GLP-1 receptor; MEK1; MEK2; MMP13; MMP-1; MMP-3

体外活性：Lixisenatide 保护 Ins-1 细胞（大鼠来源的 β 细胞系）免受脂质和细胞因子诱导的细胞凋亡。更重要的是，Lixisenatide 还可以防止脂毒性诱导的人胰岛胰岛素耗竭，并在体外保护胰岛素的产生、储存和胰腺 β 细胞功能。在过表达人 GLP-1 受体的 CHO-K1 细胞中进行的结合研究表明，Lixisenatide 是一种非常有效的选择性 GLP-1 受体激动剂——Lixisenatide 的结合亲和力 (Ki = 1.33 ± 0.22 nM) 约为 4 倍人类 GLP-1 的值 (Ki = 5.09 ± 1.19 nM)。在 80 多种不同的结合测定中，利西拉来未表现出与其他潜在药物靶标的任何相关相互作用，证实了其对 GLP-1 受体的高选择性激酶测定：利西拉来是胰高血糖素样肽-1 受体的短效激动剂(GLP-1R) 在体外受体结合研究中对人 GLP-1 受体的 IC50 值为 1.4 nM。它可以通过每日一次的方案进行给药。细胞测定：Lixisenatide 能够保护 Ins-1 细胞（大鼠来源的 β 细胞系）免受脂质和细胞因子诱导的细胞凋亡。更重要的是，Lixisenatide 还可以防止脂毒性诱导的人胰岛胰岛素耗竭，并在体外保护胰岛素的产生、储存和胰腺 β 细胞功能。

利西拉来的半衰期为2-4小时，与长效GLP-1肽、利拉鲁肽和阿必鲁肽相比，它被归类为短效GLP-1受体激动剂。利西拉来可以显着改善葡萄糖刺激的胰岛素分泌。在健康血糖正常的狗中，单次皮下注射利司那肽在口服葡萄糖激发后会产生剂量依赖性的血浆葡萄糖降低，与安慰剂相比，在不增加胰岛素浓度的情况下，餐后血糖波动显着降低 67%。利西拉来对狗餐后血糖波动的影响至少部分与抑制胃排空和延迟肠道葡萄糖吸收有关。在 db/db 小鼠和 ZDF 大鼠中也证实了口服葡萄糖激发后血浆葡萄糖的剂量依赖性降低。重要的是，这种活性是葡萄糖依赖性的，在生理葡萄糖浓度下没有影响。在 db/db 小鼠中，长期服用利司那肽可防止对照动物中观察到的糖耐量进行性恶化，并与糖化血红蛋白 (HbA1c) 的剂量依赖性显着降低相关。在 ZDF 大鼠中，与对照动物相比，连续皮下注射 lixisenatide 50 μg/kg/天 12 周可显着降低基础血糖并改善口服葡萄糖耐量。它没有降血糖作用，并且不会改变血糖正常大鼠的 HbA1c。利西拉来可以通过刺激胰岛细胞增殖和新生以及抑制胰岛细胞凋亡来维持β细胞质量和功能。

体外受体结合研究表明，Lixisenatide 是胰高血糖素样肽-1 受体 (GLP-1R) 的短效激动剂，对人 GLP-1 受体的 IC50 值为 1.4 nM。可以采用每日一种的方案来给药。

---

GLP-1受体结合研究。[2]
简而言之，收获了携带人重组GLP-1受体的CHO-K1细胞。含有受体的膜部分被纯化并用于。。。 ZP10A与人GLP-1受体的结合。GLP-1（7-36）酰胺与CHO-K1细胞中表达的人GLP-1受体结合的半数最大抑制（IC50）浓度为5.5±1.3 nM，该值在GLP-1与胰岛细胞系中发现的内源性受体和COS-7细胞中表示的重组受体结合的报告范围内（Goke和Conlon，1988；Goke等人，1989；Fehmann和Habener，1991；Thorens，1992；Wheeler等人，1993）。IC50。。。

Lixisenatide 能够预防 Ins-1 细胞（一种源自大鼠的 β 细胞系）中由脂质和细胞因子引起的细胞凋亡。更重要的是，利西拉来可以在体外维持胰岛素合成、储存和胰腺β细胞功能，并防止脂毒性诱导的人胰岛胰岛素耗竭。

