WO2001060994A1 - Method and apparatus for destroying dividing cells - Google Patents

Method and apparatus for destroying dividing cells Download PDF

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Publication number
WO2001060994A1
WO2001060994A1 PCT/IB2001/000202 IB0100202W WO0160994A1 WO 2001060994 A1 WO2001060994 A1 WO 2001060994A1 IB 0100202 W IB0100202 W IB 0100202W WO 0160994 A1 WO0160994 A1 WO 0160994A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric field
dividing cells
living tissue
cleavage
cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2001/000202
Other languages
English (en)
French (fr)
Inventor
Yoram Palti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to AU33998/01A priority Critical patent/AU3399801A/en
Priority to US10/204,334 priority patent/US7333852B2/en
Priority to JP2001560365A priority patent/JP5280600B2/ja
Priority to EP01906036A priority patent/EP1259596A4/en
Priority to US12/199,498 priority patent/USRE43618E1/en
Priority to CA2400526A priority patent/CA2400526C/en
Application filed by Individual filed Critical Individual
Publication of WO2001060994A1 publication Critical patent/WO2001060994A1/en
Anticipated expiration legal-status Critical
Priority to US11/111,439 priority patent/US7565205B2/en
Priority to US11/111,236 priority patent/US7805201B2/en
Priority to US11/111,393 priority patent/US7599745B2/en
Priority to US11/318,702 priority patent/US7565206B2/en
Priority to US11/422,641 priority patent/US7599746B2/en
Priority to US12/146,918 priority patent/US8175698B2/en
Priority to US12/190,886 priority patent/US7890183B2/en
Priority to US12/958,623 priority patent/US8447395B2/en
Priority to US13/428,887 priority patent/US8447396B2/en
Priority to US13/782,418 priority patent/US9039674B2/en
Priority to US13/782,579 priority patent/US9056203B2/en
Priority to US14/731,903 priority patent/US9440068B2/en
Priority to US15/231,734 priority patent/US9750934B2/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/326—Applying electric currents by contact electrodes alternating or intermittent currents for promoting growth of cells, e.g. bone cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/20—Applying electric currents by contact electrodes continuous direct currents
    • A61N1/205—Applying electric currents by contact electrodes continuous direct currents for promoting a biological process
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00613—Irreversible electroporation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/147—Electrodes transferring energy by capacitive coupling, i.e. with a dielectricum between electrode and target tissue

