。
[0008] The medium for culturing keratinocytes may be any medium for culturing animal cells.
etics KGM (Clonetics basal medium KBM50)
In 0 ml, 2 ml of bovine pituitary extract, final concentration 0.1 μ
g / ml epidermal growth factor (EGF), 5.0 mg / ml insulin, 0.5 mg / mg hydrocortisone, 50 mg / ml
ml gentamicin and 50 μg / ml amphotericin B) are used.

【0009】培養は、動物細胞培養のための常法に従っ
て液体静置培養を約37℃にて行い、およそ50〜80
%のコンフルエントに達成するまで培養を続ける。次
に、ある量の被験物質を培地に加え、さらに例えば約2
4時間インキュベートする。被験物質の量は、被験物質
の活性に異り、0〜100μg/ml程度の範囲にわたっ
て数段階の濃度で行うのがよい。
Cultivation is carried out in a liquid stationary culture at about 37 ° C. according to a conventional method for culturing animal cells.
Continue culturing until% confluency is achieved. Next, a certain amount of the test substance is added to the medium, and further, for example, about 2 hours.
Incubate for 4 hours. The amount of the test substance varies depending on the activity of the test substance, and it is preferable to perform the test in several concentrations over a range of about 0 to 100 μg / ml.

【0010】次に、インキュベーションが終った後、生
理的食塩水で1度洗浄し、常法に従って、例えばIso
gen(日本ジーン社製)を加えて全RNAを抽出す
る。次に、この全RNAに対するcDNAを常法に従っ
て合成し、ホリスタチン遺伝子を特異的に増幅すること
ができるプライマー対を用いて、前記cDNAを鋳型と
してPCR増幅を行う。
Next, after the incubation is completed, the plate is washed once with a physiological saline solution, and then, for example, Iso-isolated according to a conventional method.
Gen (Nippon Gene) is added to extract total RNA. Next, a cDNA for this total RNA is synthesized according to a conventional method, and PCR amplification is performed using the cDNA as a template, using a primer pair capable of specifically amplifying the follistatin gene.

【0011】この場合のプライマーとしては、例えば、
5′−CTCCTGCTGCTGCTGCTCTGC −3′(配列番号:1)
及び5′−TCCTCTTCCTCGGTGTCTTCC −3′(配列番号:
2)のプライマー対を用いることができる。ホリスタチ
ン遺伝子は、スプライシングにより2種類のmRNAに
転写されるので、994bpと1208bpのPCR増
幅されたDNAが期待される。PCR反応生成物を、例
えば1%アガロースゲル電気泳動にかけ、エチジウムブ
ロミド染色後、UV照射により検出することができる。
あるいは、標識したオリゴヌクレオチドプライマーによ
り検出することもできる。
[0011] As the primer in this case, for example,
5'-CTCCTGCTGCTGCTGCTCTGC-3 '(SEQ ID NO: 1)
And 5'-TCCTCTTCCTCGGTGTCTTCC-3 '(SEQ ID NO:
The primer pair of 2) can be used. The follistatin gene is transcribed into two types of mRNAs by splicing, and thus PCR-amplified DNA of 994 bp and 1208 bp is expected. The PCR reaction product is subjected to, for example, 1% agarose gel electrophoresis, and can be detected by UV irradiation after ethidium bromide staining.
Alternatively, it can be detected with a labeled oligonucleotide primer.

【0012】なお、定量的にホリスタチン遺伝子のmR
NA発現を調べる方法としては、RT−PCR以外に、
ノザンブロット法、RNaseプロテクションアッセイ
法も使用できる。また、抗ホリスタチン抗体を用い、チ
ラチノサイト細胞培養上清に分泌されるホルスタチンを
ELISA法、ウエスタンブロット法などにより定量す
ることも可能である。
It should be noted that the mR of the follistatin gene is quantitatively determined.
As a method for examining NA expression, in addition to RT-PCR,
Northern blotting and RNase protection assay can also be used. Also, using an anti-follistatin antibody, it is possible to quantify the amount of forstatin secreted into the culture supernatant of tyratinocyte cells by ELISA, Western blotting, or the like.