Pphosphate-buffered saline, pH 7.4; 0.01, 0.1, 1, 10, and 100 nmol/kg; i.p.
Male db/db mice C57BLKS/J-Leprdb/Leprdb

---

ZP10A demonstrated dose-dependent improvement of glucose tolerance with an ED50 value of 0.02 nmol/kg i.p. in an oral glucose tolerance test (OGTT) in diabetic db/db mice. After 42 days of treatment, ZP10A dose-dependently (0, 1, 10, or 100 nmol/kg b.i.d.; n = 10/group), decreased glycosylated hemoglobin (HbA1C) from 8.4 +/- 0.4% (vehicle) to a minimum of 6.2 +/- 0.3% (100 nmol/kg b.i.d.; p < 0.05 versus vehicle) in db/db mice. Fasting blood glucose (FBG), glucose tolerance after an OGTT, and HbA1C levels were significantly improved in mice treated with ZP10A for 90 days compared with vehicle-treated controls. Interestingly, these effects were preserved 40 days after drug cessation in db/db mice treated with ZP10A only during the first 50 days of the study. Real-time polymerase chain reaction measurements demonstrated that the antidiabetic effect of early therapy with ZP10A was associated with an increased pancreatic insulin mRNA expression relative to vehicle-treated mice. In conclusion, long-term treatment of diabetic db/db mice with ZP10A resulted in a dose-dependent improvement of FBG, glucose tolerance, and blood glucose control. Our data suggest that ZP10A preserves beta-cell function. ZP10A is considered one of the most promising new drug candidates for preventive and therapeutic intervention in type 2 diabetes.[2]

Absorption, Distribution and Excretion
Following subcutaneous administration, the median Tmax of lixisenatide ranged from 1-3.5 hours, with no clinically relevant differences in the rate of absorption noted between possible injection sites (i.e. thigh, abdomen, or arm).
Lixisenatide is presumably eliminated via glomerular filtration and proteolytic degradation.
The apparent volume of distribution following subcutaneous administration is approximately 100 L.
The mean apparent clearance of lixisenatide is approximately 35 L/h.

---

Metabolism / Metabolites
Lixisenatide is likely catabolized via non-specific proteolytic degradation.

---

Biological Half-Life
Following the administration of multiple doses in patients with type II diabetes mellitus, the mean terminal half-life of lixisenatide was approximately 3 hours.

Hepatotoxicity
In large clinical trials, serum enzyme elevations were no more common with lixisenatide therapy than with placebo or comparator agents. In pooled safety analyses of more than 5000 patients, ALT elevations above 3 times the upper limit of normal occurred in 0.6% of both lixisenatide and placebo groups and no instances of treatment related clinically apparent liver injury were reported. Since licensure, there have been no published case reports of hepatotoxicity due to lixisenatide and the product label does not list liver injury as an adverse event. Thus, liver injury due to lixisenatide, as with other GLP-1 analogues, must be rare, if it occurs at all.
Likelihood score: E (unlikely cause of clinically apparent liver injury).

---

Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
No information is available on the clinical use of lixisenatide during breastfeeding. Because lixisenatide is a large peptide molecule with a molecular weight of 4858 daltons, the amount in milk is likely to be very low and absorption is unlikely because it is probably destroyed in the infant's gastrointestinal tract. Until more data become available, lixisenatide should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant.
◉ Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
◉ Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.

---

Protein Binding
Lixisenatide is approximately 55% bound to human plasma proteins.

[1]. Core Evid . 2011:6:67-79.

[2]. J Pharmacol Exp Ther . 2003 Nov;307(2):490-6.

[3]. Regul Pept . 2010 Sep 24;164(2-3):58-64.

