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Klotho Minicircle Gene Therapy

Abstract

Klotho is a longevity-associated protein primarily produced in the kidneys and known to regulate aging-related pathways including phosphate metabolism, oxidative stress resistance, and neuronal function. Circulating Klotho levels decline significantly with age and correlate with cognitive decline, kidney dysfunction, and increased mortality.

We report preliminary observations from a minicircle-based gene therapy approach designed to transiently increase systemic Klotho levels through adipocyte transfection.

Initial clinical observations suggest:

→ Rapid elevation of circulating Klotho levels

→ Improvements in mild age-related cognitive complaints

→ Improvements in renal function markers in patients with impaired kidney function

→ Sustained biological activity for approximately 8–12 months

Further longitudinal data collection is ongoing.

Background

The Klotho protein has emerged as one of the most significant molecular regulators of aging. Discovered in 1997, Klotho-deficient mice exhibit accelerated aging phenotypes including cognitive decline, vascular calcification, osteoporosis, and shortened lifespan. Conversely, Klotho overexpression increases lifespan by up to 30% in animal models.

Klotho also acts as a regulator of phosphate metabolism, an inhibitor of insulin/IGF-1 signaling, a neuroprotective factor, and a renal protective protein. Circulating Klotho levels decline significantly after age 40, making it an attractive therapeutic target for aging-associated diseases.

Gene Construct

Construct: miniVec-CMV-hKl[NM-004795-4]-SMAR-SV40pA

The minicircle vector encodes the human secreted Klotho protein under control of a CMV promoter, enabling strong transient expression. Minicircle vectors were selected due to:

  • Absence of bacterial backbone sequences
  • Reduced epigenetic silencing
  • Improved safety compared to viral vectors
  • Prolonged expression relative to conventional plasmids

Administration Protocol

Dose: 100 µg minicircle DNA

Delivery method: Lipofectamine nanoparticle encapsulation

Injection medium: 1 mL Opti-MEM

Injection site: Adipose tissue

Adipocytes serve as temporary biological factories producing circulating Klotho protein.

Injection site reaction

Typical response: mild inflammation, localized induration, and resolution within 4–5 days.

Onset of physiological effects

Patients typically report subjective effects within 7–10 days, consistent with the expected timeframe for transgene expression.

Plasma Klotho Measurement

Plasma Klotho concentrations are measured using ELISA assays. Commercial kits were sourced from Japanese manufacturers.

Observed baseline levels

Age group Klotho plasma level
20s ~1500 ng/mL
40s ~450 ng/mL
>50 120–250 ng/mL

These values align with published literature showing progressive decline with age.

Post-therapy response

Following minicircle therapy, plasma Klotho increases sharply and elevated levels persist for several months. Estimated functional half-life of expression: ~8 months.

Cognitive Function Observations

No effect was observed in young individuals without cognitive complaints, or in patients with advanced dementia or late-stage Alzheimer’s disease. Improvements were observed in patients over 55 years old with mild cognitive complaints. Reported benefits include improved memory recall, improved focus, improved mental clarity, and faster cognitive recovery after mental effort.

“Getting my 30 yo brain back.”

— How many patients describe the effect

Measurement challenge

Standard cognitive screening tools such as the Montreal Cognitive Assessment (MoCA) are insufficiently sensitive in high-functioning individuals.

As noted in recent research on brain aging: “Preserved brainspan is characterized not by uniformly high performance, but by stability, flexibility, and rapid recovery after perturbation.”

Future Cognitive Monitoring

We plan to incorporate:

  • QEEG (quantitative EEG), available mid-April
  • Longitudinal cognitive monitoring, hopefully integrating CFQ and BHA type of questionnaires
  • Sleep and autonomic regulation measurements

Kidney Function Observations

Klotho is primarily produced in the kidneys, and declining renal function is strongly correlated with reduced circulating Klotho levels. Increasing Klotho expression through gene therapy may therefore improve renal resilience, reduce inflammatory signaling, and improve filtration markers.

Clinical case example

A patient suffering from severe renal damage following pelvic radiation therapy was monitored over a three-month period. Clinical progression included:

  1. Initial impaired renal function
  2. Partial improvement during stem cell therapy
  3. Severe decline following UTI and kidney infection
  4. Rapid recovery following Klotho minicircle therapy

Emergency physicians monitoring the patient were unable to explain the speed of the recovery.

Biomarker Trends

Below are examples of renal and immune system biomarkers recorded before and after Klotho therapy for several of our clients. The renal improvements remained stable one year post-therapy. The immune system improvements appear to gradually return toward baseline approximately one year post-therapy, consistent with declining Klotho levels.

Case 1 — Post-radiation renal damage

Marker Mar 4 Mar 7 Mar 22
after stem cell tx		 May 6
UTI / infection		 May 10 May 13
Klotho		 May 15 Jun 3
Hb 9.30 9.40 9.50 9.30 8.5 8 7.50 11.3
Neutrophils / Lymphocytes 76/16 74/18 73/18 83/1 85/8 87/6 69/22 66/24
Creatinine 3.32 2.76 2.57 5.34 4.81 — 3.38 1.87
eGFR 16 20 22 9 10 — 16 32
Ferritin 1198 824 772 1028 1510 1852 1125 419

Case 2 — Doug

Marker Nov 11, 2024 Mar 8, 2025
Klotho: Jan 2025		 Nov 10, 2025 Feb 2026
Hb 14.1 14.1 14.7 16.0
N/L 61/26 54/35 56/35 60/27
AFP 4.05 1.67 2.24 0.50
PSA 5.81 4.46 2.69 3.32
Creatinine 1.30 1.30 1.20 1.10
eGFR 59 59 65 72

Case 3 — Scott

Marker Jan 6, 2025 Jun 16, 2025
Klotho: Aug 30, 2025		 Jan 5, 2026
Hb 15 15.7 16.5
N/L 65/23 65/20 67/19
PSA 8.09 6.03 4.9
Creatinine 1.10 1.25 0.93
eGFR 72 62 88

Case 4 — Anan

Marker Dec 9, 2024
Klotho: Dec 12, 2024		 May 22, 2025
Hb 15.3 14
N/L 62/28 63/27
PSA 11.57 11.13
Creatinine 1.21 1.09
eGFR 63 71

Case 5 — M

Marker Jun 24, 2025
Klotho: Oct 22, 2025		 Jan 29, 2026
Hb 14 16
N/L 70/19 64/24
PSA 1.14 1.74
Creatinine 1.1 0.76
eGFR 67 90

Limitations

Many life parameters affect these values, and we can only report a trend at this stage given our current limitations:

  • Small sample size (not all of our clients are available or willing to get tested after treatment; they are happy with the results and come back when they feel it is time to get a booster)
  • Observational design
  • Lack of randomized control group
  • Limited longitudinal biomarker tracking

We are currently expanding data collection to generate longitudinal biomarker datasets, cognitive performance monitoring, renal function charts, and Klotho pharmacokinetic curves. Future reports will include expanded statistical analysis and graphical data representation.

Note: All participants provided informed consent. The procedure was performed in a clinical setting under physician supervision. Data are currently being collected for observational analysis.

© 2026 BlastLongevity.com · Science-backed longevity content · Not medical advice · blastlongevity.com



 

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