寶子們！科研大揭秘來啦！上海交通大學醫學院附屬瑞金醫院的研究發現，維生素 C 可不只是普通的營養素，它能直接修飾蛋白質賴氨酸殘基，特別是讓信號轉導和轉錄激活因子 1（STAT1） 的賴氨酸 298 位點發生 vitcylation，增強干擾素信號轉導，從而激活咱們身體的抗腫瘤免疫反應，這對提升免疫力簡直太關鍵啦！

維生素C

維生素C（也稱為抗壞血酸）是一種水溶性維生素，具有抗氧化特性，在人體多種生理過程中發揮關鍵作用，如參與膠原蛋白合成、促進鐵吸收以及增強免疫功能等。

其實，維生素家族里的其他成員也都各有神通，在守護我們健康這件事上，一個都沒落下。基于這一前沿成果，北京索萊寶攜旗下豐富的維生素家族產品，邀您一同擁抱健康新高度。

實驗案例一：

I  F 33.8990

文獻

Sun L, Zhang Y, Chen G, Ji Y, Ma Q, Qiao X, Wu S, Zhou L, Bu J, Zhu X, Zhang X, Jiang X, Liu C, Li X, Liu Y, Yang Y, Liu C.

Targeting SOST using a small-molecule compound retards breast cancer bone metastasis.

Mol Cancer. 2022 Dec 29;21(1):228.

DOI:10.1186/s12943-022-01697-4.

PMID:36581888.

PMCID: PMC9798707.

方法 誘導小鼠MC3T3-E1 cells成骨分化；50 μg/mL L-ascorbic acid

Sun L, et al. doi: 10.1186/s12943-022-01697-4.

實驗案例二：

I  F 36.3009

文獻

Ren J, Zhang Z, Geng S, Cheng Y, Han H, Fan Z, Dai W, Zhang H, Wang X, Zhang Q, He B.

Molecular Mechanisms of Intracellular Delivery of Nanoparticles Monitored by an Enzyme-Induced Proximity Labeling.

Nanomicro Lett. 2024 Feb 1;16(1):103.

DOI:10.1007/s40820-023-01313-0.

PMID:38300384.

PMCID: PMC10834923.

方法

Mouse macrophage cell line J774A.1 ：

制備了與辣根過氧化物酶（HRP）偶聯的聚乳酸 - 羥基乙酸共聚物納米顆粒作為模型（HRP (+)-PNPs），以評估納米藥物在巨噬細胞中的遞送分子機制。
The reaction was quenched after 1 min by the addition of a 100 X "quencher solution," comprising 1 M sodium azide, 1 M sodium ascorbate, and 500 mM Trolox in PBS.

Ren J, et al. doi: 10.1007/s40820-023-01313-0.

實驗案例三：

I  F 25.9002

文獻

Wang P, Zhang L, Chen S, Li R, Liu P, Li X, Luo H, Huo Y, Zhang Z, Cai Y, Liu X, Huang J, Zhou G, Sun Z, Ding S, Shi J, Zhou Z, Yuan R, Liu L, Wu S, Wang G.

ANT2 functions as a translocon for mitochondrial cross-membrane translocation of RNAs.

Cell Res. 2024 Jul;34(7):504-521.

DOI:10.1038/s41422-024-00978-5.

Epub 2024 May 29.

PMID:38811766.

PMCID:PMC11217343.

方法

合成蛋白質的疊氮高丙氨酸（AHA）標記：

5mM sodium ascorbate (Solarbio) for 2 h

Experimental procedures for AHA labeling of synthesized proteins were adapted from a published protocol. The sample was incubated at 95 °C for 10 min. Click reaction was then performed after the samples were cooled to 37 °C in a reaction system containing 50 μMAcety-lene-PEG4-Biotin, 0.1 mM GuSO4,0.5 mM THPTA , and

5mM sodium ascorbate (Solarbio) for 2 h. The reaction was terminated with 1 mM EDTA. The labeled proteins were resolved by SDS–PAGE and detected with Biotin detection reagents.

Wang P, et al. doi: 10.1038/s41422-024-00978-5.

Wang P, et al. doi: 10.1038/s41422-024-00978-5.

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