Lixisenatide is a forty-four membered polypeptide consisting of L-His, Gly, L-Glu, Gly, L-Thr, L-Phe, L-Thr, L-Ser, L-Asp, L-Leu, L-Ser, L-Lys, L-Gln, L-Met, L-Glu, L-Glu, L-Glu, L-Ala, L-Val, L-Arg, L-Leu, L-Phe, L-Ile, L-Glu, L-Trp, L-Leu, L-Lys, L-Asn, Gly, Gly, LPro, L-Ser, L-Ser, Gly, L-Ala, L-Pro, L-Pro, L-Ser, L-Lys, L-Lys, L-Lys, L-Lys, L-Lys, and L-Lys-NH2 residues joined in sequence. Used as an adjunct to diet and exercise for the treatment of adults with type II diabetes. It has a role as a glucagon-like peptide-1 receptor agonist, a hypoglycemic agent and a neuroprotective agent. It is a polypeptide and a peptidyl amide.
Lixisenatide is a glucagon-like peptide-1 (GLP-1) receptor agonist used in the treatment of type II diabetes mellitus (T2DM). It is sold by Sanofi-Aventis under the brand name Adlyxin in the US and Lyxumia in the EU. Adlyxin recieved FDA approval July 28, 2016.
Lixisenatide is a recombinant DNA produced polypeptide analogue of human glucagon-like peptide-1 (GLP-1) which is used in combination with diet and exercise in the therapy of type 2 diabetes, either alone or in combination with other antidiabetic agents. Therapy with lixisenatide has not been associated with serum enzyme elevations or with episodes of clinically apparent liver injury.
See also: Insulin Glargine; Lixisenatide (component of).

---

Drug Indication
Lixisenatide is indicated as an adjunct to diet and exercise to improve glycemic control in adult patients with type II diabetes mellitus. It is also available in combination with [insulin glargine] for the same indication.
Lyxumia is indicated for the treatment of adults with type 2 diabetes mellitus to achieve glycaemic control in combination with oral glucose lowering medicinal products and/or basal insulin when these, together with diet and exercise, do not provide adequate glycaemic control. ,
Treatment of type II diabetes mellitus

---

Mechanism of Action
The activation of the GLP-1 receptor by lixisenatide results in the activation of adenylyl cyclase. This increases the concentration of cyclic adenosine monophosphate in the cell leading to the activation of protein kinase A (PKA) as well as Epac1 and Epac2. PKA, Epac1, and Epac2 are involved the in release of Ca2+ from the endoplasmic reticulum which is known as the "amplification" pathway which increases insulin release when the triggering pathway is activated. By activating this amplification pathway lixisenatide increases glucose stimulated insulin secretion.

---

Lixisenatide is a once-daily glucagon-like peptide 1 (GLP-1) receptor agonist mimicking several favorable actions of endogenous GLP-1 that result in improved glycemic control with little or no hypoglycemia and weight loss. Phase II trials have shown that lixisenatide 20 μg once daily restores first-phase insulin release in patients with type 2 diabetes and improves the second-phase insulin response. Administered once or twice daily for 4 weeks, it significantly reduced postprandial and fasting blood glucose levels, and glycosylated hemoglobin (HbA(1c)). The efficacy and safety of lixisenatide once daily is being assessed in the GETGOAL Phase III clinical trial program. Results have shown beneficial effects on HbA(1c) compared with placebo in combination with commonly used antidiabetes agents, with no increased risk of hypoglycemia and with beneficial weight reduction. Adverse effects were similar to those observed for available GLP-1 receptor agonists, the most frequent being gastrointestinal. Both GLP-1 receptor agonists and long-acting insulin analogs have demonstrated protective effects on beta cells in preclinical studies. This, along with the pronounced effect of lixisenatide on postprandial plasma glucose, provides a rationale for combining it with long-acting basal insulin analogs, in the hope that the additive effects on glycemic control combined with a potential benefit on islet cells may lead to a new treatment approach to control blood glucose better and prevent long-term complications in patients with type 2 diabetes.[1]

---

The glucagon-like peptide-1 (GLP-1) receptor represents an established therapeutic target in type 2 diabetes mellitus (T2DM). Agents that activate this receptor improve glucose tolerance alongside a low risk of hypoglycaemia, and have the potential to modify disease progression. Lixisenatide is a new potent and selective GLP-1 receptor agonist currently in development. The preclinical pharmacological profile of Lixisenatide suggests actions that are highly relevant to the long-term maintenance of glucose homeostasis. Lixisenatide protected Ins-1 cells (a rat-derived beta-cell line) from both lipid- and cytokine-induced apoptosis. More importantly, Lixisenatide also prevented lipotoxicity-induced insulin depletion in human islets and preserved insulin production, storage and pancreatic beta-cell function in vitro. Enhancement of insulin biosynthesis and pancreatic beta-cell volume could also be demonstrated in animal models of type 2 diabetes. The improvement of glucose-stimulated insulin secretion provided by Lixisenatide occurred in a strictly glucose-dependent manner. In animal models of diabetes, Lixisenatide improved basal blood glucose and HbA(1c) with a rapid onset and sustained duration of action, and prevented the deterioration of pancreatic responsiveness and glucose homeostasis. Lixisenatide also delayed gastric emptying and reduced food intake. The efficacy/safety profile of Lixisenatide is currently being studied further in an extensive ongoing Phase III clinical study programme. This article reviews the preclinical pharmacological profile of Lixisenatide.[3]