Definitions

  • the present invention relates to selective destruction of Uy dividing cells and,
  • cancers are characterized by an ability to transmit cancerous "seeds", including single cells or small cell clusters (metastasises), to new locations where the metastatic cancer cells grow into additional tumors.
  • the distinguishably frequent cell division of cancer cells is the basis for the effectiveness of existing cancer treatments, e.g., irradiation therapy and the use of various chemo-therapeutic agents. Such treatments are based on the fact that cells undergoing division are more sensitive to radiation and chemo-therapeutic agents than non-dividing dells. Because tumor cells divide much more frequently than normal cells, it is possible, to a certain extent, to selectively damage or destroy tumor cells by cells, it is possible, to a certain extent, to selectively damage or destroy tumor cells by
  • tissue renders treatments very traumatic to the patients and, often, patients are unable to
  • destroying tumor cells may be used in addition to or instead of conventional treatments.
  • the target tissue results in the destruction of both tumor cells and normal cells.
  • an electric field is applied for targeting selected cells to cause breakdown of the dielectric
  • the cells are selected on the basis of intrinsic or induced
  • the method of the '066 patent is therefore based on the assumption that the
  • electroporation threshold of tumor cells is sufficiently distinguishable from that of normal
  • microorganisms such as bacteria, mycoplasma, yeast, protozoa, and other single-celled cells
  • centrioles each cell contains 2
  • each chromosome is a chromosome
  • Microtubular spindles radiate from regions adjacent to
  • centrioles which are closer to their poles.
  • the centrioles have
  • chromosomes move toward the equator of the cell and align in the equatorial plane.
  • the cell begins to elongate along the axis of the pole; the pole-to-pole spindles also elongate.
  • Late anaphase occurs when the daughter chromosomes (as they are not called) each reach
  • cytokinesis begins as the cleavage furrow
  • late anaphase is the point at
  • the cell returns to interphase.
  • chromosomes to opposite poles of the cell along spindle fibers, followed by formation of a
  • Bacteria also divide by chromosome replication, followed by cell separation.
  • the present invention provides a new method and apparatus for selectively
  • present invention eliminate or control the growth of such living tissue or organisms.
  • a major use of the method and apparatus of the present invention is in treatment of
  • tumors by selective destruction of tumor cells with substantially no affect on normal tissue
  • cell may also refer to single-celled organisms (eubacteria, bacteria,
  • yeast protozoa
  • multi-celled organisms fungi, algae, mold
  • plants as or parts thereof
  • the method of the present invention enables
  • the method of the present invention causes minimal damage, if any, to normal tissue and, thus, reduces or
  • dividing state may have different shapes, e.g., spherical, ellipsoidal, cylindrical, "pancake"
  • cleavage furrow in late anaphase and telophase. This cleavage furrow is a slow
  • a cell or a group of cells When a cell or a group of cells are under natural conditions or environment, i.e., part of a living tissue, they are disposed surrounded by a conductive environment
  • tissue components may be frequency dependent
  • the tissue properties may be
  • Such cells include first and second sub-cells, namely, an "original” cell and a newly formed cell, that are connected by a cytoplasm "bridge” or "neck".
  • the currents include first and second sub-cells, namely, an "original” cell and a newly formed cell, that are connected by a cytoplasm "bridge” or "neck".
  • the field polarity is
  • an alternating electric field may be
  • pulses are applied to the organelles numerous times per second, enhancing the
  • organelles themselves and may collapse or break the organelles.
  • the electric potential applied to the tumor tissue is preferably rotated
  • Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any suitable application of electrodes. Shielding can be any combination of electrodes.
  • a conducting material such as copper, aluminum, steel, etc.
  • the field may be selectively targeted to specific regions, e.g.,
  • the field may be controlled by active means, for example, by applying
  • electric fields may be generated in the body by
  • the electrodes may be any suitable electrode that can be used to control the skin. If fields not associated with conductive currents are desired, the electrodes may be used to control the skin. If fields not associated with conductive currents are desired, the electrodes may be used to control the skin. If fields not associated with conductive currents are desired, the electrodes may be used to control the skin. If fields not associated with conductive currents are desired, the electrodes may be used to control the skin. If fields not associated with conductive currents are desired.
  • Localized internal fields may be produced by introducing
  • Electrodes into the living tissue e.g., by insertion through body cavities or by penetrating
  • Such organisms divide by the formation of a groove or cleft as described above.
  • a groove or cleft as described above.
  • Fig. 1 A- IE are simplified, schematic, cross-sectional, illustrations of various stages
  • FIGs. 2A and 2B are schematic illustrations of a non-dividing cell being subjected
  • Figs. 3 A, 3B and 3C are schematic illustrations of a dividing cell being subjected to
  • Fig 4 is a series of sequential microphotographic frames taken over a set period of
  • Fig. 5 is a series of sequential microphotographic frames illustrating a dividing cell
  • FIG. 1 A shows a cell 10 at its normal geometry, which may be
  • Figs. IB- ID show cell 10 during different conditions
  • the division process of cell 10 is characterized by a
  • the division process is characterized by a transient period during
  • Cell 10 includes intracellular organelles, e.g., a nucleus 30. Alternating
  • Electrodes 28 and 32 that may be attached externally to
  • a patient at a predetermined region, e.g., in the vicinity of a tumor being treated.
  • cell 10 is under natural conditions, i.e., part of a living tissue, it is disposed in a conductive
  • volume conductor consisting mostly of
