First Human Clinical Trials Begin for Cellular Reprogramming Therapy

細胞重編程療法首個真人臨床試驗開始

Jun 9, 2026, 10:00
USScience

Introduction

Life Biosciences has started the first human trial of a cellular reprogramming therapy. This treatment is designed to reverse the decline of cells caused by aging, specifically focusing on damage to the optic nerve.

Life Biosciences 已啟動首個細胞重編程療法的真人試驗。此治療旨在逆轉由衰老引起的細胞衰退，特別專注於視神經的損傷。

Main Body

The trial uses a method called partial epigenetic reprogramming. This technique aims to restore the function of young cells without turning them back into basic stem cells. The process is based on the 'Yamanaka Factors'—four specific proteins—but the current treatment uses only three of them to reduce the risk of causing cancer. The main goal is to regrow neurons in the optic nerve to treat conditions such as glaucoma and NAION, which normally cannot heal in adults.

該試驗採用一種稱為「部分表觀遺傳重編程」的方法。此技術旨在恢復年輕細胞的功能，而不會將其變回基本的幹細胞。該過程基於「山中因子」（Yamanaka Factors）——即四種特定蛋白質——但目前的治療僅使用其中三種，以降低引起癌症的風險。主要目標是在視神經中重新生長神經元，以治療如青光眼和 NAION 等在成年人中通常無法癒合的病症。

There has been a significant increase in financial support for this research, with large investments from pharmaceutical companies like Eli Lilly and Merck, as well as wealthy individuals like Jeff Bezos. While previous studies were only done on mice and primates, this FDA-approved trial now includes about 20 participants in several US cities. To keep patients safe, the therapy includes a chemical 'off-switch' using an antibiotic called doxycycline; if the patient stops taking this medicine, the reprogramming process ends.

這項研究獲得的資金支持顯著增加，包括來自 Eli Lilly 和 Merck 等製藥公司的大額投資，以及像 Jeff Bezos 這樣的富豪支持。雖然之前的研究僅在小鼠和靈長類動物身上進行，但這項經 FDA 批准的試驗現在已包括美國多個城市的約 20 名參與者。為了確保患者安全，該療法包含一個使用名為多西環素（doxycycline）抗生素的化學「關閉開關」；如果患者停止服用此藥，重編程過程將隨之停止。

Although this technology could eventually be used for the liver or muscles, the company chose the eye for the first trial. Experts emphasize that the eye is a semi-protected environment, which reduces the chance of dangerous side effects throughout the body. However, some scientists remain skeptical. They argue that it is difficult to ensure absolute safety because some reprogramming factors are linked to the growth of tumors.

儘管這項技術最終可用於肝臟或肌肉，但公司選擇眼睛作為首次試驗對象。專家強調，眼睛是一個半受保護的環境，能降低全身出現危險副作用的機會。然而，部分科學家仍持懷疑態度。他們認為很難確保絕對安全，因為某些重編程因子與腫瘤生長相關。

Conclusion

The trial is currently in its first phase, and researchers will observe the participants for six months to evaluate the safety and effectiveness of the ER-100 injection.

該試驗目前處於第一階段，研究人員將觀察參與者六個月，以評估 ER-100 注射的安全性和有效性。

Vocabulary Learning

The 'B2 Leap': Moving from Basic Descriptions to Complex Logic

An A2 student usually says: "The medicine is safe because it has a switch."

A B2 student says: "To keep patients safe, the therapy includes a chemical off-switch."

The Secret: The 'Infinitive of Purpose' at the Start of a Sentence

In the article, we see a powerful structure: "To [do something], [subject] [verb]..."

Instead of explaining why something happens at the end of the sentence (which is common at A2), B2 speakers often put the goal first. This creates a more professional, academic flow.

How to build it: To + Verb (Base Form) →\rightarrow , →\rightarrow Main Action

Examples from the text & adaptations:

  • "To keep patients safe, the therapy includes a chemical 'off-switch'." (Goal: Safety →\rightarrow Action: Added a switch)
  • "To reduce the risk of cancer, the treatment uses only three proteins." (Goal: No cancer →\rightarrow Action: Limited the proteins)
  • "To evaluate the safety, researchers will observe participants for six months." (Goal: Evaluation →\rightarrow Action: Observation)

Why this upgrades your English:

  1. Emphasis: You tell the listener the reason immediately, which is how scientists and executives speak.
  2. Variety: You stop starting every sentence with "Because..." or "I want to..."
  3. Control: It allows you to connect two different ideas (a goal and a method) into one sophisticated sentence.

Quick Contrast Map

A2 Style (Simple)B2 Style (Advanced Bridge)
I study hard because I want to pass.To pass the exam, I study hard.
He went to the eye clinic to get help.To get help, he went to the eye clinic.
The company used the eye to reduce risk.To reduce risk, the company used the eye.

Vocabulary Learning

reverse (v.)
To change something back to its previous state or in the opposite direction.
Example:The new medicine aims to reverse the effects of the disease.
restore (v.)
To bring something back to its original condition or function.
Example:The specialists worked hard to restore the old painting to its former glory.
significant (adj.)
Large or important enough to have a noticeable effect.
Example:There has been a significant increase in the number of people working from home.
emphasize (v.)
To give special importance or attention to something in speaking or writing.
Example:The teacher wanted to emphasize the importance of arriving on time for the exam.
skeptical (adj.)
Doubting that something is true or useful.
Example:Many experts remain skeptical about the claims that the new product can cure all ailments.
evaluate (v.)
To judge or calculate the quality, importance, amount, or value of something.
Example:The company will evaluate the performance of its employees at the end of the year.
Practice B2 words in a crossword→