C215H347N61O65S

4858.49

4855.54

C, 53.15; H, 7.20; N, 17.59; O, 21.40; S, 0.66

320367-13-3

Lixisenatide acetate; 1997361-87-1

90472060

HGEGTFTSDLSKQMEEEAVRLFIEWLKNGGPSSGAPPSKKKKKK-NH2

White to pink solid powder

2.131

2085.46

70

77

170

342

11800

42

NCCCCC(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C1CCCN1C(C1CCCN1C(C(NC(CNC(C(NC(C(NC(C1CCCN1C(CNC(CNC(C(NC(C(NC(C(NC(C(CC1=CNC2=CC=CC=C12)NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(C(NC(CNC(C(NC(CNC(C(CC1=CN=CN1)N)=O)=O)CCC(=O)O)=O)=O)C(O)C)=O)CC1=CC=CC=C1)=O)C(O)C)=O)CO)=O)CC(=O)O)=O)CC(C)C)=O)CO)=O)CCCCN)=O)CCC(=O)N)=O)CCSC)=O)CCC(=O)O)=O)CCC(=O)O)=O)CCC(=O)O)=O)C)=O)C(C)C)=O)CCCNC(=N)N)=O)CC(C)C)=O)CC1=CC=CC=C1)=O)C(CC)C)=O)CCC(=O)O)=O)=O)CC(C)C)=O)CCCCN)=O)CC(=O)N)=O)=O)=O)=O)CO)=O)CO)=O)=O)C)=O)=O)=O)CO)=O)CCCCN)=O)CCCCN)=O)CCCCN)=O)CCCCN)=O)CCCCN)=O)C(=O)N

XVVOERDUTLJJHN-UHFFFAOYSA-N

InChI=1S/C215H347N61O65S/c1-16-115(10)173(210(337)256-141(68-74-170(299)300)194(321)261-148(94-122-98-232-126-50-24-23-49-124(122)126)199(326)258-143(89-111(2)3)196(323)247-134(58-32-40-83-223)189(316)262-149(96-160(226)285)180(307)235-100-161(286)233-104-165(290)274-85-42-60-156(274)207(334)267-154(108-280)206(333)265-151(105-277)181(308)237-101-162(287)239-117(12)213(340)276-87-44-62-158(276)214(341)275-86-43-61-157(275)208(335)268-153(107-279)204(331)249-132(56-30-38-81-221)187(314)246-131(55-29-37-80-220)186(313)245-130(54-28-36-79-219)185(312)244-129(53-27-35-78-218)184(311)243-128(52-26-34-77-217)183(310)242-127(176(227)303)51-25-33-76-216)272-201(328)146(92-120-45-19-17-20-46-120)260-197(324)144(90-112(4)5)257-190(317)135(59-41-84-231-215(228)229)255-209(336)172(114(8)9)271-177(304)116(11)240-182(309)138(65-71-167(293)294)251-192(319)139(66-72-168(295)296)252-193(320)140(67-73-169(297)298)253-195(322)142(75-88-342-15)254-191(318)137(63-69-159(225)284)250-188(315)133(57-31-39-82-222)248-203(330)152(106-278)266-198(325)145(91-113(6)7)259-200(327)150(97-171(301)302)263-205(332)155(109-281)269-212(339)175(119(14)283)273-202(329)147(93-121-47-21-18-22-48-121)264-211(338)174(118(13)282)270-164(289)103-236-179(306)136(64-70-166(291)292)241-163(288)102-234-178(305)125(224)95-123-99-230-110-238-123/h17-24,45-50,98-99,110-119,125,127-158,172-175,232,277-283H,16,25-44,51-97,100-109,216-224H2,1-15H3,(H2,225,284)(H2,226,285)(H2,227,303)(H,230,238)(H,233,286)(H,234,305)(H,235,307)(H,236,306)(H,237,308)(H,239,287)(H,240,309)(H,241,288)(H,242,310)(H,243,311)(H,244,312)(H,245,313)(H,246,314)(H,247,323)(H,248,330)(H,249,331)(H,250,315)(H,251,319)(H,252,320)(H,253,322)(H,254,318)(H,255,336)(H,256,337)(H,257,317)(H,258,326)(H,259,327)(H,260,324)(H,261,321)(H,262,316)(H,263,332)(H,264,338)(H,265,333)(H,266,325)(H,267,334)(H,268,335)(H,269,339)(H,270,289)(H,271,304)(H,272,328)(H,273,329)(H,291,292)(H,293,294)(H,295,296)(H,297,298)(H,299,300)(H,301,302)(H4,228,229,231)