【0013】上記の方法において、被験物質添加量ゼロ
(無添加)の場合に比べて被験物質を添加した場合に検
出されるDNAの量が少い場合、すなわちホリスタチン
遺伝子から転写されるmRNAの量が少い場合、被験物
質は、免疫抑制剤、乾鮮やアトピー性皮膚炎等の皮膚疾
患の治療剤、又は脱毛防止剤の候補として選択される。
この方法は上記の薬剤の粗スクリーニング法として有用
であり、この方法により候補とされた被験物質は、さら
に直接的な上記治療剤用の選択試験にかけられる。
In the above method, when the amount of DNA detected when the test substance is added is smaller than that when the test substance is not added (no addition), that is, the amount of mRNA transcribed from the follistatin gene When the amount is small, the test substance is selected as a candidate for an immunosuppressant, a therapeutic agent for skin diseases such as desiccation and atopic dermatitis, or a hair loss preventing agent.
This method is useful as a crude screening method for the above-mentioned drugs, and the test substance candidate by this method is subjected to a further direct selection test for the above-mentioned therapeutic agent.

【0014】また、被験物質により、被験物質非存在下
におけるよりも増幅されたDNAが多い場合、すなわち
ホリスタチン遺伝子から移写されるmRNAの量が多い
場合、あるいは、これらの量が被験物質の添加量に依存
して逆の傾向を示す場合も、該被験物質は、新たな生理
活性を有するものとして期待される。
[0014] Further, depending on the test substance, when the amount of amplified DNA is larger than that in the absence of the test substance, that is, when the amount of mRNA transferred from the follistatin gene is large, The test substance is expected to have a new biological activity even when the test substance shows the opposite tendency depending on the amount.

【0015】[0015]

【実施例】次に、本願発明を実施例によりさらに具体的
に説明する。実施例1. サイクロスポリンAによりモデル実験 ヒトの頭皮から、ケラチノサイトを次のようにして調製
した。頭皮由来表皮細胞は以下に示す通りに行った。手
術副産物として得られたヒト頭皮禿頭部(30歳男性、
頭頂部)の真皮層下半分、毛髪を取り除き、表皮層・真
皮層上半分を5mm幅で短冊状に切り、0.25%try
psin−0.02%EDTA溶液で4℃、18時間処
理した。角層をピンセットで取り除き、PBS中にて真
皮シート上面をピンセットで軽くこすり、表皮基底細胞
を浮遊させ、遠心して細胞を回収した後に、0.5%の
血清を含むK−GM(Keratinocyte Growth Medium, clo
netics)にて1日培養し、以後は血清を含まないK−G
Mにて培養した。以後、2日おきに培地交換を行った。
Next, the present invention will be described more specifically with reference to examples. Embodiment 1 FIG. Keratinocytes were prepared from human scalp in a model experiment using cyclosporin A as follows. Scalp-derived epidermal cells were performed as described below. Bald human scalp obtained as a by-product of surgery (30-year-old man,
The lower half of the dermis layer and the hair of the parietal part) are removed, and the upper half of the epidermis layer and the dermis layer are cut into strips with a width of 5 mm, and 0.25% try
The mixture was treated with a 0.02% EDTA solution at 4 ° C. for 18 hours. The stratum corneum was removed with tweezers, the upper surface of the dermal sheet was gently rubbed with tweezers in PBS, the epidermal basal cells were suspended, and the cells were collected by centrifugation. Then, K-GM (Keratinocyte Growth Medium) containing 0.5% serum was added. , clo
netics) for 1 day, after which KG containing no serum
M. Thereafter, the medium was replaced every two days.

【0016】増殖した細胞を0.05%trypsin
−0.02%EDTA溶液にて37℃、5分間処理した
のち、等量の0.1%trypsin inhibit
orで反応を止め、遠心して細胞を回収した。細胞を無
血清培地に浮遊させ5,000細胞/cm2 の密度で培養
皿に播種した。上記のようにして調製したケラチノサイ
トを、Clonetics 社製の培地KGM(500mlの基礎培
地(Clonetics 社製KBM培地、組成不明)に2mlのウ
シ脳下垂体抽出液、最終濃度0.1μg/mlのEGF、
5.0mg/mlのインシュリン、0.5mg/mlのヒドロコ
ルチゾン、50mg/mlのゲンタマイシン及び50μg/
mlのアンフォテリシンBを添加したもの)中で、75cm
2 フラスコ内で37℃にてCO2 インキュベーター中で
培養し、約80%のコンフルエントとした。
[0016] The grown cells are reduced to 0.05% trypsin.
After treatment with a 0.02% EDTA solution at 37 ° C. for 5 minutes, an equal volume of 0.1% trypsin inhibit
The reaction was stopped at or, and the cells were collected by centrifugation. The cells were suspended in a serum-free medium and seeded on a culture dish at a density of 5,000 cells / cm 2 . The keratinocytes prepared as described above were mixed with 2 ml of bovine pituitary extract and a final concentration of 0.1 μg / ml of EGF in 500 mg of a basal medium (Clonetics KBM medium, composition unknown) in a medium KGM manufactured by Clonetics. ,
5.0 mg / ml insulin, 0.5 mg / ml hydrocortisone, 50 mg / ml gentamicin and 50 μg / ml
75 ml of amphotericin B)
The cells were cultured in a CO 2 incubator at 37 ° C. in two flasks to obtain about 80% confluence.

