Kaneka Corporation

Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Masaru Nakatani

Akira Kobayashi

Shigeo Furuyoshi

Satoshi Takata

Masaki Ichimura

Toshiki Nanko

Nobuhiko Sato

Akira Nishimura

Shinya Yoshida

Takehiro Nishimoto

Hiroshi Tone

Koji Fujita

Ikuhiro Suzuki

A method includes detecting a nucleotide sequence in genomic DNA obtained from a sample; and evaluating a content of mesenchymal stem cells in the sample. The nucleotide sequence comprises at least one CpG site selected from the group consisting of: a CpG site consisting of C at position 157 and G at position 158 of SEQ ID NO: 1; and a CpG site complementary to the CpG site of SEQ ID NO: 1 in a nucleotide sequence complementary to the nucleotide sequence of SEQ ID NO: 1. The sample is an adipose tissue or a cell-containing fraction obtained from an adipose tissue.

Method for evaluating content of mesenchymal stem cells in cell-containing sample

The present invention relates to a separation system and a separation material for easily and rapidly separating a red blood cell-rich fraction, a white blood cell-rich fraction, and/or a platelet-rich fraction from a biological fluid containing these blood cell components without the necessity of performing centrifugation. The separation of a red blood cell-rich fraction, a white blood cell-rich fraction, and/or a platelet-rich fraction from a biological fluid can be accomplished by capturing white blood cells and platelets on a blood cell separation material by contacting the biological fluid with the blood cell separation material, thereby providing a red blood cell-rich fraction; and recovering a white blood cell-rich fraction by separating white blood cells captured from the resulting blood cell separation material using a separation solution.

Blood component separation system and separation material

The present invention aims to provide a leukocyte depletion filter that has both higher leukocyte removal performance and higher blood permeability than conventional filters. The leukocyte depletion filter according to the present invention includes a filter material having an average fiber diameter of 0.30 to 1.60 &#x3bc;m and a coefficient of variation of fiber diameter of at least 0.40 but not more than 1.20.

Leucocyte removal filter

It is an object to achieve a closed system that has a simple structure without resorting to large scale equipment and that sequentially carries out all of the step of separating useful cells, the step of culturing the useful cells separated in the separation step, and the step of washing and concentrating the cells cultured in the culturing step and to enable the preparation of useful cells having high safety and quality, while improving operability. A disposable set for cell culture includes a cell culture container (CC) having a liquid inlet (Lin) and a liquid outlet (Lout), a cell separation kit (A) that is for separating cells used for cell culture and is connected to the liquid inlet (Lin), and a cell collection kit (B) that is for washing and concentrating cultured cells in the cell culture container (CC) and is connected to the liquid outlet (Lout), and a cell culture device uses the disposable set for cell culture and includes flow path on-off valves and pumps provided at appropriate positions of pipelines of the disposable set and a controller controlling them.

Disposable set for cell culture, cell culture device and cell preparation method

Bag for collecting cells

Vessel for culture

The present invention has its object to provide a direct hemoperfusion adsorber packed with an adsorbent made by using a water-insoluble carrier having a relatively readily available particle size distribution, with water-insoluble microparticles having been removed therefrom, without needing any special granulation apparatus or coating apparatus, and method of obtaining a direct hemoperfusion adsorbent having water-insoluble microparticles removed therefrom. Now, a direct hemoperfusion adsorber has been obtained that is packed with an adsorbent having a number average particle diameter of not smaller than 300 &#x3bc;m but not larger than 600 &#x3bc;m, with the coefficient of variance in particle diameter distribution being not lower than 10% but not higher than 20%, and having water-insoluble microparticles removed therefrom to a safe level, without the loss of the adsorbent, by using a water-insoluble microparticle-removing-mesh such that the ratio of the mesh opening size for removing water-insoluble microparticles to the mesh opening size of the adsorber is not lower than 1.3 but not higher than 1.5.

Direct hemoperfusion adsorber packed with adsorbent having water insoluble microparticle removed therefrom, and method of obtaining direct hemoperfusion adsorbent having water insoluble microparticle removed therefrom

A safe and practically useful body fluid processor whereby blood taken out from a patient can be directly processed, characterized by having a favorable passage of the blood cell and showing an extremely low risk of the generation and leakage of microparticles. Namely, a body fluid processor enabling direct hemoperfusion wherein the ratio of sedimented particles to the volume of the space in which the particles for processing body fluid are to be packed is 100% or less and the space in which the particles for processing body fluid are to be packed in the body fluid processor is filled with the particles for processing body fluid and a filling liquid at a ratio of 95% or more but not more than 100%.

Body fluid processor enabling direct hemoperfusion

A device for body fluid purification, comprising a container having an inlet and an outlet for a fluid and a means for preventing an adsorbent from flowing out of the container and an adsorbent charged in the container, the adsorbent comprising a spherical hydrogel, the spherical hydrogel having an average particle size in a range of from about 460 to 600 &#x3bc;m and having a substantially uniform particle size and comprising an epoxidated cellulose having hexadecylamine immobilized thereon in an amount of 100 to 300 &#x3bc;mol per gram of dry weight of said epoxidated cellulose, and water, wherein the weight ratio of said epoxidated cellulose having hexadecylamine immobilized thereon to the water is 2:8.

Adsorbent and method for adsorbing a chemokine in body fluid

Device for body fluid purification and system for body fluid purification

An adsorbent for removing a chemokine except interleukin-8 in body fluid, which comprises a solid material having an anionic functional group, a method for efficiently removing a chemokine except interleukin-8 in body fluid, which comprises by bringing the above adsorbent into contact with body fluid containing the chemokine and an adsorber for removing a chemokine except for interleukin-8 using the above adsorbent.

Method for removing a chemokine

An adsorbent for removing at least one interleukin selected from the group consisting of inerleukin-1, interleukin-2, interleukin-6 and interluekin-8 and/or TNF, which comprises a porous water-insolube carrier and a compound satisfying the value of log P of at least 2.50, in which P is a distribution coefficient in an octanol-water system and being immobilized onto the carrier, a process for removing the above IL(s) and/or TNF by the adsorbent and an adsorber comprising the adsorbent. According to the present invention, IL(s) and TNF in body fluid can be efficiently absorbed using the above-mentioned adsorbent.

Growing community of inventors

Settsu, Japan

Masaru Nakatani