5-[[2-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[6-amino-1-[[5-amino-1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[1-[[6-amino-1-[[4-amino-1-[[2-[[2-[2-[[1-[[1-[[2-[[1-[2-[2-[[1-[[6-amino-1-[[6-amino-1-[[6-amino-1-[[6-amino-1-[[6-amino-1-[(1,6-diamino-1-oxohexan-2-yl)amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidine-1-carbonyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-2-oxoethyl]amino]-2-oxoethyl]amino]-1,4-dioxobutan-2-yl]amino]-1-oxohexan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-1-oxohexan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-carboxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-2-oxoethyl]amino]-4-[[2-[[2-amino-3-(1H-imidazol-4-yl)propanoyl]amino]acetyl]amino]-5-oxopentanoic acid

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

注意： 请将本产品存放在密封且受保护的环境中，避免吸湿/受潮。

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Note: 如何溶解多肽产品？请参考本产品网页右上角“产品说明书”文件，第4页。

---

注意: 如下所列的是一些常用的体内动物实验溶解配方，主要用于溶解难溶或不溶于水的产品（水溶度<1 mg/mL）。 建议您先取少量样品进行尝试，如该配方可行，再根据实验需求增加样品量。

---

注射用配方1: DMSO : Tween 80： Saline = 10 : 5 : 85 (如： 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)
*生理盐水/Saline的制备：将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中，得到澄清溶液。
注射用配方 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)
注射用配方 3: DMSO : Corn oil = 10 : 90 (如： 100 μL DMSO → 900 μL Corn oil)
示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液，加到 900 μL Corn oil/玉米油中, 混合均匀。

View More

注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如：100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)]
*20% SBE-β-CD in Saline的制备（4°C，储存1周）：将2g SBE-β-CD (磺丁基-β-环糊精) 溶解于10mL生理盐水中，得到澄清溶液。
注射用配方 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (如： 500 μL 2-Hydroxypropyl-β-cyclodextrin (羟丙基环胡精)→ 500 μL Saline)
注射用配方 6: DMSO : PEG300 : Castor oil : Saline = 5 : 10 : 20 : 65 (如： 50 μL DMSO → 100 μL PEG300 → 200 μL Castor oil → 650 μL Saline)
注射用配方 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (如： 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline)
注射用配方 8: 溶解于Cremophor/Ethanol (50 : 50), 然后用生理盐水稀释。
注射用配方 9: EtOH : Corn oil = 10 : 90 (如： 100 μL EtOH → 900 μL Corn oil)
注射用配方 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL EtOH → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)

---

口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠)
口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素)
示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中，得到0.5%CMC-Na澄清溶液；然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中，得到悬浮液。

View More

口服配方 3: 溶解于 PEG400 (聚乙二醇400)
口服配方 4: 悬浮于0.2% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 5: 溶解于0.25% Tween 80 and 0.5% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 6: 做成粉末与食物混合

---

注意: 以上为较为常见方法，仅供参考， InvivoChem并未独立验证这些配方的准确性。具体溶剂的选择首先应参照文献已报道溶解方法、配方或剂型，对于某些尚未有文献报道溶解方法的化合物，需通过前期实验来确定（建议先取少量样品进行尝试），包括产品的溶解情况、梯度设置、动物的耐受性等。

---

请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。