【0017】次に、上記の培養物に、最終濃度が0.
0,1.0、及び10μg/mlとなるようにサイクロス
ポリンAを加え、CO2 インキュベーター中で37℃に
て24時間インキュベートした。次に、細胞を生理食塩
水にて1回洗浄した後、3mlのIsogen(日本ジー
ン社製)を加えて全RNAを抽出した。次に、この全R
NAに基き、常法に従ってcDNAを合成した。このc
DNAを鋳型とし、ホリスタチン増幅用プライマー対配
列番号:1及び配列番号:2を用いて常法に従ってPC
R増幅を行った。
Next, the above culture was added to a final concentration of 0.1%.
Cyclosporin A was added at 0, 1.0, and 10 μg / ml and incubated at 37 ° C. for 24 hours in a CO 2 incubator. Next, the cells were washed once with physiological saline, and then 3 ml of Isogen (manufactured by Nippon Gene) was added to extract total RNA. Next, this all R
Based on NA, cDNA was synthesized according to a conventional method. This c
Using a DNA as a template and a follistatin amplification primer pair SEQ ID NO: 1 and SEQ ID NO: 2 according to a conventional method,
R amplification was performed.

【0018】この増幅生成物を1.0%アガロースゲル
電気泳動にかけて増幅されたDNAを分離した後、エチ
ジウムブロミド染色及びUV照射により増幅されたDN
Aを検出した。この結果を図1に示す。この図から明ら
かな通り、サイクロスポリンAを10μg/ml添加した
場合、ホリスタチン遺伝子の転写が抑制された。
The amplified product is subjected to 1.0% agarose gel electrophoresis to separate the amplified DNA, and then the amplified DNA is stained with ethidium bromide and irradiated with UV.
A was detected. The result is shown in FIG. As is clear from this figure, when 10 μg / ml of cyclosporin A was added, the transcription of the follistatin gene was suppressed.

【0019】実施例2. コンフルエントの程度の影響 実施例1の方法を反復したが、サイクロスポリンAを無
添加とし、ケラチノサイト培養における細胞増殖の程度
を、50%コンフルエント、80%コンフルエント、1
00%コンフルエント、及び100%コンフルエント後
さらに2日間培養の4種類とした。
Embodiment 2 FIG . Effect of Degree of Confluence The method of Example 1 was repeated except that cyclosporin A was not added, and the degree of cell growth in keratinocyte culture was reduced by 50% confluent, 80% confluent, and 1%.
Four types of culture were performed for two days after 00% confluence and 100% confluence.

【0020】この結果を図2に示す。この図から明らか
な通り、50%コンフルエント及び80%コンフルエン
トではサイクロスポリンAの非存在下でホリスタチン遺
伝子の転写が認められたが、100%コンフルエントに
達して細胞増殖が停止した後はホリスタチン遺伝子の転
写は減少し、100%コンフルエント後さらに2日間培
養した場合には、ホリスタチン遺伝子の転写は生じなか
った。
FIG. 2 shows the result. As is clear from this figure, at 50% confluent and 80% confluent, transcription of the follistatin gene was observed in the absence of cyclosporin A, but after reaching 100% confluence and cell growth was stopped, Transcription was reduced and no further transcription of the follistatin gene occurred when the cells were cultured for another 2 days after 100% confluence.

【0021】[0021]

【配列表】[Sequence list]

配列番号:1 配列の長さ:21 配列の型:核酸 鎖の数:一本鎖 トポロジー:直鎖状 配列の種類:synDNA 配列 CTCCTGCTGC TGCTGCTCTG C 21 SEQ ID NO: 1 Sequence length: 21 Sequence type: nucleic acid Number of strands: single-stranded Topology: linear Sequence type: synDNA sequence CTCCTGCTGC TGCTGCTCTG C 21

【0022】配列番号:2 配列の長さ:21 配列の型:核酸 鎖の数:一本鎖 トポロジー:直鎖状 配列の種類:synDNA 配列 TCCTCTTCCT CGGTGTCTTC C 21SEQ ID NO: 2 Sequence length: 21 Sequence type: nucleic acid Number of strands: single strand Topology: linear Sequence type: synDNA sequence TCCTCTTCCT CGGTGTCTTC C 21

【図面の簡単な説明】[Brief description of the drawings]

【図1】図1は、ケラチノサイトにおけるホリスタチン
遺伝子の転写をサイクロスポリンAが量依存的に阻害す
ることを示す図であり、電気泳動図を示す図面代用写真
である。
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a drawing showing that cyclosporin A inhibits the transcription of the follistatin gene in keratinocytes in a dose-dependent manner, and is a drawing substitute photograph showing an electrophoretogram.

