JP2008534957A - 血小板アナログの製造 - Google Patents
血小板アナログの製造 Download PDFInfo
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Abstract
Description
電気インピーダンス計測について最適化された従来の調製血小板アナログの処理が、光学及び電気インピーダンス粒子計測器の両方について最適化されたサイズ、分布、及び光学屈折度を達成するために本発明の方法によってさらにどのように処理できるかを本実施例は示す。一連の血小板アナログ、つまり、すでに焼き鈍しされ、つまり浸透圧により細胞内液体を引き抜き、そして固定剤で固定することによってサイズの低減を達成するために従来技術の方法により処理されたヤギ赤血球のサンプル、を懸濁培地中に懸濁し、そして部分に分ける。各部分を処理のために別々の容器に配置した。処理済みの2個のロットの赤血球を使用した。そのうち1つは、7.7fLの平均血小板体積を有し、そしてもう一方は11.5fLの平均血小板体積を有した。各サイズ範囲のうちで、異なるサンプルを、細胞を入れる懸濁培地の点及びそれに続く処理ステップであって、熱の適用及び固定剤での処理を含む処理ステップの点で別々に処理した。
中間サイズ開始粒子を伴う大バッチ
以下の例外を伴って実施例1の方法を行った。開始物質として使用された焼き鈍し済みのヤギ赤血球細胞のMPVは、10.4fLであった。50mlの焼き鈍し済みの赤血球濃縮物を等張溶液で最終体積1lになるように希釈した。次にサンプルを1Lの遠心容器にいれ、そして水浴で56℃に熱した。24時間加熱後、十分なグルタルアルデヒド試薬を含む1Lの容器に注ぎいれ、最終溶液は体積で10%のグルタルアルデヒドを含んだ。グルタルアルデヒド中での固定を24時間続け、その後サンプルを4時間、有機物緩衝生理食塩水(organic buffered saline solution)中で洗浄した。同じ様式で調製した平行サンプルを次に11日間室温で赤血球細胞を含む培地中で処理した。1のセットが加熱処理又はグルタルアルデヒド固定のいずれも受けず、そして別のセットが加熱処理のみを受けるという点を除いて、さらなるサンプルの平行セットを同じ様式で調製した。
前処理の効果
本実施例は、本発明の熱処理及び固定ステップの前に焼き鈍されたヤギ赤血球細胞の前処理の効果を示す。前処理は、様々な希釈液中に2〜4時間室温で又は37℃に温和に加熱して設定することからなる。
Claims (30)
- 自動化血液細胞分析器においてリファレンス対照として使用するためのヒト血小板アナログの製造方法であって、当該方法が以下の:
(a) 細胞内液体を引き抜くことによりサイズを低減され、そして固定剤で固定されたヒト以外の脊椎動物の赤血球細胞を、変性効果を達成するために十分な程度に当該細胞を固定剤の非存在下で熱することによって処理し、
(b) 上記加熱の後に上記細胞を固定剤と反応させる
を含む、前記方法。 - 前記赤血球細胞がヤギ赤血球細胞である、請求項1に記載の方法。
- ステップ(a)の前記加熱が約50℃〜約75℃で行われ、そして当該時間は約4時間〜約24時間である、請求項1に記載の方法。
- ステップ(a)の前記加熱が約50℃〜約60℃で行われ、そして当該時間は約4時間〜約48時間である、請求項1に記載の方法。
- ステップ(b)が、30℃未満の温度で少なくとも約2時間行われる、請求項1に記載の方法。
- ステップ(b)が、室温で8〜48時間行われる、請求項1に記載の方法。
- ステップ(b)が、室温で16〜24時間行われる、請求項1に記載の方法。
- ステップ(a)の前記固定剤が、架橋固定剤である、請求項1に記載の方法。
- ステップ(a)の前記固定剤が、グルタルアルデヒド、ホルムアルデヒド、四酸化オスミウム、アクロレイン、及びタンニン酸からなる群から選ばれるメンバーである、請求項1に記載の方法。
- ステップ(a)の前記固定剤が、グルタルアルデヒド及びホルムアルデヒドからなる群から選ばれるメンバーである、請求項1に記載の方法。
- ステップ(a)の前記固定剤がグルタルアルデヒドである、請求項1に記載の方法。
- 加熱前のステップ(a)の前記赤血球細胞が、約7〜約15フェムトリットルの平均血小板体積を有する、請求項1に記載の方法。
- 加熱前のステップ(a)の前記赤血球細胞が、約9〜約15フェムトリットルの平均血小板体積を有する、請求項1に記載の方法。
- 加熱前のステップ(a)の前記赤血球細胞が、約10〜約13フェムトリットルの平均血小板体積を有する、請求項1に記載の方法。
- ステップ(a)の前記赤血球細胞が、単一のバッチであり、その全ての部分がサイズの点で低減され、そして当該加熱前の共通条件下で固定される、請求項1に記載の方法。
- 自動化血液細胞分析器用のリファレンス対照においてヒト血小板のアナログとして使用するための改変血液細胞であって、以下の:
(a) 細胞内液体の引き抜きによりサイズを低減され、そして固定剤で固定されたヒト以外の脊椎動物の赤血球細胞を、変性効果を達成するために十分な時間のあいだ固定剤の非存在下で当該細胞を変性温度に加熱することによって処理し、