  • Fig. 2A At higher frequencies, e.g., at
  • the membrane capacitance may short the
  • the electric field lines (or induced
  • the cu ⁇ ent flow pattern across cell 10 is generally uniform because, under the
  • the field induced inside the cell is substantially homogenous.
  • negative electrode 32 also refe ⁇ ed to herein as "sink”
  • electrodes 28 and 32 are electrically insulated.
  • insulated electrodes applying a DC or
  • insulated electrodes in contrast, always generate some form of cu ⁇ ent flow, specifically,
  • nuclei 24 and 26 of sub-cells 14 and 16, respectively are polarizable and, thus,
  • organelles 24 and 26 may have a "hammering" effect
  • pulsed forces beat on the intracellular organelles at a desired rhythm, e.g., a pre ⁇
  • a field normal to the longitudinal axis of bridge 22 i.e., a field normal to the longitudinal axis of bridge 22 (i.e., a field normal to the longitudinal axis of bridge 22 (i.e., a field normal to the longitudinal axis of bridge 22 (i.e., a field normal to the longitudinal axis of bridge 22 (i.e., a field normal to the longitudinal axis of bridge 22 (i.e.,
  • potential applied to the tissue being treated is rotated relative to the tissue.
  • epithelial cells divide generally only in a specific orientation
  • tumor which grows at a relatively moderate rate e.g., a tumor that doubles its volume in
  • this method causes substantially no damage to non-dividing cells, this method may
  • Shielding may be preformed by positioning conducting materials,
  • the field may be selectively applied to specific target
  • the electrodes may be inserted into the body and brought to a
  • electric fields may be generated in the body by
  • Fig. 4 presents a number of sequential microphotographic frames taken over a
  • predetermined time period showing typical cell division when no electric field is applied.
  • the cells are BHK (baby hamster kidney) cells.
  • microphotography was taken over a 40 minute period.
  • the cells were cultured in a
  • DMEM standard culture medium
  • A shows the location of a dividing cell prior to the division process.
  • a non-dividing cell is normally flattened on the tissue culture plate. In this state, the cell can not be
  • frame C in frame C and proceeds to take on an hourglass-like shape, as shown in frame D.
  • frame D In frame
  • Fig. 5 presents a number of sequential microphotographic frames taken over a
  • Fig. 5 shows the a ⁇ ested division of BHK cells when an
  • the intensity of the electric field was 78 V/cm
  • the cell is bulging from the plate and has a cleft. After almost 40 minutes,
  • tumor refers to a malignant tissue comprising
  • Tumors include leukemias, lymphomas, and
  • sarcomas and carcinomas such as, but not
  • fibrosarcoma myxosarcoma, liposarcoma, chondrosarcoma, osteogenic
  • sarcoma chordoma
  • angiosarcoma endotheliosarcoma
  • lymphangiosarcoma lymphangiosarcoma
  • lymphangioendotheliosarcoma synovioma
  • mesothelioma mesothelioma
  • Ewing's tumor
  • ovarian cancer prostate cancer, squamous cell carcinoma, basal cell carcinoma,
  • adenocarcinoma sweat gland carcinoma, sebaceous gland carcinoma, papillary carcinoma
  • carcinoma renal cell carcinoma, hepatoma, bile duct carcinoma, choriocarcinoma,
  • carcinoma small cell lung carcinoma, bladder carcinoma, epithelial carcinoma, glioma,
  • hemangioblastoma hemangioblastoma, acoustic neuroma, oligodendroglioma, meningioma, melanoma,
  • any one can be treated in accordance with the invention.
  • the invention is particularly advantageous for treating brain tumors, which are difficult to treat with
  • the present invention is suitable for use in treating skin and breast tumors because
  • the present invention can control uncontrolled growth associated with
  • the tissue undergoing inappropriate growth For example, it is contemplated that the
  • AV arterio venous
  • the invention may also be used to treat psoriasis, a dermatologic
  • prostatic hypertrophy a condition associated with inflammation and possibly vascular
  • the present invention provides an effective, simple method of selectively
  • dividing cells e.g., tumor cells and parasitic organisms
  • the present invention does not damage the normal cells or organisms.
  • the present invention does not damage the normal cells or organisms.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Cell Biology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
PCT/IB2001/000202 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells Ceased WO2001060994A1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
AU33998/01A AU3399801A (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells
US10/204,334 US7333852B2 (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells
JP2001560365A JP5280600B2 (ja) 2000-02-17 2001-02-16 分裂中の細胞を破壊するための方法および装置
EP01906036A EP1259596A4 (en) 2000-02-17 2001-02-16 METHOD AND DEVICE FOR DESTROYING DIVIDING CELLS
US12/199,498 USRE43618E1 (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells
CA2400526A CA2400526C (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells
US11/111,439 US7565205B2 (en) 2000-02-17 2005-04-21 Treating a tumor or the like with electric fields at different orientations
US11/111,236 US7805201B2 (en) 2000-02-17 2005-04-21 Treating a tumor or the like with an electric field
US11/111,393 US7599745B2 (en) 2000-02-17 2005-04-21 Treating a tumor or the like with an electric field
US11/318,702 US7565206B2 (en) 2000-02-17 2005-12-27 Treating a tumor or the like with electric fields at different orientations
US11/422,641 US7599746B2 (en) 2000-02-17 2006-06-07 Apparatus and method for preventing the spread of cancerous metastases and for elimination of metastases
US12/146,918 US8175698B2 (en) 2000-02-17 2008-06-26 Treating bacteria with electric fields
US12/190,886 US7890183B2 (en) 2000-02-17 2008-08-13 Treating parasites with electric fields
US12/958,623 US8447395B2 (en) 2000-02-17 2010-12-02 Treating bacteria with electric fields
US13/428,887 US8447396B2 (en) 2000-02-17 2012-03-23 Treating bacteria with electric fields
US13/782,418 US9039674B2 (en) 2000-02-17 2013-03-01 Treating bacteria with electric fields
US13/782,579 US9056203B2 (en) 2000-02-17 2013-03-01 Treating bacteria with electric fields
US14/731,903 US9440068B2 (en) 2000-02-17 2015-06-05 Treating bacteria with electric fields
US15/231,734 US9750934B2 (en) 2000-02-17 2016-08-08 Treating bacteria with electric fields