【図2】図2は、ケラチノサイトにおけるホリスタチン
遺伝子の転写が該細胞のコンフルエントの程度により異
ることを示す図であり、電気泳動の結果を示す図面代用
写真である。
FIG. 2 is a photograph showing that transcription of the follistatin gene in keratinocytes varies depending on the degree of confluence of the cells, and is a photograph substituted for a drawing showing the results of electrophoresis.

フロントページの続き (72)発明者 相馬 勤 神奈川県横浜市金沢区福浦2−12−1 株 式会社資生堂第二リサーチセンター内 (72)発明者 日比野 利彦 神奈川県横浜市金沢区福浦2−12−1 株 式会社資生堂第二リサーチセンター内Continued on the front page (72) Inventor Tsutomu Soma 2-12-1 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture Inside Shiseido Second Research Center Co., Ltd. (72) Toshihiko Hibino 2-12-, Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture 1. Inside Shiseido Daini Research Center Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 被験物質の存在下及び非存在下でケラチ
ノサイトを培養し、該培養細胞からRNAを抽出し、ホ
リスタチンをコードするmRNAを検出し、そして被験
物質の存在下と非存在下でホリスタチンをコードするm
RNAの量に差がある場合に、前記被験物質を免疫抑制
剤、皮膚疾患の治療剤又は脱毛防止剤の候補として選択
することを特徴とする生理活性物質のスクリーニング
法。
1. Keratinocytes are cultured in the presence and absence of a test substance, RNA is extracted from the cultured cells, mRNA encoding follistatin is detected, and follistatin is present in the presence and absence of the test substance. Code m
A method for screening for a physiologically active substance, wherein the test substance is selected as a candidate for an immunosuppressant, a therapeutic agent for skin diseases or an anti-hair loss agent when there is a difference in the amount of RNA.
【請求項2】 請求項1の手順において、被験物質の非
存在下よりも存在下においてホリスタチンをコードする
mRNAが少い場合に該被験物質を候補として選択す
る、請求項1に記載の方法。
2. The method according to claim 1, wherein in the procedure according to claim 1, the test substance is selected as a candidate when there is less mRNA encoding follistatin in the presence than in the absence of the test substance.
【請求項3】 ホリスタチンをコードするmRNAの検
出を、プライマー対CTCCTGCTGCTGCTCTGC(配列番号:
1)及びTCCTCTTCCTCGGTGTCTTCC (配列番号:2)を用
いるPCR増幅法により行う、請求項1又は2に記載の
方法。
3. Detection of mRNA encoding follistatin was performed using primer pair CTCCTGCTGCTGCTCTGC (SEQ ID NO:
The method according to claim 1 or 2, wherein the method is carried out by a PCR amplification method using 1) and TCCTCTTCCTCGGTGTCTTCC (SEQ ID NO: 2).
JP16487297A 1997-06-09 1997-06-09 New screening of physiologically active substance Withdrawn JPH11199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16487297A JPH11199A (en) 1997-06-09 1997-06-09 New screening of physiologically active substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16487297A JPH11199A (en) 1997-06-09 1997-06-09 New screening of physiologically active substance

Publications (1)

Publication Number Publication Date
JPH11199A true JPH11199A (en) 1999-01-06

Family

ID=15801536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16487297A Withdrawn JPH11199A (en) 1997-06-09 1997-06-09 New screening of physiologically active substance

Country Status (1)

Country Link
JP (1) JPH11199A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302546A2 (en) * 2001-10-10 2003-04-16 Tosoh Corporation Method of evaluating drug efficacy and toxicity
JP2014518099A (en) * 2011-05-30 2014-07-28 ロレアル Reconstituted scalp model and screening method for active molecules

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302546A2 (en) * 2001-10-10 2003-04-16 Tosoh Corporation Method of evaluating drug efficacy and toxicity
EP1302546A3 (en) * 2001-10-10 2003-11-26 Tosoh Corporation Method of evaluating drug efficacy and toxicity
JP2014518099A (en) * 2011-05-30 2014-07-28 ロレアル Reconstituted scalp model and screening method for active molecules
JP2017113030A (en) * 2011-05-30 2017-06-29 ロレアル Reconstructed scalp model and process for screening active molecules

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