(b) 上記加熱の後に上記細胞を固定剤と反応させる
を含む方法により製造される、前記細胞。 - 前記赤血球細胞がヤギ赤血球細胞である、請求項16に記載の改変赤血球細胞。
- 前記変性温度が約50℃〜約75℃であり、そして前記時間が約4時間〜約24時間である、請求項16に記載の改変血液細胞。
- 前記変性温度が約50℃〜約60℃であり、そして前記時間が約4時間〜約24時間である、請求項16に記載の改変血液細胞。
- 前記ステップ(b)が、30℃未満の温度で少なくとも約2時間行われる、請求項16に記載の改変血液細胞。
- 前記ステップ(b)が、室温で8〜48時間行われる、請求項16に記載の改変血液細胞。
- 前記ステップ(b)が、室温で16〜24時間行われる、請求項16に記載の改変血液細胞。
- ステップ(a)の前記固定剤が、架橋固定剤である、請求項16に記載の改変血液細胞。
- ステップ(a)の前記固定剤が、グルタルアルデヒド、ホルムアルデヒド、四酸化オスミウム、及びタンニン酸からなる群から選ばれるメンバーである、請求項16に記載の改変血液細胞。
- ステップ(a)の前記固定剤が、グルタルアルデヒド及びホルムアルデヒドからなる群から選ばれるメンバーである、請求項16に記載の改変血液細胞。
- ステップ(a)の前記固定剤がグルタルアルデヒドである、請求項16に記載の改変血液細胞。
- 加熱前のステップ(a)の前記赤血球細胞が、約7〜約15フェムトリットルの平均血小板体積を有する、請求項16に記載の改変血液細胞。
- 加熱前のステップ(a)の前記赤血球細胞が、約9〜約15フェムトリットルの平均血小板体積を有する、請求項16に記載の改変血液細胞。
- 加熱前のステップ(a)の前記赤血球細胞が、約10〜約13フェムトリットルの平均血小板体積を有する、請求項16に記載の改変血液細胞。
- ステップ(a)の前記赤血球細胞が単一のバッチであり、その全ての部分が、前記加熱前にサイズの点で低減され、そして共通な条件下で固定された、請求項16に記載の改変血液細胞。
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US11/099,361 US7531357B2 (en) | 2005-04-04 | 2005-04-04 | Preparation of platelet analogs |
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PCT/US2006/005551 WO2006107421A2 (en) | 2005-04-04 | 2006-02-15 | Preparation of platelet analogs |
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JP2012515333A (ja) * | 2009-01-13 | 2012-07-05 | バイオ−ラッド ラボラトリーズ インコーポレーティッド | 正常新鮮血小板の模擬物 |
JPWO2016147747A1 (ja) * | 2015-03-13 | 2017-12-28 | ソニー株式会社 | 電気的特性測定用試料及び電気的特性測定方法並びに電気的特性測定装置 |
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KR102656644B1 (ko) | 2015-02-09 | 2024-04-09 | 슬링샷 바이오사이언시즈 인코포레이티드 | 튜닝가능한 광 특성을 갖는 하이드로겔 입자 및 이를 사용하기 위한 방법 |
CN112986589B (zh) * | 2017-01-05 | 2023-01-24 | 深圳迈瑞生物医疗电子股份有限公司 | 网织红细胞模拟粒子、血小板模拟粒子制备方法及质控物 |
JP2023511132A (ja) | 2020-01-24 | 2023-03-16 | スリングショット バイオサイエンシーズ, インコーポレイテッド | 細胞様較正粒子のための組成物および方法 |
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AU2006233071B2 (en) | 2010-12-02 |
WO2006107421A2 (en) | 2006-10-12 |
CA2602232A1 (en) | 2006-10-12 |
WO2006107421A3 (en) | 2008-01-10 |
JP4891312B2 (ja) | 2012-03-07 |
EP1866640A2 (en) | 2007-12-19 |
EP1866640A4 (en) | 2008-12-24 |
DE06720834T1 (de) | 2008-05-21 |
AU2006233071A1 (en) | 2006-10-12 |
US7531357B2 (en) | 2009-05-12 |
US20060223187A1 (en) | 2006-10-05 |
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