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18329500P 2000-02-17 2000-02-17
US60/183,295 2000-02-17

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/288,562 Continuation-In-Part US7016725B2 (en) 2000-02-17 2002-11-05 Method and apparatus for destroying dividing cells

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US10204334 A-371-Of-International 2001-02-16
US10/204,334 A-371-Of-International US7333852B2 (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells
US10/402,327 Continuation-In-Part US7146210B2 (en) 2000-02-17 2003-03-28 Apparatus and method for optimizing tumor treatment efficiency by electric fields

Publications (1)

Publication Number Publication Date
WO2001060994A1 true WO2001060994A1 (en) 2001-08-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000202 Ceased WO2001060994A1 (en) 2000-02-17 2001-02-16 Method and apparatus for destroying dividing cells

Country Status (7)

Country Link
US (2) USRE43618E1 (https=)
EP (2) EP1259596A4 (https=)
JP (1) JP5280600B2 (https=)
CN (1) CN1416466A (https=)
AU (1) AU3399801A (https=)
CA (1) CA2400526C (https=)
WO (1) WO2001060994A1 (https=)

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US7136699B2 (en) 2002-10-02 2006-11-14 Standen, Ltd. Apparatus for destroying dividing cells
US7146210B2 (en) 2000-02-17 2006-12-05 Standen Ltd. Apparatus and method for optimizing tumor treatment efficiency by electric fields
US7333852B2 (en) 2000-02-17 2008-02-19 Standen Ltd. Method and apparatus for destroying dividing cells
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US7890183B2 (en) 2000-02-17 2011-02-15 Novocure Ltd. Treating parasites with electric fields
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US8175698B2 (en) 2000-02-17 2012-05-08 Novocure Ltd. Treating bacteria with electric fields
US8447395B2 (en) 2000-02-17 2013-05-21 Novocure Ltd Treating bacteria with electric fields
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US20030150372A1 (en) 2003-08-14
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US7333852B2 (en) 2008-02-19
CA2400526C (en) 2013-04-23
EP1259596A4 (en) 2004-12-22
CN1416466A (zh) 2003-05-07
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